criyle/codenet-compile-errors huggingface dataset:
Language: C++

#include<bits/stdc++.h>
#define ll long long int
#define Y printf("YES\n")
#define N printf("NO\n")
#define mp make_pair
#define pb push_back
#define tp make_tuple
#define sc(a) scanf("%lld",&a)
#define sc2(a,b) scanf("%lld%lld",&a,&b)
#define sc3(a,b,c) scanf("%lld%lld%lld",&a,&b,&c)
#define pr(a) printf("%lld\n",a)
using namespace std;


int main()
{
    ll t,i,j,n,m,x,y,k;

    cin>>n>>m>>k;

    ll a[n+5],b[m+5];

    x=0;

    for(i=0; i<n; i++)
    {
        cin>>a[i];
        
        x+=a[i];
    }

    for(i=0; i<m; i++)
    {
        cin>>b[i]
        
        x+=b[i];
    }

    if(x<=k)
    {

        cout<<n+m<<endl;
        return 0;
    }

    t=0;

    ll f=0;

    for(i=0,j=0; i<n,j<m;)
    {


        if(a[i]<=b[j] && k>=a[i])
        {

            k-=a[i];
            
            a[i]=-1;
            t++;
            i++;
        }
        else if(a[i]>=b[j]  && k>=b[j])
        {

            k-=b[j];
            b[j]=-1;

            t++;
            j++;
        }

        if(a[i]>k && b[j]>k)
        {
            f=1;
            break;
        }



    }

    if(f)
    {

        cout<<t<<endl;
    }
    else
    {

        for(i=0; i<n; i++)
        {

            if(a[i]!=-1 && a[i]<=k)
            {

                t++;
                k-=a[i];
                a[i]=-1;
            }
            else{
                break;
            }
        }

        for(i=0; i<m; i++)
        {

            if(b[j]!=-1 && b[j]<=k)
            {

                t++;
                k-=b[j];
            }
            else{
                
                break;
            }
            
        }
        
        cout<<t<<endl;
    }


}


Compiler output:
a.cc: In function 'int main()':
a.cc:34:18: error: expected ';' before 'x'
   34 |         cin>>b[i]
      |                  ^
      |                  ;
   35 | 
   36 |         x+=b[i];
      |         ~
Language: C++

//Template.cpp
typedef long long ll;
#include<bits/stdc++.h>
using namespace std;
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    ll n,m,k;
    cin >> n >> m >> k;
    vector<ll>s1(n, 0);
    vector<ll>s2(m, 0);
    ll i = 0;
    while(i < n){
        cin >> s1[i];
        i++;
    }
    i = 0;
    while(i < m){
        cin >> s2[i];
        i++;
    }
    i = 0; ll j = 0;
    ll c = 0;
    ll val = 0;
    while(i < n && j < m){
        if(s1[i] < s2[j]){
            val += s1[i];
            i++;
        }else{
            val += s2[j];
            j++;
        }
        if(val <= k){
            c++;
        }else{
            break;
        }
    }
    if(i < n){
        val += s1[i];
        if(val <= k){
            c++;
        }else{
            break;
        }
        i++;
    }
    if(j < m){
        val += s2[j];
        if(val <= k){
            c++;
        }else{
            break;
        }
        j++;
    }
    cout<<c<<endl;
return 0;
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:44:13: error: break statement not within loop or switch
   44 |             break;
      |             ^~~~~
a.cc:53:13: error: break statement not within loop or switch
   53 |             break;
      |             ^~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){
  
  int a,b,c,sum=0;
  cin >> a >> b >> c;
  vector<int> x(a);
  for(int i=0;i<a;i++){
    cin >> a.at(i);
  }
   vector<int> z(b);
  for(int j=0;j<b;j++){
    cin >> b.at(j);
  }
  
  for(int i=0;i<a;i++){
    for(int j=0;j<b;j++){
      
      if( c - a.at(i) >= 0 ){
        
        sum++;
        c = c - b.at(j);
        
      if( c - b.at(j) >= 0 ){
        
        sum++;
        c = c - b.at(j);
        
      else if( c < 0 ){
        break;
      }
     }
    }
   }
  }
      
  cout << sum << endl;
  
}
  


Compiler output:
a.cc: In function 'int main()':
a.cc:10:14: error: request for member 'at' in 'a', which is of non-class type 'int'
   10 |     cin >> a.at(i);
      |              ^~
a.cc:14:14: error: request for member 'at' in 'b', which is of non-class type 'int'
   14 |     cin >> b.at(j);
      |              ^~
a.cc:20:17: error: request for member 'at' in 'a', which is of non-class type 'int'
   20 |       if( c - a.at(i) >= 0 ){
      |                 ^~
a.cc:23:19: error: request for member 'at' in 'b', which is of non-class type 'int'
   23 |         c = c - b.at(j);
      |                   ^~
a.cc:25:17: error: request for member 'at' in 'b', which is of non-class type 'int'
   25 |       if( c - b.at(j) >= 0 ){
      |                 ^~
a.cc:28:19: error: request for member 'at' in 'b', which is of non-class type 'int'
   28 |         c = c - b.at(j);
      |                   ^~
a.cc:30:7: error: expected '}' before 'else'
   30 |       else if( c < 0 ){
      |       ^~~~
a.cc:25:29: note: to match this '{'
   25 |       if( c - b.at(j) >= 0 ){
      |                             ^
a.cc: At global scope:
a.cc:38:3: error: 'cout' does not name a type
   38 |   cout << sum << endl;
      |   ^~~~
a.cc:40:1: error: expected declaration before '}' token
   40 | }
      | ^
Language: C++

#include <iostream>
using namespace std;
 
int main(){
  unsigned int a_count, b_count, limit_time;
  cin >> a_count;
  cin >> b_count;
  cin >> limit_time;
  total = 0;
  unsigned count = 0;
  int* a = new int[a_count];
  int* b = new int[b_count];
  for(unsigned int i = 0; i < a_count; ++i){
    cin >> a[i];
  }
  for(unsigned int i = 0; i < b_count; ++i){
    cin >> b[i];
  }
  
  unsigned int a_idx = 0, b_idx = 0;
  while(a_idx < a_count && b_idx < b_count){
    if(a[a_idx] <= b[b_idx] && (total + a[a_idx]) <= limit_time){
	  total += a[a_idx++];
      ++count;
    }else if((total + b[b_idx]) <= limit_time){
      total += b[b_idx++];
      ++count;
    }else{
      break;
    }
  }
  while(a_idx < a_count && total + a[a_idx] <= limit_time){
    total += a[a_idx++]; 
    ++count;
  }
  while(b_idx < b_count && total + b[b_idx] <= limit_time){
    total += b[b_idx++];
    ++count;
  }
  
  cout << count;
  delete[] a;
  delete[] b;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:3: error: 'total' was not declared in this scope
    9 |   total = 0;
      |   ^~~~~
Language: C

