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

#include<iostream>
#include<utility>
#include<tuple>
#include<set>
#include<list>
#include<vector>
#include<map>
#include<algorithm>
#include<queue>

#define dump(x)  cerr << #x << " = " << (x) << endl;
#define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FUNCTION__ << endl;
#define int long long

const long long MAXN = 1e6;
const long long MOD = 1e9+7;
const long long INF = __LONG_LONG_MAX__ / 2;

using namespace std;

vector<pair<int, int> > ranges;
vector<pair<int, int> > nextranges;
vector<pair<int, int> > result;

void mergeRange(){
    sort(nextranges.begin(),nextranges.end());
    vector<pair<int, int> >::iterator it = nextranges.begin();
    pair<int,int> current = *(it)++;
    while (it != nextranges.end()){
       if (current.second > it->first){ // you might want to change it to >=
           current.second = std::max(current.second, it->second); 
       } else {
           ranges.push_back(current);
           current = *(it);
       }
       it++;
    }
    ranges.push_back(current);
}

signed main(){
    int N, A, B, C, D;
    cin >> N >> A >> B >> C >> D;
    N -= 1;
    ranges.push_back(makeₚair(A,A));

    for (int i = 0; i < N; i++){
      cout << i << endl;
      nextranges.clear();
      for(auto r : ranges){
        nextranges.push_back(makeₚair(r.first + C, r.second + D));
        nextranges.push_back(makeₚair(r.first - D, r.second - C));
      }
      mergeRange();
    }

    for (auto r : ranges)
    {
      if(r.first <= B && B <= r.second){
        cout << "YES" << endl;
        return 0;
      }
    }
    cout << "NO"<< endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:45:22: error: 'make\U0000209aair' was not declared in this scope
   45 |     ranges.push_back(makeₚair(A,A));
      |                      ^~~~~~~~
Language: C++

#include <bits/stdc++.h>

using namespace std;

#define int long long

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);

	int n, a, b, c, d;
	cin >> n >> a >> b >> c >> d;


	for (int i = 0; i < n; i++)
	{
		int mn = a + i * c, mx = a + i * d;
		int kek1 = mn - (n - i - 1ll) * d, kek2 = mx - (n - i - 1ll) * c;
		if (b >= kek1 && b <= kek2)
		{
			cout << "YES";
			return 0;
		}
	}

	cout << "NO";

	return 0; 
}

Compiler output:
cc1plus: error: '::main' must return 'int'
Language: C++

#include <stdio.h>  
#include <string.h>  
#include <stdlib.h>  
#include <iostream>  
#include <algorithm>  
#include <time.h>  
#include<cstdio>
#include<vector>
#include<functional>


using namespace std;
long long n, a, b, c, d;


int main() {

    scanf("%lld%lld%lld%lld%lld", &n, &a, &b, &c, &d);
    for (int i = 0; i != N; ++i){
	if ((n * c - c - i * (c + d) <= b - a )&&( b- a<= n * d - d - i * (c + d))) {
            printf("YES");
            return 0;
        }
	}
    printf("NO");
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:26: error: 'N' was not declared in this scope
   19 |     for (int i = 0; i != N; ++i){
      |                          ^
Language: C++

from math import gcd
N,A,B,C,D=map(int,input().split())
def egcd(a, b):
    if a == 0:
        return (b, 0, 1)
    else:
        g, x, y = egcd(b % a, a)
        return (g, y - (b // a) * x, x)
if C==0 and D==0:
    if A==B:
        print("YES")
    else:
        print("NO")
elif C==0 or D==0:
    if D==0:
        C,D=D,C
    if (A-B)%D==0 and abs(A-B)//D<N:
        print("YES")
    else:
        print("NO")
else:
    if abs(B-A)%gcd(C,D):
        print("NO")
    else:
        (g,x,y)=egcd(C,D)
        times=(B-A)//g
        #xC+yD=B-A
        x*=times
        y*=times
#        x+=D*alpha
#        y-=C*alpha
        alphamin=-10**36
        alphamax=10**36
        while alphamax-alphamin>1:
            mid=alphamin+(alphamax-alphamin)//2
            if abs(x+mid*D)+abs(y-mid*C)>abs(x+mid*D+D)+abs(y-mid*C-C):
                alphamin=mid
            else:
                alphamax=mid
        x=x+alphamax*D
        y=y-alphamax*C
        a=[-1,0,1]
        if any(abs(x+i*D)+abs(y-C*i)<N and (abs(x+i*D)+abs(y-i*D))%2!=N%2 for i in a):
            print("YES")
        else:
            print("NO")


Compiler output:
a.cc:27:10: error: invalid preprocessing directive #xC
   27 |         #xC+yD=B-A
      |          ^~
a.cc:30:10: error: invalid preprocessing directive #x
   30 | #        x+=D*alpha
      |          ^
a.cc:31:10: error: invalid preprocessing directive #y
   31 | #        y-=C*alpha
      |          ^
a.cc:1:1: error: 'from' does not name a type
    1 | from math import gcd
      | ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define MOD 1e9 + 7

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);

    double a,b,c,d;
    int n;

    cin >> n >> a >> b >> c >> d;

    int diff = abs(a-b);

    if(n%2==1)
    {
        if(c==d)
        {
            if(diff/(n-1)%d==0) cout << "YES";
            else cout << "NO";
        }
        else if(diff/(n-1)<=d) cout << "YES";
        else cout << "NO";
    }
    else
    {
        if(diff/(n-1)>=c and diff/(n-1)<=d) cout << "YES";
        else cout << "NO";
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:26: error: invalid operands of types 'int' and 'double' to binary 'operator%'
   21 |             if(diff/(n-1)%d==0) cout << "YES";
      |                ~~~~~~~~~~^~
      |                    |      |
      |                    int    double
Language: C++

#include <iostream>
using namespace std;
int main(void){
    // Here your code !
    long long int n,a,b,c,d;
    cin>>n>>a>>b>>c>>d;
    n=n-1;
    int flag=1;
    
    long long int x=b-a;
    long long int sup=(d*n-x)/(c+d);
    long long int inf=(c*n-x+c+d-1)/(c+d);
    
    if(sup<inf){
        cout<<"NO";
        flag=0;
    }
    if(sup<0){
        cout<<"NO";
        flag=0
    }
    if(inf>n){
        cout<<"NO";
        flag=0;
    }
    if(flag){
        cout<<"YES";
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:15: error: expected ';' before '}' token
   20 |         flag=0
      |               ^
      |               ;
   21 |     }
      |     ~
Language: C++