#include<stdio.h>
int main(void){
  int i,j,n,m,k,c=0,s=0;
  scanf("%d%d%d", &n, &m, &k);
  for(i=0;i<n;i++){
    scanf("%d", &a[i]);
  }
  for(i=0;i<m;i++){
    scanf("%d", &b[i]);
  }
  if(a[0]>k && b[0]>k){
    printf("0");
  }
  else{
    while(c<=k){
      for(i=0;i<n;i++){
        for(j=0;j<m;j++){
          if(a[i]<=b[j]){
            c+=a[i];
            s++;
          }
        }
      }
    }
  }  
  printf("%d", s);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:18: error: 'a' undeclared (first use in this function)
    6 |     scanf("%d", &a[i]);
      |                  ^
main.c:6:18: note: each undeclared identifier is reported only once for each function it appears in
main.c:9:18: error: 'b' undeclared (first use in this function)
    9 |     scanf("%d", &b[i]);
      |                  ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

#define int long long 
#define dou  double 
#define endl "\n"

const int MOD=1e9+7;

void solve()
{
	int n,m,k,i,x;
	queue<int> q1,q2;
	q1.clear(); q2.clear();
	cin >> n >> m >> k;
	for(i=0;i<n;i++)
	{
		cin >> x;
		q1.push(x);
	}
	for(i=0;i<m;i++)
	{
		cin >> x;
		q2.push(x);
	}
	int cnt=0,y;
	while(!q1.empty() or !q2.empty())
	{
		if(!q1.empty())
			x = q1.front();
		else
			x = INT_MAX;

		if(!q2.empty())
			y = q2.front();
		else
			y = INT_MAX;
		if(min(x,y) <= k)
		{
			cnt++;
			k = k-min(x,y);
			if(min(x,y)==y)
				q2.pop();
			else
				q1.pop();
		}
		else
			break;
	}
	cout << cnt << endl;
}

main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
	
	solve();
}

Compiler output:
a.cc: In function 'void solve()':
a.cc:14:12: error: 'class std::queue<long long int>' has no member named 'clear'
   14 |         q1.clear(); q2.clear();
      |            ^~~~~
a.cc:14:24: error: 'class std::queue<long long int>' has no member named 'clear'
   14 |         q1.clear(); q2.clear();
      |                        ^~~~~
a.cc: At global scope:
a.cc:53:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   53 | main()
      | ^~~~
Language: C++

#include <bits/stdc++.h>
typedef long long ll;
#define IOS ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define endl "\n";
using namespace std;
int main(){
    ll a[1000000000000];
   IOS;
   int n,m;
   ll k;
   cin>>n>>m;
   cin>>k;
   int i=0;
   for( i=0; i<n; i++){
       cin>>a[i];
   }
   int k=i;
   for(i=k; i<m+n; i++){
       cin>>a[i];
   }
   int final=m+n;
   sort(a,a+final);
   int count=0;
   int j=0;
   while(k<=0){
       k=k-a[j];
       j++;
       if(k>0){
            count++;
       }
   }
   cout<<count<<endl;
   
   
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:8: error: conflicting declaration 'int k'
   17 |    int k=i;
      |        ^
a.cc:10:7: note: previous declaration as 'll k'
   10 |    ll k;
      |       ^
Language: C++

#include<bits/stdc++.h>
#define ll long long int
#define Y printf("YES\n")
#define N printf("NO\n")
#define mp make_pair
#define pb push_back
#define tp make_tuple
#define sc(a) scanf("%lld",&a)
#define sc2(a,b) scanf("%lld%lld",&a,&b)
#define sc3(a,b,c) scanf("%lld%lld%lld",&a,&b,&c)
#define pr(a) printf("%lld\n",a)
using namespace std;


int main()
{
    ll t,i,j,n,m,x,y,k;

    cin>>n>>m>>k;

    ll a[n+5],b[m+5];

    x=0;

    for(i=0; i<n; i++)
    {
        cin>>a[i];
        
        x+=a[i];
    }

    for(i=0; i<m; i++)
    {
        cin>>b[i
        
        x+=b[i];
    }

    if(x<=k)
    {

        cout<<n+m<<endl;
        return 0;
    }

    t=0;

    ll f=0;

    for(i=0,j=0; i<n,j<m;)
    {


        if(a[i]<=b[j] && k>=a[i])
        {

            k-=a[i];
            
            a[i]=-1;
            t++;
            i++;
        }
        else if(a[i]>=b[j]  && k>=b[j])
        {

            k-=b[j];
            b[j]=-1;

            t++;
            j++;
        }

        if(a[i]>k && b[j]>k)
        {
            f=1;
            break;
        }



    }

    if(f)
    {

        cout<<t<<endl;
    }
    else
    {

        for(i=0; i<n; i++)
        {

            if(a[i]!=-1 && a[i]<=k)
            {

                t++;
                k-=a[i];
                a[i]=-1;
            }
            else{
                break;
            }
        }

        for(i=0; i<m; i++)
        {

            if(b[j]!=-1 && b[j]<=k)
            {

                t++;
                k-=b[j];
            }
            else{
                
                break;
            }
            
        }
        
        cout<<t<<endl;
    }


}


Compiler output:
a.cc: In function 'int main()':
a.cc:34:17: error: expected ']' before 'x'
   34 |         cin>>b[i
      |                 ^
      |                 ]
   35 | 
   36 |         x+=b[i];
      |         ~        
a.cc:34:17: error: expected ';' before 'x'
   34 |         cin>>b[i
      |                 ^
      |                 ;
   35 | 
   36 |         x+=b[i];
      |         ~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){
  
  int a,b,c,sum=0;
  cin >> a >> b >> c;
  vector<int> x(a);
  for(int i=0;i<a;i++){
    cin >> a.at(i);
  }
   vector<int> z(b);
  for(int j=0;j<b;j++){
    cin >> b.at(j);
  }
  
  for(int i=0;i<a;i++){
    for(int j=0;j<b;j++){
      
      if( c - a.at(i) >= 0 ){
        
        sum++;
        c = c - b.at(j);
        
      if( c - b.at(j) >= 0 ){
        
        sum++;
        c = c - b.at(j);
        
      else if( c < 0 ){
        break;
      }
      }
      }
      
  cout << sum << endl;
  