#include<iostream>
#include <list>
#include<stack>
#include<queue>
#include <vector>
#include <set>
#include <map>
#include<algorithm>
#include<math.h>
#include<stdlib.h>
#include<string.h>
#include"time.h"
using namespace std;

#define FOR(k,m,n) for(int (k)=(m);(k)<(n);(k)++)
#define REP(i,n) FOR((i),0,(n))
#define LL long long
#define CLR(a) memset((a),0,sizeof(a))
#define SZ(x) (int((x).size()))
#define dump(x)  cerr << #x << " = " << (x) << endl

//毎回変える場所
#define N_MAX 200


//問題文のとおり
LL N,A,B,C,D;

int main() {
	//入力
	cin>>N>>A>>B>>C>>D;
	N--;

	LL AB  = abs(B - A);
	LL esp = abs(D - C);
	LL CNum=0;
	LL DNum=0;

	//最近点を探す
	LL temp=AB;
	while (abs(temp - C*(CNum + 1))<abs(temp - C*CNum))CNum++;
	while (abs(temp - D*(DNum + 1))<abs(temp - D*DNum))DNum++;



	//パターン1と2
	//if (D*N<abs(B - A))cout << "NO" << endl;
	//else if (C*D <= abs(B - A))cout << "YES" << endl;
	//else {

		//Cばかりでスタートの場合

		FOR(i,-1,2){
			LL near = abs(temp - C*(CNum+i));
			LL rest = N - (CNum+i);
		
			if (rest % 2 == 0 && near <= esp*LL(rest / 2)){
				cout << "YES" << endl;
				goto end;
			}
		}
		//Dばかりでスタートの場合
		FOR(i, -1, 2) {
			LL near = abs(temp - D*(DNum + i));
			LL rest = N - (DNum + i);

			if (rest % 2 == 0 && near <= esp*LL(rest / 2)) {
				cout << "YES" << endl;
				goto end;
			}
		}
		cout<<"NO"<<endl;
		/*
		if (esp*int(N / 2) <= abs(B - A))cout << "YES" << endl;
		else if (C - esp*int(N / 2) <= abs(B - A))cout << "YES" << endl;
		else cout << "NO" << endl;
		*/
	//}
	end:;
	cin>>N;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:12: error: expected primary-expression before 'long'
   17 | #define LL long long
      |            ^~~~
a.cc:57:58: note: in expansion of macro 'LL'
   57 |                         if (rest % 2 == 0 && near <= esp*LL(rest / 2)){
      |                                                          ^~
a.cc:57:58: error: expected ')' before 'long'
   57 |                         if (rest % 2 == 0 && near <= esp*LL(rest / 2)){
      |                            ~                             ^
      |                                                          )
a.cc:17:12: error: expected primary-expression before 'long'
   17 | #define LL long long
      |            ^~~~
a.cc:67:58: note: in expansion of macro 'LL'
   67 |                         if (rest % 2 == 0 && near <= esp*LL(rest / 2)) {
      |                                                          ^~
a.cc:67:58: error: expected ')' before 'long'
   67 |                         if (rest % 2 == 0 && near <= esp*LL(rest / 2)) {
      |                            ~                             ^
      |                                                          )
Language: C++

#include <bits/stdc++.h>

using namespace std;

#define int int64_t

int main()
{
    //freopen("input.txt", "r", stdin);
    ios::sync_with_stdio(0);
    cin.tie(0);
    int n, a, b, c, d;
    cin >> n >> a >> b >> c >> d;
    int start = a - (n - 1) * d;
    int len = (n - 1) * (d - c);
    int space = 2 * c + (n - 2) * (c - d);
    int end = a + (n - 1) * d;
    if(!(start <= b && b <= end))
    {
        cout << "NO" << endl;
        return 0;
    }
    if(space <= 0)
        cout << "YES" << endl;
    else
        cout << ((b - start) % (space + len) <= space ? "YES" : "NO") << endl;
}


Compiler output:
a.cc:5:13: error: '::main' must return 'int'
    5 | #define int int64_t
      |             ^~~~~~~
a.cc:7:1: note: in expansion of macro 'int'
    7 | int main()
      | ^~~
Language: C

#include <stdio.h>

int main(void) {
  int N A B C D;

  scanf("%ld %ld %ld %ld %ld", &N, &A, &B, &C, &D);

  if(N == 3) {
    if(A <= B) {
      if(C <= B - A && B - A <= D)
        printf("YES");
      else
        printf("NO");
    }
    else {
      if(C <= A - B && A - B <= D)
        printf("YES");
      else 
        printf("NO");
    }
  }
  else {
  if(A <= B) {
    if(B <= A+D*N) {
      printf("YES");
    }
    else {
      printf("NO");
    }
  }
  else {
    if(B >= A-D*N) {
      printf("YES");
    }
    else {
      printf("NO");
    }
  }
  } 
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:9: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'A'
    4 |   int N A B C D;
      |         ^
main.c:4:9: error: unknown type name 'A'
main.c:4:13: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'C'
    4 |   int N A B C D;
      |             ^
main.c:6:33: error: 'N' undeclared (first use in this function)
    6 |   scanf("%ld %ld %ld %ld %ld", &N, &A, &B, &C, &D);
      |                                 ^
main.c:6:33: note: each undeclared identifier is reported only once for each function it appears in
main.c:6:37: error: 'A' undeclared (first use in this function)
    6 |   scanf("%ld %ld %ld %ld %ld", &N, &A, &B, &C, &D);
      |                                     ^
main.c:6:41: error: 'B' undeclared (first use in this function)
    6 |   scanf("%ld %ld %ld %ld %ld", &N, &A, &B, &C, &D);
      |                                         ^
main.c:6:45: error: 'C' undeclared (first use in this function)
    6 |   scanf("%ld %ld %ld %ld %ld", &N, &A, &B, &C, &D);
      |                                             ^
main.c:6:49: error: 'D' undeclared (first use in this function)
    6 |   scanf("%ld %ld %ld %ld %ld", &N, &A, &B, &C, &D);
      |                                                 ^
Language: Java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.StringTokenizer;