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:10:14: error: request for member 'at' in 'a', which is of non-class type 'int'
   10 |     cin >> a.at(i);
      |              ^~
a.cc:14:14: error: request for member 'at' in 'b', which is of non-class type 'int'
   14 |     cin >> b.at(j);
      |              ^~
a.cc:20:17: error: request for member 'at' in 'a', which is of non-class type 'int'
   20 |       if( c - a.at(i) >= 0 ){
      |                 ^~
a.cc:23:19: error: request for member 'at' in 'b', which is of non-class type 'int'
   23 |         c = c - b.at(j);
      |                   ^~
a.cc:25:17: error: request for member 'at' in 'b', which is of non-class type 'int'
   25 |       if( c - b.at(j) >= 0 ){
      |                 ^~
a.cc:28:19: error: request for member 'at' in 'b', which is of non-class type 'int'
   28 |         c = c - b.at(j);
      |                   ^~
a.cc:30:7: error: expected '}' before 'else'
   30 |       else if( c < 0 ){
      |       ^~~~
a.cc:25:29: note: to match this '{'
   25 |       if( c - b.at(j) >= 0 ){
      |                             ^
a.cc:38:2: error: expected '}' at end of input
   38 | }
      |  ^
a.cc:4:11: note: to match this '{'
    4 | int main(){
      |           ^
Language: Java

import java.util.*;

public class Main {
	

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int m = sc.nextInt();
		int k = sc.nextInt();
		
		
	
		//int l1 = st1.length();
		int[] A = new int[n];
		int[] B = new int[m];
		int[] C = new int[n+m];
		//int cnt = 0;
		for(int i = 0; i < n; i++) {
			A[i] = sc.nextInt();
			}
		
		for(int i = 0; i < m; i++) {
			B[i] = sc.nextInt();
			}
		
		for(int i = 0; i < n+m; i++) {
			if(i<n) C[i] = A[i];
			else C[i] = B[i-n];
		}
		
		Arrays.sort(C);
		
		long time = 0L;
		int cnt = 0;
		
		boolean flag = true;
		
		if(k<C[0]) {
			System.out.println(0);
			return;
		}
		
		while(flag) {
			for(int i = 0; i<n+m; i++) {
				if(time <= k) {
					time += C[i];
					cnt++;
				}else {
					flag=false;
					break;
				}
			}
			
		}
      
		
        	
        	System.out.println(cnt-1);
        }

Compiler output:
Main.java:60: error: reached end of file while parsing
        }
         ^
1 error
Language: Java

import java.util.*;

public class Main {
	public static void main(String[] args) {
    	Scanner sc = new Scanner(System.in);
      	int N = sc.nextInt();
      	int M = sc.nextInt();
      	int K = sc.nextInt();
        
      	PriorityQueue<Integer> maxHeap = new PriorityQueue<>(Comparators.reverseOrder());
      	long total = 0;
      	
      	for (int i = 0; i < M + N; i++) {
          	int next = sc.nextInt();
        	maxHeap.offer(next);
          	total += next;
          	if (total > K) {
              int max = maxHeap.poll();
              total -= max;
            }
        }
      	System.out.println(maxHeap.size());
    }
}

Compiler output:
Main.java:10: error: cannot find symbol
      	PriorityQueue<Integer> maxHeap = new PriorityQueue<>(Comparators.reverseOrder());
      	                                                     ^
  symbol:   variable Comparators
  location: class Main
1 error
Language: C++

#import <bits/stdc++.h>

void main(){
  

int n, m, k, temp, time, total = 0;
queue <int> a, b;
cin >> n >> m >> k;

for (int i = 0; i < n; i++){
  cin >> temp;
  a.push(temp);
}
for (int i = 0; i < m; i++){
  cin >> temp;
  b.push(temp);
}

while (time < k){
  if (a.front() > b.front()){
    time += a.front();
    a.pop();
    total += 1;
  }
  else {
    time += b.front();
    b.pop();
    total += 1÷
  }
}
cout << total - 1;
  
return 0;
}

Compiler output:
a.cc:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated]
    1 | #import <bits/stdc++.h>
      |  ^~~~~~
a.cc:28:14: error: extended character ÷ is not valid in an identifier
   28 |     total += 1÷
      |              ^
a.cc:3:1: error: '::main' must return 'int'
    3 | void main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:7:1: error: 'queue' was not declared in this scope; did you mean 'std::queue'?
    7 | queue <int> a, b;
      | ^~~~~
      | std::queue
In file included from /usr/include/c++/14/queue:66,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:157,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_queue.h:96:11: note: 'std::queue' declared here
   96 |     class queue
      |           ^~~~~
a.cc:7:8: error: expected primary-expression before 'int'
    7 | queue <int> a, b;
      |        ^~~
a.cc:8:1: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    8 | cin >> n >> m >> k;
      | ^~~
      | std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:12:3: error: 'a' was not declared in this scope
   12 |   a.push(temp);
      |   ^
a.cc:16:3: error: 'b' was not declared in this scope
   16 |   b.push(temp);
      |   ^
a.cc:20:7: error: 'a' was not declared in this scope
   20 |   if (a.front() > b.front()){
      |       ^
a.cc:20:19: error: 'b' was not declared in this scope
   20 |   if (a.front() > b.front()){
      |                   ^
a.cc:28:14: error: unable to find numeric literal operator 'operator""\U000000f7'
   28 |     total += 1÷
      |              ^~
a.cc:31:1: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   31 | cout << total - 1;
      | ^~~~
      | std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>

#define ll long long
#define ull unsigned long long

using namespace std;

int main() {
	ll N, M, K;
	cin >> N >> M >> K;

	ll sumTime = 0;
	queue<ll> A;
	for (int ii = 0; ii < N; ++ii){
		ll tmp;
		cin >> tmp;
		A.push(tmp);
		sumTime += tmp;
	}
	queue<ll> B;
	for (int ii = 0; ii < M; ++ii){
		ll tmp;
		cin >> tmp;
		B.push(tmp);
		sumTime += tmp;
	}

	if (sumTime <= K){
		cout << N + M << "\n";
		return 0;#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>

#define ll long long
#define ull unsigned long long

using namespace std;

int main() {
	ll N, M, K;
	cin >> N >> M >> K;

	ll sumTime = 0;
	queue<ll> A;
	for (int ii = 0; ii < N; ++ii){
		ll tmp;
		cin >> tmp;
		A.push(tmp);
		sumTime += tmp;
	}
	queue<ll> B;
	for (int ii = 0; ii < M; ++ii){
		ll tmp;
		cin >> tmp;
		B.push(tmp);
		sumTime += tmp;
	}

	ll ans = 0;
	ll time = 0;
	while(time <= K) {
		if (A.empty() && B.empty()){
			break;
		} else if (A.empty()) {
			ll t = B.front(); B.pop();
			time += t;
			if (time > K){
				break;
			}
			ans++;	
		} else if (B.empty()) {
			ll t = A.front(); A.pop();
			time += t;
			if (time > K){
				break;
			}
			ans++;	
		} else {
			ll ta = A.front();
			ll tb = B.front();
			if (ta < tb){
				A.pop();
				time += ta;
				if (time > K){
					break;
				}
				ans++;	
			} else {	
				B.pop();
				time += tb;
				if (time > K){
					break;
				}
				ans++;	
			}
		}
	}

	cout << ans << "\n";

	return 0;
}

	}

	ll ans = 0;
	ll time = 0;
	while(time <= K) {
		if (A.empty() && B.empty()){
			break;
		} else if (A.empty()) {
			ll t = B.front(); B.pop();
			time += t;
			if (time > K){
				break;
			}
			ans++;	
		} else if (B.empty()) {
			ll t = A.front(); A.pop();
			time += t;
			if (time > K){
				break;
			}
			ans++;	
		} else {
			ll ta = A.front();
			ll tb = B.front();
			if (ta < tb){
				A.pop();
				time += ta;
				if (time > K){
					break;
				}
				ans++;	
			} else {	
				B.pop();
				time += tb;
				if (time > K){
					break;
				}
				ans++;	
			}
		}
	}

	cout << ans << "\n";

	return 0;
}


Compiler output:
a.cc:31:26: error: stray '#' in program
   31 |                 return 0;#pragma GCC optimize("Ofast")
      |                          ^
a.cc: In function 'int main()':
a.cc:31:27: error: 'pragma' was not declared in this scope; did you mean '_Pragma'?
   31 |                 return 0;#pragma GCC optimize("Ofast")
      |                           ^~~~~~
      |                           _Pragma
a.cc:39:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   39 | int main() {
      |         ^~
a.cc:39:9: note: remove parentheses to default-initialize a variable
   39 | int main() {
      |         ^~
      |         --
a.cc:39:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:39:12: error: a function-definition is not allowed here before '{' token
   39 | int main() {
      |            ^
Language: C++

#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>

#define ll long long
#define ull unsigned long long

using namespace std;

int main() {
	ll N, M, K;
	cin >> N >> M >> K;

	ll sumTime = 0;
	queue<ll> A;
	for (int ii = 0; ii < N; ++ii){
		ll tmp;
		cin >> tmp;
		A.push(tmp);
		sumTime += tmp;
	}
	queue<ll> B;
	for (int ii = 0; ii < M; ++ii){
		ll tmp;
		cin >> tmp;
		B.push(tmp);
		sumTime += tmp;
	}

	if (sumTime <= K){
		cout << N + M << "\n";
		break;
	}

	ll ans = 0;
	ll time = 0;
	while(time <= K) {
		if (A.empty() && B.empty()){
			break;
		} else if (A.empty()) {
			ll t = B.front(); B.pop();
			time += t;
			if (time > K){
				break;
			}
			ans++;	
		} else if (B.empty()) {
			ll t = A.front(); A.pop();
			time += t;
			if (time > K){
				break;
			}
			ans++;	
		} else {
			ll ta = A.front();
			ll tb = B.front();
			if (ta < tb){
				A.pop();
				time += ta;
				if (time > K){
					break;
				}
				ans++;	
			} else {	
				B.pop();
				time += tb;
				if (time > K){
					break;
				}
				ans++;	
			}
		}
	}

	cout << ans << "\n";

	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:31:17: error: break statement not within loop or switch
   31 |                 break;
      |                 ^~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;

int main(){
	long long n,m,k;
  	cin >> n >> m >> k;
  	vector<long long> datan(n,0);
  	vector<long long> datam(m,0);
  	for(long long i=0;i<n;i++){
    	cin >> datan.at(i);
    }
  	for(long long i=0;i<m;i++){
    	cin >> datam.at(i);
    }
  	long long sum=0;
  	while(k>0){
      	if(datan.at(0).empty()==1 && datam.at(0).empty()==1){
        	break;
        }
      	else if(datan.at(0).empty()==1){
        	sum++;
          	k = k-datam.at(0);
          	datam.erase(datam.begin());
        }
      	else if(datam.at(0).empty()==1){
        	sum++;
          	k = k-datan.at(0);
          	datan.erase(datan.begin());
        }
    	else if(datan.at(0)>=datam.at(0)){
        	sum++;
          	k = k-datam.at(0);
          	datam.erase(datam.begin());
        }
      	else if(datam.at(0)>datan.at(0)){
        	sum++;
          	k = k-datan.at(0);
          	datan.erase(datan.begin());
        }
    }
  	cout << sum-1 << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:24: error: request for member 'empty' in 'datan.std::vector<long long int>::at(0)', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'}
   17 |         if(datan.at(0).empty()==1 && datam.at(0).empty()==1){
      |                        ^~~~~
a.cc:17:50: error: request for member 'empty' in 'datam.std::vector<long long int>::at(0)', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'}
   17 |         if(datan.at(0).empty()==1 && datam.at(0).empty()==1){
      |                                                  ^~~~~
a.cc:20:29: error: request for member 'empty' in 'datan.std::vector<long long int>::at(0)', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'}
   20 |         else if(datan.at(0).empty()==1){
      |                             ^~~~~
a.cc:25:29: error: request for member 'empty' in 'datam.std::vector<long long int>::at(0)', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'}
   25 |         else if(datam.at(0).empty()==1){
      |                             ^~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int n, m, k;
  cin >> n >> m >> k;
  int x, y, i=0, j=0, a[200000], b[200000];
  