public class B {

	public static void main(String[] args)  {
		FastScanner scan = new FastScanner();
		PrintWriter out = new PrintWriter(System.out);
		int n = scan.nextInt();
		long a = scan.nextInt(), b = scan.nextInt(), c = scan.nextInt(), d = scan.nextInt();
		long[] z = new long[n];
		z[0] = a;
		z[n-1] = b;
		for(int i = 1; i < n-1; i++) z[i] = z[i-1]+d;
		for(int i = n-2; i >= 0; i--){
			if(Math.abs(z[i]-z[i+1]) >= c && Math.abs(z[i]-z[i+1]) <= d) {
				out.println("YES");
				out.close();
				return;
			}
			z[i] = z[i+1]+c;
		}
		for(int i = 1; i < n-1; i++) z[i] = z[i-1]-d;
		for(int i = n-2; i >= 0; i--){
			if(Math.abs(z[i]-z[i+1]) >= c && Math.abs(z[i]-z[i+1]) <= d) {
				out.println("YES");
				out.close();
				return;
			}
			z[i] = z[i+1]-c;
		}
		out.println("NO");
		out.close();
	}
	
	static class FastScanner {
		BufferedReader br;
		StringTokenizer st;

		public FastScanner() {
			try	{
				br = new BufferedReader(new InputStreamReader(System.in));
				st = new StringTokenizer(br.readLine());
			} catch (Exception e){e.printStackTrace();}
		}

		public String next() {
			if (st.hasMoreTokens())	return st.nextToken();
			try {st = new StringTokenizer(br.readLine());}
			catch (Exception e) {e.printStackTrace();}
			return st.nextToken();
		}

		public int nextInt() {return Integer.parseInt(next());}

		public long nextLong() {return Long.parseLong(next());}

		public double nextDouble() {return Double.parseDouble(next());}

		public String nextLine() {
			String line = "";
			if(st.hasMoreTokens()) line = st.nextToken();
			else try {return br.readLine();}catch(IOException e){e.printStackTrace();}
			while(st.hasMoreTokens()) line += " "+st.nextToken();
			return line;
		}

		public int[] nextIntArray(int n) {
			int[] a = new int[n];
			for(int i = 0; i < n; i++) a[i] = nextInt();
			return a;
		}

		public long[] nextLongArray(int n){
			long[] a = new long[n];
			for(int i = 0; i < n; i++) a[i] = nextLong();
			return a;
		}

		public double[] nextDoubleArray(int n){
			double[] a = new double[n];
			for(int i = 0; i < n; i++) a[i] = nextDouble();
			return a;
		}

		public char[][] nextGrid(int n, int m){
			char[][] grid = new char[n][m];
			for(int i = 0; i < n; i++) grid[i] = next().toCharArray();
			return grid;
		}
	}


}

Compiler output:
Main.java:8: error: class B is public, should be declared in a file named B.java
public class B {
       ^
1 error
Language: C++

#include<map>
#include<set>
#include<cmath>
#include<queue>
#include<cstdio>
#include<vector>
#include<cctype>
#include<cstdlib>
#include<cstring>
#include<utility>
#include<algorithm>

#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define For(i,x,y) for(int i=((int)x);i<=((int)y);i++)
#define Dep(i,y,x) for(int i=((int)y);i>=((int)x);i--)
#define Rep(i,x) for (int y,i=head[x];i;i=E[i].nxt)
using namespace std;

const int inf=1000000009;

typedef double db;
typedef long long ll;
typedef unsigned int uint;
typedef pair<int,int> pii;

int rd() {
	char c=getchar(); int t=0,f=1;
	while (!isdigit(c)) f=(c=='-')?-1:1,c=getchar();
	while (isdigit(c)) t=t*10+c-48,c=getchar(); return t*f;
}
void wt(int x) {
	if (x<0) putchar('-'),wt(-x);
	else { if (x>9) wt(x/10); putchar(x%10+48); }
}

ll n,A,B,C,D,dis,p,t,l,r,mid,da,L,R;

int main() {
	n=rd()-1,A=rd(),B=rd(),C=rd(),D=rd();
	dis=abs(B-A),p=D-C;
	
	l=0,r=n/2;
	while (l<=r) {
		mid=l+r>>1;
		da=mid*2+(n&1);
		L=da*C-p*((n-da)/2);
		R=da*D+p*((n-da)/2);
		if (L<=dis && dis<=R)
			return puts("YES"),0;
		else
			{ if (R<dis) l=mid+1; }
		else
			r=mid-1;
	}
	return puts("NO");
	
	return 0;
}






Compiler output:
a.cc: In function 'int main()':
a.cc:55:17: error: 'else' without a previous 'if'
   55 |                 else
      |                 ^~~~
Language: C++

fn read<T: std::str::FromStr>() -> T {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).ok();
    s.trim().parse().ok().unwrap()
}

fn read_vec<T: std::str::FromStr>() -> Vec<T> {
    read::<String>()
        .split_whitespace()
        .map(|e| e.parse().ok().unwrap())
        .collect()
}

fn main() {
    let v = read_vec::<usize>();
    let (n, m) = (v[0], v[1]);
    let mut a = read_vec::<usize>();
    let mut x = Vec::with_capacity(m);
    let mut y = Vec::with_capacity(m);

    for i in 0..m {
        let v = read_vec::<usize>();
        x.push(v[0] - 1);
        y.push(v[1]);
    }

    let mut count = vec![0; n + 1];
    for &num in a.iter() {
        count[num] += 1;
    }
    let mut span = vec![0; n];
    for i in 1..n + 1 {
        for j in 0..count[i] {
            if i >= j + 1 {
                span[i - j - 1] += 1;
            }
        }
    }
    // println!("count {:?}", count);
    // println!("span {:?}", span);

    let mut blank_count = 0;
    for i in 0..n {
        if span[i] == 0 {
            blank_count += 1;
        }
    }

    for i in 0..m {
        let x = x[i];
        let y = y[i];

        if a[x] >= count[a[x]] {
            span[a[x] - count[a[x]]] -= 1;
            if span[a[x] - count[a[x]]] == 0 {
                blank_count += 1;
            }
        }
        count[a[x]] -= 1;

        a[x] = y;
        count[y] += 1;
        if y >= count[y] {
            span[y - count[y]] += 1;
            if span[y - count[y]] == 1 {
                blank_count -= 1;
            }
        }

        // println!("count {:?}", count);
        // println!("span {:?}", span);
        println!("{:?}", blank_count);
    }
}