  while(cin >>x){
    a[i] = x;
    i++;
  }
  while(cin >> y){
    b[j] = y;
    j++;
  }
  a.insert(a.end(), b.begin(), b.end()); 
   sort(a.begin(),a.end());
  int count =0, out=0;
  for(int l=0;count <= k;l++){
    count += a[l];
    out++;
}
  cout << out <<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:5: error: request for member 'insert' in 'a', which is of non-class type 'int [200000]'
   17 |   a.insert(a.end(), b.begin(), b.end());
      |     ^~~~~~
a.cc:17:14: error: request for member 'end' in 'a', which is of non-class type 'int [200000]'
   17 |   a.insert(a.end(), b.begin(), b.end());
      |              ^~~
a.cc:17:23: error: request for member 'begin' in 'b', which is of non-class type 'int [200000]'
   17 |   a.insert(a.end(), b.begin(), b.end());
      |                       ^~~~~
a.cc:17:34: error: request for member 'end' in 'b', which is of non-class type 'int [200000]'
   17 |   a.insert(a.end(), b.begin(), b.end());
      |                                  ^~~
a.cc:18:11: error: request for member 'begin' in 'a', which is of non-class type 'int [200000]'
   18 |    sort(a.begin(),a.end());
      |           ^~~~~
a.cc:18:21: error: request for member 'end' in 'a', which is of non-class type 'int [200000]'
   18 |    sort(a.begin(),a.end());
      |                     ^~~
Language: C++

#include<bits/stdc++.h>
#include<queue>
using namespace std;
typedef long long ll;
typedef pair<ll, int> P;
int main () {
  int num[2];
  cin >> num[0] >> num[1];
  ll K;
  cin >> K;
  ll bok[2][200001];
  for (int i = 0; i < 2; i ++) {
    for (int j = 0; j < num[i]; j ++) {
      cin >> bok[i][j];
    }
  }
  priority_queue<P, vector<P>, greater<P>>an;
  int ans = 0;
  int fl[] = {1, 1};
  an.push(P(bok[0][0], 0));
  an.push(P(bok[1][0], 0));
  while (ans < num[0] + num[1] && an.top().front <= K) {
    P kj = an.top();
    K -= kj.front;
    an.pop();
    ans ++;
    int s = kj.second;
    an.push(P(bok[s][fl[s]], s));
    fl[s] ++;
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:44: error: 'const __gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, int> >, std::pair<long long int, int> >::value_type' {aka 'const struct std::pair<long long int, int>'} has no member named 'front'
   22 |   while (ans < num[0] + num[1] && an.top().front <= K) {
      |                                            ^~~~~
a.cc:24:13: error: 'P' {aka 'struct std::pair<long long int, int>'} has no member named 'front'
   24 |     K -= kj.front;
      |             ^~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;

int main(){
	long long n,m,k;
  	cin >> n >> m >> k;
  	vector<long long> datan(n,0);
  	vector<long long> datam(m,0);
  	for(long long i=0;i<n;i++){
    	cin >> datan.at(i);
    }
  	for(long long i=0;i<m;i++){
    	cin >> datam.at(i);
    }
  	long long sum=0;
  	while(k>0){
      	if(datan.at(0)=="" && datam.at(0)==""){
        	break;
        }
      	else if(datan.at(0)==""){
        	sum++;
          	k = k-datam.at(0);
          	datam.erase(datam.begin());
        }
      	else if(datam.at(0)==""){
        	sum++;
          	k = k-datan.at(0);
          	datan.erase(datan.begin());
        }
    	else if(datan.at(0)>=datam.at(0)){
        	sum++;
          	k = k-datam.at(0);
          	datam.erase(datam.begin());
        }
      	else if(datam.at(0)>datan.at(0)){
        	sum++;
          	k = k-datan.at(0);
          	datan.erase(datan.begin());
        }
    }
  	cout << sum-1 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:23: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   17 |         if(datan.at(0)=="" && datam.at(0)==""){
      |            ~~~~~~~~~~~^~~~
a.cc:17:42: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   17 |         if(datan.at(0)=="" && datam.at(0)==""){
      |                               ~~~~~~~~~~~^~~~
a.cc:20:28: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   20 |         else if(datan.at(0)==""){
      |                 ~~~~~~~~~~~^~~~
a.cc:25:28: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   25 |         else if(datam.at(0)==""){
      |                 ~~~~~~~~~~~^~~~
Language: C

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
using namespace std;

#define f(i, q) for(int i = 0; i < q; i++)  

typedef long long ll;

#define SIZE 200001
#define MAX 1000000001

// 昇順にソート
int asc_comp(const void* a, const void* b){
    ll x = *(ll*)a;
    ll y = *(ll*)b;
    return x - y;
}
// 降順にソート
int dec_comp(const void* a, const void* b){
    ll x = *(ll*)a;
    ll y = *(ll*)b;
    return y - x;
}

int main() {
    // qsort(in, a, sizeof(ll), dec_comp);
    ll N, M, K;
    ll A[SIZE], B[SIZE];
    scanf("%lld %lld %lld", &N, &M, &K);
    for (ll i = 0; i < N; i++) {
        scanf("%lld", &A[i]);
    }
    for (ll i = 0; i < M; i++) {
        scanf("%lld", &B[i]);
    }

    ll i, j, remain, sum;
    i = j = remain = sum = 0;
    A[N] = B[M] = MAX;
    do {
        if (A[i] > B[j]) {
            if (remain + B[i] <= K) {
                remain += B[j];
                j++;
                sum++;
            } else {
                break;
            }
        } else {
            if (remain + A[i] <= K) {
                remain += A[i];
                i++;
                sum++;
            } else {
                break;
            }
        }
    } while( remain <= K );
    printf("%lld\n", sum);
    return 0;
}


Compiler output:
main.c:4:1: error: unknown type name 'using'
    4 | using namespace std;
      | ^~~~~
main.c:4:17: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'std'
    4 | using namespace std;
      |                 ^~~
Language: Java

import java.util.*;
import java.lang.*;
public class main{
  public static void main(String args[])
  {
    Scanner s=new Scanner(System.in);
    int m=s.nextInt();
    int n=s.nextInt();
    int k=s.nextInt();
    ArrayList ar=new ArrayList();
    for(int i=0;i<m;i++)
      ar.add(s.nextInt());
    for(int j=0;j<n;j++)
      ar.add(s.nextInt());
    ar.sort();
    int sum=0;
    int count=0;
    for(int j=ar.begin();j<=ar.end();j++)
    {
      if(sum+ar[j]<k)
      {
        sum=sum+ar[j];
        count+=1;
      }
    System.out.println(count);
  	}
}
}  