Compiler output:
a.cc:21:14: error: too many decimal points in number
   21 |     for i in 0..m {
      |              ^~~~
a.cc:32:14: error: too many decimal points in number
   32 |     for i in 1..n + 1 {
      |              ^~~~
a.cc:33:18: error: too many decimal points in number
   33 |         for j in 0..count[i] {
      |                  ^~~~~~~~
a.cc:43:14: error: too many decimal points in number
   43 |     for i in 0..n {
      |              ^~~~
a.cc:49:14: error: too many decimal points in number
   49 |     for i in 0..m {
      |              ^~~~
a.cc:1:1: error: 'fn' does not name a type
    1 | fn read<T: std::str::FromStr>() -> T {
      | ^~
a.cc:7:1: error: 'fn' does not name a type
    7 | fn read_vec<T: std::str::FromStr>() -> Vec<T> {
      | ^~
a.cc:14:1: error: 'fn' does not name a type
   14 | fn main() {
      | ^~
Language: C++

#include<cstdio> #define fo(i,a,b) for(int i=a;i<=b;i++) using namespace std; const int maxn=2e5+5; int n,a[maxn],num[maxn]; int ans,cov[maxn]; void ADD(int x) { if (x<=0) return; if (++cov[x]==1) ans++; } void DEC(int x) { if (x<=0) return; if (--cov[x]==0) ans--; } int m; int main() { scanf("%d %d",&n,&m); fo(i,1,n) { scanf("%d",&a[i]); num[a[i]]++; ADD(a[i]-num[a[i]]+1); } while (m--) { int x,y; scanf("%d %d",&x,&y); DEC(a[x]-num[a[x]]+1); num[a[x]]--; num[y]++; ADD(y-num[y]+1); a[x]=y; printf("%d\n",n-ans); } }

Compiler output:
a.cc:1:18: warning: extra tokens at end of #include directive
    1 | #include<cstdio> #define fo(i,a,b) for(int i=a;i<=b;i++) using namespace std; const int maxn=2e5+5; int n,a[maxn],num[maxn]; int ans,cov[maxn]; void ADD(int x) { if (x<=0) return; if (++cov[x]==1) ans++; } void DEC(int x) { if (x<=0) return; if (--cov[x]==0) ans--; } int m; int main() { scanf("%d %d",&n,&m); fo(i,1,n) { scanf("%d",&a[i]); num[a[i]]++; ADD(a[i]-num[a[i]]+1); } while (m--) { int x,y; scanf("%d %d",&x,&y); DEC(a[x]-num[a[x]]+1); num[a[x]]--; num[y]++; ADD(y-num[y]+1); a[x]=y; printf("%d\n",n-ans); } }
      |                  ^
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++

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

map<long long, long long> ccount;
long long N, M;
long long A[200005];
long long NUM[200005];
long long X[200005];
long long Y[200005];
bool paint[200005];

int main(){
	cin >> N >> M;
	for(long long i = 0; i < N; i++){
		cin >> A[i];
		NUM[A[i]]++;
	}
	for(long long i = 0; i < M; i++){
		cin >> X[i] >> Y[i];
	}
	if(N > 200 || M > 200){
		return 1;
	}

	for(long long i = 0; i < M; i++){
		long long from = A[X[i] - 1];
		long long to = Y[i];
		NUM[from]--;
		NUM[to]++;
		A[X[i] - 1] = to;

		long long ans = 0;

		for(long long j = 0; j <= N; j++){
			paint[j] = false;
		}

		for(long long j = N; j >= 0; j--){
			if(j != N && paint[j] == false){
				ans++;
			}
			if(NUM[j] > 0){
				for(long long k = 0; k < NUM[j]; k++){
					paint[max(0, j - 1 - k)] = true;
				}
			}
		}
		cout << ans << endl;
	}
}


Compiler output:
a.cc: In function 'int main()':
a.cc:44:50: error: no matching function for call to 'max(int, long long int)'
   44 |                                         paint[max(0, j - 1 - k)] = true;
      |                                               ~~~^~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:44:50: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   44 |                                         paint[max(0, j - 1 - k)] = true;
      |                                               ~~~^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:44:50: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   44 |                                         paint[max(0, j - 1 - k)] = true;
      |                                               ~~~^~~~~~~~~~~~~~
Language: C++

#include <cmath>
#include <vector>
#include <map>
#include <set>
#include <functional>
#include <queue>
#include <iostream>
#include <string.h>
#include <iomanip>
#include <algorithm>
#include <functional>
#include <cstdint>
#include <climits>
#include <unordered_set>
#include <sstream>

using namespace std;

#define ll long long int
#define pii pair<ll,ll>

struct sequence_
{
    static const int N=2e5+10;
    int n,m,h[N],b[N],a[N];
    
    sequence_(int n_, int m_) : n(n_), m(m_){}
    
    bool add(int x, int index)
    {
        a[index] = x;
        int y=x-h[x];
        y=max(1,y);
        b[y]++;
        h[x]++;
        if(b[y] > 1)
        {
            return true;
        }
        return false;
    }
    
    int swap(int x, int y)
    {
        int ans = 0;
        h[a[x]]--;
        int z=a[x]-h[a[x]];
        z=max(z,1);
        b[z]--;
        if(b[z]==0) ans++;
        z=y-h[y];
        z=max(z,1);
        if(b[z]==0) ans--;
        b[z]++;
        h[y]++;
        a[x]=y;
        return ans;
    }
};


int main()
{
    int n, m;
    scanf("%d%d",&n,&m);
    sequence_ s(n,m);
    int ans=0;
    for(int i=1;i<=n;i++)
    {
        int x;
        scanf("%d",&x);
        if(s.add(x))
        {
            ans++;
        }
    }
    while(m--)
    {
        int x,y;
        scanf("%d%d",&x,&y);
        ans += s.swap(x, y);
        printf("%d\n",ans);
    }
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:72:17: error: no matching function for call to 'sequence_::add(int&)'
   72 |         if(s.add(x))
      |            ~~~~~^~~
a.cc:29:10: note: candidate: 'bool sequence_::add(int, int)'
   29 |     bool add(int x, int index)
      |          ^~~
a.cc:29:10: note:   candidate expects 2 arguments, 1 provided
Language: C++