Compiler output:
Main.java:3: error: class main is public, should be declared in a file named main.java
public class main{
       ^
Main.java:15: error: method sort in class ArrayList<E> cannot be applied to given types;
    ar.sort();
      ^
  required: Comparator
  found:    no arguments
  reason: actual and formal argument lists differ in length
  where E is a type-variable:
    E extends Object declared in class ArrayList
Main.java:18: error: cannot find symbol
    for(int j=ar.begin();j<=ar.end();j++)
                ^
  symbol:   method begin()
  location: variable ar of type ArrayList
Main.java:18: error: cannot find symbol
    for(int j=ar.begin();j<=ar.end();j++)
                              ^
  symbol:   method end()
  location: variable ar of type ArrayList
Main.java:20: error: array required, but ArrayList found
      if(sum+ar[j]<k)
               ^
Main.java:22: error: array required, but ArrayList found
        sum=sum+ar[j];
                  ^
Note: Main.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
6 errors
Language: C++

import java.util.Scanner;
 
public class Main {
 
    static int twoStacks(int x, int[] a, int[] b) {
 
        int a_index = 0;
        int b_index = 0;
        int count = 0;
        int sum = 0;
        // move b_index to the position where if only take elements from B, last element it can take
        while (b_index < b.length && sum + b[b_index] <= x) {
            sum += b[b_index];
            b_index++;
        }
        // loop exits only when b_index reaches end or sum > x; in both case b_index should decrease
        b_index--;
        count = b_index + 1;
 
        while (a_index < a.length && b_index < b.length) {
            sum += a[a_index];
            if (sum > x) {
                while (b_index >= 0) {
                    sum -= b[b_index];
                    b_index--;
                    if (sum <= x) break;
                }
                // if even no elements taken from B, but still sum greater than x, then a[a_index] should not be chosen
                // and loop terminates
                if (sum > x && b_index < 0) {
                    a_index--;
                    break;
                }
            }
            count = Math.max(a_index + b_index + 2, count);
            a_index++;
        }
 
        return count;
    }
 
    //private static final Scanner scanner = new Scanner(System.in);
 
    public static void main(String[] args) {
       Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
      int m = sc.nextInt();
      int k = sc.nextInt();
      int[] arr1 = new int[n];
      int[] arr2 = new int[m];
      for(int i=0;i<n;i++){
        arr1[i]=sc.nextInt();
      }
      for(int j=0;j<m;j++){
        arr2[j]=sc.nextInt();
      }
      System.out.println(twoStacks(k,arr1,arr2));
      }
  }


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.Scanner;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class Main {
      | ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int n, m, k;
  cin >> n >> m >> k;
  int x, y, i=0, j=0, a[n], b[m];
  
  while(cin >>x){
    a[i] = x;
    i++;
  }
  while(cin >> y){
    b[j] = y;
    j++;
  }
  a.insert(a.end(), b.begin(), b.end()); 
   sort(a.begin(),a.end());
  int count =0, out=0;
  for(int l=0;count <= k;l++){
    count += a[l];
    out++;
}
  cout << out <<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:5: error: request for member 'insert' in 'a', which is of non-class type 'int [n]'
   17 |   a.insert(a.end(), b.begin(), b.end());
      |     ^~~~~~
a.cc:17:14: error: request for member 'end' in 'a', which is of non-class type 'int [n]'
   17 |   a.insert(a.end(), b.begin(), b.end());
      |              ^~~
a.cc:17:23: error: request for member 'begin' in 'b', which is of non-class type 'int [m]'
   17 |   a.insert(a.end(), b.begin(), b.end());
      |                       ^~~~~
a.cc:17:34: error: request for member 'end' in 'b', which is of non-class type 'int [m]'
   17 |   a.insert(a.end(), b.begin(), b.end());
      |                                  ^~~
a.cc:18:11: error: request for member 'begin' in 'a', which is of non-class type 'int [n]'
   18 |    sort(a.begin(),a.end());
      |           ^~~~~
a.cc:18:21: error: request for member 'end' in 'a', which is of non-class type 'int [n]'
   18 |    sort(a.begin(),a.end());
      |                     ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int n, m, k;
  cin >> n >> m >> k;
  int x, y, i=0, j=0, a[n], n[m];
  
  while(cin >>x){
    a[i] = x;
    i++;
  }
  while(cin >> y){
    b[j] = y;
    j++;
  }
  a.insert(a.end(), b.begin(), b.end()); 
   sort(a.begin(),a.end());
  int count =0, out=0;
  for(int l=0;count <= k;l++){
    count += a[l];
    out++;
}
  cout << out <<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:29: error: conflicting declaration 'int n [m]'
    7 |   int x, y, i=0, j=0, a[n], n[m];
      |                             ^
a.cc:5:7: note: previous declaration as 'int n'
    5 |   int n, m, k;
      |       ^
a.cc:14:5: error: 'b' was not declared in this scope
   14 |     b[j] = y;
      |     ^
a.cc:17:5: error: request for member 'insert' in 'a', which is of non-class type 'int [n]'
   17 |   a.insert(a.end(), b.begin(), b.end());
      |     ^~~~~~
a.cc:17:14: error: request for member 'end' in 'a', which is of non-class type 'int [n]'
   17 |   a.insert(a.end(), b.begin(), b.end());
      |              ^~~
a.cc:17:21: error: 'b' was not declared in this scope
   17 |   a.insert(a.end(), b.begin(), b.end());
      |                     ^
a.cc:18:11: error: request for member 'begin' in 'a', which is of non-class type 'int [n]'
   18 |    sort(a.begin(),a.end());
      |           ^~~~~
a.cc:18:21: error: request for member 'end' in 'a', which is of non-class type 'int [n]'
   18 |    sort(a.begin(),a.end());
      |                     ^~~
Language: Java

import java.util.*;
import java.lang.*;
public class main{
  public static void main(String args[])
  {
    Scanner s=new Scanner(System.in);
    int m=s.nextInt();
    int n=s.nextInt();
    int k=s.nextInt();
    Arraylist ar=new ArrayList();
    for(int i=0;i<m;i++)
      ar.add(s.nextInt());
    for(int j=0;j<n;j++)
      ar.add(s.nextInt());
    ar.sort();
    int sum=0;
    int count=0;
    for(int j=ar.begin();j<=ar.end();j++)
    {
      if(sum+ar[i]<k)
      {
        sum=sum+ar[i];
        count+=1;
      }
    System.out.println(count);
  	}
}
}  