#include <iostream>
#include <string>
using namespace std;

int cnt[200001];
int cover[200001];
int val[200001];

int main()
{
	memset(cnt, 0, sizeof(cnt));
	memset(cover, 0, sizeof(cover));

	int N, M;
	cin >> N >> M;
	for (int i = 1; i <= N; i++) {
		int a;
		cin >> a;
		val[i] = a;
		cnt[a]++;
		int pos =  a - cnt[a] + 1;
		if (pos > 0) cover[pos]++;
	}
	int exs = 0;
	for (int i = 1; i <= N; i++) {
		if (cover[i] == 0) exs++;
	}
	for (int i = 1; i <= M; i++) {
		int X, Y;
		cin >> X >> Y;
		int minus = val[X];
		int plus  = Y;
		val[X] = Y;
		int pos = minus - cnt[minus] + 1;
		if (pos > 0) {
			if (cover[pos] == 1) exs++;
			cover[pos]--;
		}
		cnt[minus]--;

		cnt[plus]++;
		pos = plus - cnt[plus] + 1;
		if (pos > 0) {
			if (cover[pos] == 0) exs--;
			cover[pos]++;
		}
		cout << exs << endl;
	}

	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: 'memset' was not declared in this scope
   11 |         memset(cnt, 0, sizeof(cnt));
      |         ^~~~~~
a.cc:2:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    1 | #include <iostream>
  +++ |+#include <cstring>
    2 | #include <string>
Language: C++

#include <bits/stdc++.h>
#define M 100005
#define N 1005
#define ll long long
#define oo 1000000000
#define mod 5557
using namespace std;
int A[M],B[M],ans,n,m,dp[M],cnt[M],V[M][M],sum[M],t;
void check(int &a,int b){
	if(a==-1||a>b)a=b;
}
int main(){
	int i,j,a,b;
	cin>>n>>m;
	for(i=1;i<=n;i++){
		scanf("%d",&A[i]);
		cnt[A[i]]++;
	}
	for(i=1;i<=n;i++){
		for(j=min(cnt[i],i)-1;j>=0;j--){
			if(!sum[i-j])++t;
			sum[i-j]++;
		}
	}
	for(i=1;i<=m;i++){
		scanf("%d %d",&a,&b);
		cnt[A[a]]--;
		if(A[a]-cnt[A[a]]>0&&!(--sum[A[a]-cnt[A[a]]]))--t;
		A[a]=b;
		if(A[a]-cnt[A[a]]>0&&!sum[A[a]-cnt[A[a]]]++)++t;
		++cnt[A[a]];
		printf("%d\n",n-t);
	}
	return 0;
}
	
	

Compiler output:
/tmp/ccVUlZqd.o: in function `main':
a.cc:(.text+0x146): relocation truncated to fit: R_X86_64_PC32 against symbol `sum' defined in .bss section in /tmp/ccVUlZqd.o
a.cc:(.text+0x153): relocation truncated to fit: R_X86_64_PC32 against symbol `t' defined in .bss section in /tmp/ccVUlZqd.o
a.cc:(.text+0x15c): relocation truncated to fit: R_X86_64_PC32 against symbol `t' defined in .bss section in /tmp/ccVUlZqd.o
a.cc:(.text+0x174): relocation truncated to fit: R_X86_64_PC32 against symbol `sum' defined in .bss section in /tmp/ccVUlZqd.o
a.cc:(.text+0x18b): relocation truncated to fit: R_X86_64_PC32 against symbol `sum' defined in .bss section in /tmp/ccVUlZqd.o
a.cc:(.text+0x2c4): relocation truncated to fit: R_X86_64_PC32 against symbol `sum' defined in .bss section in /tmp/ccVUlZqd.o
a.cc:(.text+0x2dc): relocation truncated to fit: R_X86_64_PC32 against symbol `sum' defined in .bss section in /tmp/ccVUlZqd.o
a.cc:(.text+0x2f0): relocation truncated to fit: R_X86_64_PC32 against symbol `sum' defined in .bss section in /tmp/ccVUlZqd.o
a.cc:(.text+0x30d): relocation truncated to fit: R_X86_64_PC32 against symbol `t' defined in .bss section in /tmp/ccVUlZqd.o
a.cc:(.text+0x316): relocation truncated to fit: R_X86_64_PC32 against symbol `t' defined in .bss section in /tmp/ccVUlZqd.o
a.cc:(.text+0x3cf): additional relocation overflows omitted from the output
collect2: error: ld returned 1 exit status
Language: C++

    #include <bits/stdc++.h>
     
    using namespace std;
     
    const int N = 1234567;
     
    int a[N], cnt[N], b[N];
     
    int main() {
      int n, tt;
      scanf("%d %d", &n, &tt);
      int empty = n;
      for (int i = 1; i <= n; i++) {
        scanf("%d", a + i);
        cnt[a[i]]++;
        int pos = a[i] - cnt[a[i]] + 1;
        if (pos >= 1) {
          if (b[pos] == 0) {
            empty--;
          }
          b[pos]++;
        }
      }
      while (tt--) {
        int x, y;
        scanf("%d %d", &x, &y);
        {
          int pos = a[x] - cnt[a[x]] + 1;
          if (pos >= 1) {
            b[posa]--;
            if (b[pos] == 0) {
              empty++;
            }
          }
        }
        cnt[a[x]]--;
        a[x] = y;
        cnt[a[x]]++;
        {
          int pos = a[x] - cnt[a[x]] + 1;
          if (pos >= 1) {
            if (b[pos] == 0) {
              empty--;
            }
            b[pos]++;
          }
        }
        printf("%d\n", empty);
      }
      return 0;
    }

Compiler output:
a.cc: In function 'int main()':
a.cc:30:15: error: 'posa' was not declared in this scope; did you mean 'pos'?
   30 |             b[posa]--;
      |               ^~~~
      |               pos
Language: C++

  if(p>0 && br[p]==0) ++emp;
}
int main(){
  cin>>n>>m;
  emp=n;
  REP(i,n){
    scanf("%d",&ar[i]);
    add(ar[i]);
  }
  REP(hoge,m){
    int x,y;scanf("%d%d",&x,&y);--x;
    rem(ar[x]);
    add(y);
    ar[x]=y;
    printf("%d\n",emp);
  }