Compiler output:
Main.java:3: error: class main is public, should be declared in a file named main.java
public class main{
       ^
Main.java:10: error: cannot find symbol
    Arraylist ar=new ArrayList();
    ^
  symbol:   class Arraylist
  location: class main
Main.java:20: error: cannot find symbol
      if(sum+ar[i]<k)
                ^
  symbol:   variable i
  location: class main
Main.java:22: error: cannot find symbol
        sum=sum+ar[i];
                   ^
  symbol:   variable i
  location: class main
4 errors
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
	long long n, m, k;
	list<long long> a;
	list<long long> b;
	for (int i = 0; i < n; i++) {
		long long input;
		cin >> input;
		a.push_back(input);
	}
	for (int i = 0; i < m; i++) {
		long long input;
		cin >> input;
		b.push_back(input);
	}

	long long timeSum;
	int count = 0;
	while (true) {
		if (a[0] <= b[0]) {
			if (a[0] <= k - timeSum) {
				timeSum += a[0];
				a.pop_front();
			}
			else {
				break;
			}
		}
		else {
			if (b[0] <= k - timeSum) {
				timeSum += b[0];
				b.pop_front();
			}
			else {
				break;
			}
		}

		count++;
	}

	cout << count << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:22: error: no match for 'operator[]' (operand types are 'std::__cxx11::list<long long int>' and 'int')
   22 |                 if (a[0] <= b[0]) {
      |                      ^
a.cc:22:30: error: no match for 'operator[]' (operand types are 'std::__cxx11::list<long long int>' and 'int')
   22 |                 if (a[0] <= b[0]) {
      |                              ^
a.cc:23:30: error: no match for 'operator[]' (operand types are 'std::__cxx11::list<long long int>' and 'int')
   23 |                         if (a[0] <= k - timeSum) {
      |                              ^
a.cc:24:45: error: no match for 'operator[]' (operand types are 'std::__cxx11::list<long long int>' and 'int')
   24 |                                 timeSum += a[0];
      |                                             ^
a.cc:32:30: error: no match for 'operator[]' (operand types are 'std::__cxx11::list<long long int>' and 'int')
   32 |                         if (b[0] <= k - timeSum) {
      |                              ^
a.cc:33:45: error: no match for 'operator[]' (operand types are 'std::__cxx11::list<long long int>' and 'int')
   33 |                                 timeSum += b[0];
      |                                             ^
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0;i<n;i++)
#define rep2(i,a,n) for(int i=a;i<n;i++)
#define been(ix) (ix).begin(),(ix).end()
using namespace std;
typedef long long ll; 
typedef vector<int> vi;
typedef vector<long long> vl;
const ll INFL = 1e18;
const int INF = 1001001001; 
typedef pair<int,int> P;
#define foreach(ix,i) for(auto& (ix) : (i))
typedef long double ld;
const int mod =1000000007;
const double PI = acos(-1);
int main(){
    int n,m;cin>>n>>m;
    ll k;cin>>k;
    int ans =0;
    ll now=0;
    vl a,b;
    rep(i,n){
        ll x;
        cin>>x;
        a.push_back(x);
    }
    rep(i,m){
        ll x;cin>>x;
        b.push_back(x);
    }
    vl suma(n,0),sumb(m,0);
    suma[0]=a[0];sumb[0]=b[0];
    rep(i,n-1)suma[i+1]=suma[i]+a[i+1];
    rep(i,m-1)sumb[i+1]=sumb[i]+b[i+1];
    int ans =0;
    rep(i,n){
        ll w =k-suma[i];
        auto it =upper_bound(been(sumb),w);
        int add = sumb.begin()-it;
        int sum =0;
        if(it!=sumb.begin()) sum = i+1+add;
        ans=max(sum,add);
    }
    cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:35:9: error: redeclaration of 'int ans'
   35 |     int ans =0;
      |         ^~~
a.cc:19:9: note: 'int ans' previously declared here
   19 |     int ans =0;
      |         ^~~
Language: C++

#include <iostream>
#include <algorithm>
#include <vector>
#include <cstdio>
#include <bits/stdc++.h>
#include <unordered_map>
#include <unordered_set>
#include <queue>

#define pb push_back
     
using namespace std;
typedef long long ll;
typedef long long ull;
typedef pair<ll, ll> pll;
     
bool debug = false;
     

struct state
{
    ll a,b,c;

    state(ll a, ll b, ll c) : a(a), b(b), c(c)
    {

    }

  bool operator==(const state &other) const
  { return (a == other.a
            && b == other.b
            && c == other.c);
  }
};


struct KeyHasher
{
    size_t operator()(const state& k) const
  {
    //using std::size_t;
    //using std::hash;
    //using std::string;

    return ((hash<ll>()(k.a)
               ^ (hash<ll>()(k.b) << 1)) >> 1)
               ^ (hash<ll>()(k.c) << 1);
  }
};  


void solve(ll casen)
{
    ll res = 0;
    
    cout << "Case #" << casen << ": " << res << endl;
}

int main()
{
    // $ g++ -std=c++14 -Wshadow -Wall -o c C.cpp

    // !!! Here, unordered map was too slow!!!
    std::ios::sync_with_stdio(false);
    cin.tie(NULL);
    

   ull n,m,k;
   cin >> n >> m >> k;

   vector<ull> a,b;
   vector<ull> cumA,cumB;

   for (ull i = 0; i < n; i++)
   {
   		ull x;
   		cin >> x;
   		a.pb(x);
   }
   for (ull i = 0; i < m; i++)
   {
   		ull x;
   		cin >> x;
   		b.pb(x);
   }

   cumA.pb(a[0]);
   for (ull i = 1; i < n; i++)
   	cumA.pb(cumA[i-1] + a[i]);

   cumB.pb(b[0]);
   for (ull i = 1; i < m; i++)
   	cumB.pb(cumB[i-1] + b[i]);


   for (ull i = 0; i < n; i++)
   {
   		ull timeSpendInA = cumA[i];
   		ll timeToUse = k - timeSpendInA;

   		if (timeToUse == 0)
   		{
   			if (i+1 > res) res = i+1;
   		}
   		else if (timeToUse > 0)
   		{

  			vector<ull>::iterator up;
  			up = upper_bound(cumB.begin(), cumB.end(), timeToUse);

  			ull booksFromB = up - cumB.begin();

  			if (i+1 + booksFromB > res) res = i+1 + booksFromB;
   		}
   }

   /*
   while (timePassed <= k and i < n and j < m)
   {
   		if (a[i] < b[j])
   		{
   			timePassed += a[i];
   			i++;

   		}
   		else
   		{
   			timePassed += b[j];
   			j++;
   		}
   		res++;
   }
   while (timePassed <= k and i < n)
   {
   		timePassed += a[i];
   		i++;
   		res++;
   }
   while (timePassed <= k and j < m)
   {
   		timePassed += b[j];
   		j++;
   		res++;
   }




   if (timePassed > k and res > 0)
   		res--;
   */

   cout << res << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:103:35: error: 'res' was not declared in this scope
  103 |                         if (i+1 > res) res = i+1;
      |                                   ^~~
a.cc:113:48: error: 'res' was not declared in this scope
  113 |                         if (i+1 + booksFromB > res) res = i+1 + booksFromB;
      |                                                ^~~
a.cc:153:12: error: 'res' was not declared in this scope
  153 |    cout << res << endl;
      |            ^~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
const long long MAX = 1e9+9;

int main(){
    long long a,b,k; cin>>a>>b>>k;
    long long dsk1[a+1]; for(int i=0; i<a; i++) cin>>dsk1[i];
    long long dsk2[b+1]; for(int i=0; i<b; i++) cin>>dsk2[i];

    dsk1[a] = dsk2[b] = MAX;

    long long cnt = 0, tot = 0;
    for(long long i=0, j=0; i+j<a+b; ){
        if(dsk1[i] <= dsk2[j]){
            tot += dsk1[i];
            i++;
        }
        else (dsk1[i] > dsk2[j]){
            tot += dsk2[j];
            j++;
        }
        if(tot > k) {
            break;
        }
        cnt++;
    }
    cout<<cnt<<"\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:33: error: expected ';' before '{' token
   18 |         else (dsk1[i] > dsk2[j]){
      |                                 ^
      |                                 ;
Language: C++


#include <iostream>

using namespace std;

int main(){
  	int x, y, maxtime;
  	cin >> x >> y >> maxtime;
  	int arr1[x];
  	int arr2[y];
  	int cnt1 = 0;
  	int cnt2 = 0;
  	int books = 0;
  	for(int i=0;i<x;i++){
  		cin >> arr1[i];
	}
	for(int i=0;i<y;i++){
  		cin >> arr2[i];
	}
	long long int sizea = sizeof(arr1);
	long long int sizeb = sizeof(arr2);
	while ((maxtime>=arr1[cnt1] or maxtime>=arr2[cnt2]) and (cnt1< sizea or cnt2<sizeb)){
		bool a = false;
		bool b = false;
		if (cnt1>=sizea){
			b = true;
		}
		if (cnt2>=sizeb)){
			a = true;
		}
		if (arr1[cnt1]>arr2[cnt2]){
			b = true;
		}
		if (arr1[cnt1]<=arr2[cnt2]) {
			maxtime-=arr1[cnt1];
			cnt1++;
			books++;
		}
		if (b == true){
			maxtime-=arr2[cnt2];
			cnt2++;
			books++;
		}
		if (a == true){
			maxtime-=arr1[cnt1];
			cnt1++;
			books++;
		}
	}
	cout << books;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:28:33: error: expected primary-expression before ')' token
   28 |                 if (cnt2>=sizeb)){
      |                                 ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int i=n, m, k;
  cin << n << m << k;
  int x, y, i=0, j=0, a[n], n[m];
  
  while(cin >>x){
    a[i] = x;
    i++;
  }
  while(cin >> y){
    b[j] = y;
    j++;
  }
  a.insert(a.end(), b.begin(), b.end()); 
   sort(a.begin(),a.end());
  int count =0, out=0;
  for(int l=0;count <= k;l++){
    count += a[l];
    out++;
}
  cout << out <<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:9: error: 'n' was not declared in this scope
    5 |   int i=n, m, k;
      |         ^
a.cc:6:15: error: 'm' was not declared in this scope
    6 |   cin << n << m << k;
      |               ^
a.cc:6:20: error: 'k' was not declared in this scope
    6 |   cin << n << m << k;
      |                    ^
a.cc:7:13: error: redeclaration of 'int i'
    7 |   int x, y, i=0, j=0, a[n], n[m];
      |             ^
a.cc:5:7: note: 'int i' previously declared here
    5 |   int i=n, m, k;
      |       ^
a.cc:10:5: error: 'a' was not declared in this scope
   10 |     a[i] = x;
      |     ^
a.cc:14:5: error: 'b' was not declared in this scope
   14 |     b[j] = y;
      |     ^
a.cc:17:3: error: 'a' was not declared in this scope
   17 |   a.insert(a.end(), b.begin(), b.end());
      |   ^
a.cc:17:21: error: 'b' was not declared in this scope
   17 |   a.insert(a.end(), b.begin(), b.end());
      |                     ^
Language: C++

//Template.cpp
typedef long long ll;
#include<bits/stdc++.h>
using namespace std;
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n,m; long long int k;
    cin >> n >> m >> k;
    vector<int>s1(n, 0);
    vector<int>s2(m, 0);
    int i = 0;
    while(i < n){
        cin >> s1[i];
        i++;
    }
    i = 0;
    while(i < m){
        cin >> s2[i];
        i++;
    }
    i = 0; int j = 0;
    int c = 0;
    long long int val = 0;
    while(i < n && j < m){
        if(s1[i] < s2[j]){
            val += s1[i];
            i++;
        }else{
            val += s2[j];
            j++;
        }
        if(val <= k){
            c++;
        }else{
            break;
        }
    }
    if(i < n){
        val += s1[i];
        if(val <= k){
            c++;
        }else{
            break;
        }
        i++;
    }
    if(j < m){
        val += s2[j];
        if(val <= k){
            c++;
        }else{
            break;
        }
        j++;
    }
    cout<<c<<endl;
return 0;
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:44:13: error: break statement not within loop or switch
   44 |             break;
      |             ^~~~~
a.cc:53:13: error: break statement not within loop or switch
   53 |             break;
      |             ^~~~~