  return 0;
}





Compiler output:
a.cc:1:3: error: expected unqualified-id before 'if'
    1 |   if(p>0 && br[p]==0) ++emp;
      |   ^~
a.cc:2:1: error: expected declaration before '}' token
    2 | }
      | ^
a.cc: In function 'int main()':
a.cc:4:3: error: 'cin' was not declared in this scope
    4 |   cin>>n>>m;
      |   ^~~
a.cc:4:8: error: 'n' was not declared in this scope
    4 |   cin>>n>>m;
      |        ^
a.cc:4:11: error: 'm' was not declared in this scope
    4 |   cin>>n>>m;
      |           ^
a.cc:5:3: error: 'emp' was not declared in this scope
    5 |   emp=n;
      |   ^~~
a.cc:6:7: error: 'i' was not declared in this scope
    6 |   REP(i,n){
      |       ^
a.cc:6:3: error: 'REP' was not declared in this scope
    6 |   REP(i,n){
      |   ^~~
a.cc:10:7: error: 'hoge' was not declared in this scope
   10 |   REP(hoge,m){
      |       ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#include <vector>
#define vi vector<int>
#define pb push_back
const int N = 100005;
int FREQ[N], FREQ2[N];
int dp[N][N];
const int INF = 100000000;
int A[N];
int ans(int n){
    memset(FREQ, 0, sizeof FREQ);
    for(int  i = 1; i <= n; i++) FREQ[A[i]]++;
    for(int i = 1; i <= n; i++) FREQ2[i] = FREQ2[i - 1] + FREQ[i];
    for(int i = 0; i <= n; i++) for(int j = 0; j <= n; j++) dp[i][j] = INF;
    dp[0][0] = 0;
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= n; j++){
            for(int k = 1; k <= i && k <= j; k++){
                dp[i][j] = min(dp[i][j], dp[i - k][j - k] + abs(FREQ[i] - k) + FREQ2[i - 1] - FREQ2[i - k]);
            }
        }
    }
    return dp[n][n] / 2;
}
int main(){

    int n, m;
    cin>> n >> m;
    for(int i = 1; i <= n; i++) cin >> A[i];
    cerr << ans(n) << endl;
    for(int i = 1; i <= m; i++){
        int x, y;
        cin >> x >> y;
        A[x] = y;
        cout << ans(n) << endl;
    }
}

Compiler output:
/tmp/ccdUVmUX.o: in function `ans(int)':
a.cc:(.text+0x3d): relocation truncated to fit: R_X86_64_PC32 against symbol `A' defined in .bss section in /tmp/ccdUVmUX.o
/tmp/ccdUVmUX.o: in function `main':
a.cc:(.text+0x2f1): relocation truncated to fit: R_X86_64_PC32 against symbol `A' defined in .bss section in /tmp/ccdUVmUX.o
a.cc:(.text+0x388): relocation truncated to fit: R_X86_64_PC32 against symbol `A' defined in .bss section in /tmp/ccdUVmUX.o
collect2: error: ld returned 1 exit status
Language: C++

#include <bits/stdc++.h>
using namespace std;
#include <vector>
#define vi vector<int>
#define pb push_back
const int N = 100005;
int freq[N], freq2[N];
int dp[N][N];
const int INF = 100000000;
int A[N];
int ans(int n){
    memset(freq, 0, sizeof freq);
    for(int  i = 1; i <= n; i++) freq[A[i]]++;
    for(int i = 1; i <= n; i++) freq2[i] = freq2[i - 1] + freq[i];
    for(int i = 0; i <= n; i++) for(int j = 0; j <= n; j++) dp[i][j] = INF;
    dp[0][0] = 0;
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= n; j++){
            for(int k = 1; k <= i && k <= j; k++){
                dp[i][j] = min(dp[i][j], dp[i - k][j - k] + abs(freq[i] - k) + freq2[i - 1] - freq2[i - k]);
            }
        }
    }
    return dp[n][n] / 2;
}
int main(){

    int n, m;
    cin>> n >> m;
    for(int i = 1; i <= n; i++) cin >> A[i];
    cerr << ans(n) << endl;
    for(int i = 1; i <= m; i++){
        int x, y;
        cin >> x >> y;
        A[x] = y;
        cout << ans(n) << endl;
    }
}

Compiler output:
/tmp/ccWwlofg.o: in function `ans(int)':
a.cc:(.text+0x3d): relocation truncated to fit: R_X86_64_PC32 against symbol `A' defined in .bss section in /tmp/ccWwlofg.o
/tmp/ccWwlofg.o: in function `main':
a.cc:(.text+0x2f1): relocation truncated to fit: R_X86_64_PC32 against symbol `A' defined in .bss section in /tmp/ccWwlofg.o
a.cc:(.text+0x388): relocation truncated to fit: R_X86_64_PC32 against symbol `A' defined in .bss section in /tmp/ccWwlofg.o
collect2: error: ld returned 1 exit status
Language: C++

#include <iostream>
using namespace std;
#include <vector>
#define vi vector<int>
#define pb push_back
const int N = 100005;
int freq[N], freq2[N];
int dp[N][N];
const int INF = 100000000;
int A[N];
int ans(int n){
    memset(freq, 0, sizeof freq);
    for(int  i = 1; i <= n; i++) freq[A[i]]++;
    for(int i = 1; i <= n; i++) freq2[i] = freq2[i - 1] + freq[i];
    for(int i = 0; i <= n; i++) for(int j = 0; j <= n; j++) dp[i][j] = INF;
    dp[0][0] = 0;
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= n; j++){
            // add for  i - 1, ... , i - k + 1
            // freq2[i - 1] - freq2[i - k]
            for(int k = 1; k <= i && k <= j; k++){
                dp[i][j] = min(dp[i][j], dp[i - k][j - k] + abs(freq[i] - k) + freq2[i - 1] - freq2[i - k]);
                if(i == 5 && j == 5){
//                    cerr << k << " " << dp[i - k][j - k] +  freq2[i - 1] - freq2[i - k] << " " << abs(freq[i] - k) << endl;
                }
            }
        }
    }
//    cerr << dp[2][2] << " " << dp[3][3] << " " << dp[4][4] << " " << dp[5][5] << endl;
    return dp[n][n] / 2;
}
int main(){

    int n, m;
    cin>> n >> m;
    for(int i = 1; i <= n; i++) cin >> A[i];
    cerr << ans(n) << endl;
    for(int i = 1; i <= m; i++){
        int x, y;
        cin >> x >> y;
        A[x] = y;
        cout << ans(n) << endl;
    }
}

Compiler output:
a.cc: In function 'int ans(int)':
a.cc:12:5: error: 'memset' was not declared in this scope
   12 |     memset(freq, 0, sizeof freq);
      |     ^~~~~~
a.cc:4:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    3 | #include <vector>
  +++ |+#include <cstring>
    4 | #define vi vector<int>
Language: C++

#include <bits/stdc++.h>
#define ll long long
#define INF 1000000005
#define MOD 1000000007
#define EPS 1e-10
#define rep(i,n) for(int i=0;i<(int)n;++i)
#define each(a, b) for(auto (a): (b))
#define all(v) (v).begin(),(v).end()
#define fi first
#define se second
#define pb push_back
#define show(x) cout <<#x<<" = "<<(x)<<endl
#define spair(p) cout <<#p<<": "<<p.fi<<" "<<p.se<<endl
#define svec(v) cout<<#v<<":";rep(kbrni,v.size())cout<<" "<<v[kbrni];cout<<endl
#define sset(s) cout<<#s<<":";each(kbrni,s)cout <<" "<<kbrni;cout<<endl

using namespace std;

typedef pair<int,int>P;

const int MAX_N = 205;


int main()
{
    int n,m;
    cin >> n >> m;
    vector<int> a(n);
    rep(i,n){
        cin >> a[i];
    }
    rep(i,m){
        int x,y;
        cin >> x >> y;
        vector<int> c(n+1,0);
        a[x-1] = y;
        rep(j,n){
            c[a[j]]++;
        }
        int inc = 0;
        int dec = 0;
        int ans = 0;
        for(int j=n;j>=1;j--){
            if(c[j] == 0){
                if(dec > 0){
                    dec--;
                }else{
                    inc++;
                    ans++;
                }
            }else if(c[j] == 1){
                c[j]--;
            }else{
                // if(i == 3 && j == 1){
                //     show(diff);
                // }
                rep(i,c[j]-1){
                    if(j-i-1 < 1){
                        break;
                    }
                    if(c[j-i-1] > 0){
                        if(inc >= c[j-i-1]){
                            inc -= c[j-i-1];
                        }else{
                            dec = c[j-i-1] - inc;
                            inc = 0:
                            ans += dec;
                        }
                    }
                }
                j -= c[j]-1;
            }
        }
        cout << ans << "\n";
    }
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:66:36: error: expected ';' before ':' token
   66 |                             inc = 0:
      |                                    ^
      |                                    ;
Language: C++

#include <bits/stdc++.h>

#define MaxN 200005
#define INF 2140000000
#define eps 1e-9
#define MOD 1000000007
#define pi 3.1415926535897932384626433832795

using namespace std;

int N,M,fr[MaxN],v[MaxN],P,X;

int main()
{
    cin>>N>>M;
    if(N>300)
        return 0;
    for(int i=1;i<=N;i++)
        cin>>v[i],fr[v[i]]++;
    fr[0]=1;
    for(int i=1;i<=M;i++)
    {
        cin>>P>>X;
        fr[v[P]]--;
        fr[X]++;
        v[P]=X;
        int Poz=0,Neg=0,pos1=N,pos2=N-1;
        while(fr[pos1]==0)
            pos1--;
        pos2=pos1-1;
        while(pos2>=0)
        {
            if(fr[pos2]==0)
                pos2--;
            else
            {
                if(pos1-pos2>fr[pos1])
                    Neg+=pos1-pos2-fr[pos1];
                else Poz+=fr[pos1]-pos1+pos2;
                pos1=pos2;
                pos2--;
            }
        }
        cout<<max(Poz+Neg)<<endl;
    }
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:44:18: error: no matching function for call to 'max(int)'
   44 |         cout<<max(Poz+Neg)<<endl;
      |               ~~~^~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 1 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   template argument deduction/substitution failed:
a.cc:44:18: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   44 |         cout<<max(Poz+Neg)<<endl;
      |               ~~~^~~~~~~~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   candidate expects 2 arguments, 1 provided
Language: C++

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

#define rep(i, N) for (int i = 0; i < (int)N; i++)
const ll MOD = pow(10,9)+7;
const ll LLINF = pow(2,61)-1;
const int INF = pow(2,30)-1;

vector<vector<ll>> adj;
int dfs(int n=0, int p=-1) {
  int result = 0;
  for (auto x: adj[n]) {
    if (x==p) continue;
    result ^= dfs(x,n);
  }
  if (p!=-1) result++;
  cout << n << " " << p << " " << result << endl;
  return result;
}

int main() {
  int N; cin >> N;
  adj.resize(N);
  rep(i,N-1) {
    // ll x, y; cin >> x >> y; x--; y--;
    adj[x].push_back(y);
    adj[y].push_back(x);
  }
  string result = dfs() ? "Alice" : "Bob";
  cout << result << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:28:9: error: 'x' was not declared in this scope
   28 |     adj[x].push_back(y);
      |         ^
a.cc:28:22: error: 'y' was not declared in this scope
   28 |     adj[x].push_back(y);
      |                      ^
Language: Java

import java.util.Scanner;
public class Program
{
	public static void main(String[] args) {
		Scanner sc =new Scanner(System.in);
		int n = sc.nextInt();
		n--;
		int a[][] = new int[2][n];
		for(int i = 0;i < n;i++){
		    for(int j = 0;j < 2;j++){
		        a[j][i] = sc.nextInt();
		    }
		}
		sc.close();
		int counter = 0;
		int counter_ = 0;
		for(int j = 0;j < n;j++){
			if(a[0][j] == 1 || a[1][j]==1){counter++;}
			else {counter_++;}
		}
		if(counter == 1){System.out.println("Alice");}
		else if ((counter % 2 == 1 && counter_ % 2 == 0)||(counter % 2 == 0 && counter_ % 2 == 1)){System.out.println("Alice");}
		else {System.out.println("Bob");}
	}
}

Compiler output:
Main.java:2: error: class Program is public, should be declared in a file named Program.java
public class Program
       ^
1 error
Language: C++

#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>
#include <string>

using ll = long long;

using namespace std;

vector<int> G[100010];
int childs[100010]={0}, par[100010];

int grundy(int i=0) {
    int ans = 0;
    for (auto g:G[i]) {
        if (childs[g]) continue;
        childs[i]++;
        par[g] = i;
        if (i > 0) ans += grundy(g);
        else ans ^= grundy(g);
    }
    if (i > 0) {
        if (child[i] > 1) ans = 0;
        ans++;
    }
    return ans;
}

int main() {
    int n;
    cin >> n;
    for (int i=1, x, y; i<n; i++) {
        cin >> x >> y;
        x--; y--;
        G[x].push_back(y);
        G[y].push_back(x);
    }
    cout << (grundy() ? "Alice" : "Bob") << '\n';
    return 0;
}


Compiler output:
a.cc: In function 'int grundy(int)':
a.cc:24:13: error: 'child' was not declared in this scope; did you mean 'childs'?
   24 |         if (child[i] > 1) ans = 0;
      |             ^~~~~
      |             childs
Language: C++

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

const int N=1000010

vector<int> e[N];
int n,sg[N],u,v;

void dfs(int u,int fa)
{
    sg[u]=0;
    for(auto v : e[u])
    {
        if(v==fa)continue;
        dfs(v,u);
        sg[u]^=sg[v]+1;
    }
}

int main()
{
    cin>>n;
    for(int i=1;i<n;++i)
    {
        cin>>u>>v;
        e[u].push_back(v);
        e[v].push_back(u);
    }
    dfs(1,0);
    puts(sg[1]?"Alice":"Bob");
}

Compiler output:
a.cc:6:1: error: expected ',' or ';' before 'vector'
    6 | vector<int> e[N];
      | ^~~~~~
a.cc: In function 'void dfs(int, int)':
a.cc:12:18: error: 'e' was not declared in this scope
   12 |     for(auto v : e[u])
      |                  ^
a.cc: In function 'int main()':
a.cc:26:9: error: 'e' was not declared in this scope
   26 |         e[u].push_back(v);
      |         ^
Language: C++

//Relive your past life.
//Face your demons.
//The past is never dead,it is not even past.
//The memories are not only the key to the past but...also to the future.
//coded in Rusty Lake
#include<cmath>
#include<math.h>
#include<ctype.h>
#include<algorithm>
#include<bitset>
#include<cassert>
#include<cctype>
#include<cerrno>
#include<cfloat>
#include<ciso646>
#include<climits>
#include<clocale>
#include<complex>
#include<csetjmp>
#include<csignal>
#include<cstdarg>
#include<cstddef>
#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<ctime>
#include<cwchar>
#include<cwctype>
#include<deque>
#include<exception>
#include<fstream>
#include<functional>
#include<iomanip>
#include<ios>
#include<iosfwd>
#include<iostream>
#include<istream>
#include<iterator>
#include<limits>
#include<list>
#include<locale>
#include<map>
#include<memory>
#include<new>
#include<numeric>
#include<ostream>
#include<queue>
#include<set>
#include<sstream>
#include<stack>
#include<stdexcept>
#include<streambuf>
#include<string>
#include<typeinfo>
#include<utility>
#include<valarray>
#include<vector>
#include<string.h>
#include<stdlib.h>
#include<stdio.h>
#define ll   long long
#define pb   push_back
#define mp   make_pair
#define orz  1000000007
using namespace std;
int n,a[100005];
vector<int> v[100005];
void dfs(int x,int y){
    for(int i=0;i<v[x].size();++i){
        int z=v[x][i];
        if(y==z) continue;
        dfs(z,x);
        a[x]^=(a[z]+1);
    }
    if(cnt==1)++a[x];
}
int main(){
    scanf("%d",&n);
    for(int i=1;i<n;++i){
        int x,y;
        scanf("%d%d",&x,&y);
        v[x].pb(y),v[y].pb(x);
    }
    dfs(1,0);
    if(a[1])puts("Alice");
    else puts("Bob");
    //system("pause");
    return 0;
}


Compiler output:
a.cc: In function 'void dfs(int, int)':
a.cc:75:8: error: 'cnt' was not declared in this scope; did you mean 'int'?
   75 |     if(cnt==1)++a[x];
      |        ^~~
      |        int
Language: C++

#include <stdio.h>  
#include <algorithm>  
#include <assert.h>
#include <bitset>
#include <cmath>  
#include <complex>  
#include <deque>  
#include <functional>  
#include <iostream>  
#include <limits.h>  
#include <map>  
#include <math.h>  
#include <queue>  
#include <set>  
#include <stdlib.h>  
#include <string.h>  
#include <string>  
#include <time.h>  
#include <unordered_map>  
#include <unordered_set>  
#include <vector>  
#include <chrono>
#include <random>
#include <time.h>
#define ll long long
#define rep2(i,a,b) for(ll i=a;i<=b;++i)
#define rep(i,n) for(ll i=0;i<n;i++)
#define rep3(i,a,b) for(ll i=a;i>=b;i--)
#define REP(e,v) for(auto e:v)
#define pii pair<int,int>
#define pll pair<ll,ll>
#define tii tuple<int,int,int>
#define pq priority_queue<int>
#define pqg priority_queue<int,vector<int>,greater<int>>
#define pb push_back
#define edge(v,a,b) v[a].pb(b);v[b].pb(a);
#define MAX_V 400010
#define vec vector<int>
#define vecll vector<ll>
#define vecpii vector<pii>
#define endl "\n"
#define ALL(c) (c).begin(),(c).end()
using namespace std;
int in() {int x;scanf("%d",&x);return x;}
ll lin() {ll x;scanf("%lld",&x);return x;}

#define INF 1e9+7
#define LLINF 1e18+7
#define N 500000
ll MOD=1e9+7;

vector<vec>G(N);
int dfs(int x,int p){
  int g=0;
  for(auto e:G[x]){
    if(e!=p){
    g^=(dfs(e,x)+1);}
  }
}
main(){
    int n=in();
  rep(i,n-1){
  int a=in(),b=in();
  G[a].pb(b);
  G[b].pb(a);}
  cout<<((dfs(1,0)!=0)?“Alice”:“Bob”);
}



Compiler output:
a.cc:66:24: error: extended character “ is not valid in an identifier
   66 |   cout<<((dfs(1,0)!=0)?“Alice”:“Bob”);
      |                        ^
a.cc:66:24: error: extended character ” is not valid in an identifier
a.cc:66:32: error: extended character “ is not valid in an identifier
   66 |   cout<<((dfs(1,0)!=0)?“Alice”:“Bob”);
      |                                ^
a.cc:66:32: error: extended character ” is not valid in an identifier
a.cc: In function 'int dfs(int, int)':
a.cc:59:1: warning: no return statement in function returning non-void [-Wreturn-type]
   59 | }
      | ^
a.cc: At global scope:
a.cc:60:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   60 | main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:66:24: error: '\U0000201cAlice\U0000201d' was not declared in this scope
   66 |   cout<<((dfs(1,0)!=0)?“Alice”:“Bob”);
      |                        ^~~~~~~
a.cc:66:32: error: '\U0000201cBob\U0000201d' was not declared in this scope
   66 |   cout<<((dfs(1,0)!=0)?“Alice”:“Bob”);
      |                                ^~~~~