criyle/codenet-compile-errors huggingface dataset:
Language: Java

import java.io.*;
import java.util.*;

public class Solution {
  
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int A  = sc.nextInt(), B = sc.nextInt();
    int opt1 = A + A - 1;
    int opt2 = B + B - 1;
    int opt3 = A + B;
    System.out.println(Math.max(opt1, Math.max(opt2, opt3)));
  }
}


Compiler output:
Main.java:4: error: class Solution is public, should be declared in a file named Solution.java
public class Solution {
       ^
1 error
Language: Java

import java.util.Scanner;
public class Main{
  	public static void main (String [] args){
      	Scanner scanner = new Scanner (System.in);
      	int A = scanner.nextInt();
      	int B = scanner.nextInt();
      	int sum = Math.Max(A,B);
      	if (A > B) A++;
        else B++;
      	sum += Math.Max(A,B);
      	System.out.println(sum);
    }
}

Compiler output:
Main.java:7: error: cannot find symbol
      	int sum = Math.Max(A,B);
      	              ^
  symbol:   method Max(int,int)
  location: class Math
Main.java:10: error: cannot find symbol
      	sum += Math.Max(A,B);
      	           ^
  symbol:   method Max(int,int)
  location: class Math
2 errors
Language: Java

import java.util.Arrays;
import java.util.Scanner;
public class AtCoderBeginnerContest124 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc =new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		
		int Twice1 = (A+(A-1));
		int Twice2 = (B+(B-1));
		int Both = A+B;
		
		int[]Array = new int[3];
		Array[0] = Twice1;
		Array[1] = Twice2;
		Array[2] = Both;
		
		Arrays.sort(Array);
		System.out.println(Array[2]);
	}

}


Compiler output:
Main.java:3: error: class AtCoderBeginnerContest124 is public, should be declared in a file named AtCoderBeginnerContest124.java
public class AtCoderBeginnerContest124 {
       ^
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define REP(i, n) for (int i = 0; i < (int)(n); i++)
#define REP2(i, n) for (int i = 1; i <= (int)(n); i++)
#define FOR(i, m, n) for (int i = m; i n; i++)
#define SORT(x) sort(x.begin(), x.end())
#define REVE(x) reverse(x.begin(), x.end())
#define all(x) (x).begin(), (x).end()
struct initon
{
    initon()
    {
        cin.tie(0);
        ios::sync_with_stdio(false);
    };
};
int k=0,n=0, m=0, l=0,a=0, b=0, c=0, d=0,ans=0,ans2=0,x=0,y=0;
string s,t,S;
signed main() {
    cin >> a>>b;
    //cin >> x >> y;
    //cin >> s >> t;
     ans=max(a,b)
     if(ans-1>=min(a,b))cout << ans*2-1
     else cout <<ans+min(a,b);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:18: error: expected ';' before 'if'
   24 |      ans=max(a,b)
      |                  ^
      |                  ;
   25 |      if(ans-1>=min(a,b))cout << ans*2-1
      |      ~~
Language: Java

public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		Scanner sc=new Scanner(System.in);
		int A=sc.nextInt();
		int B=sc.nextInt();

		sc.close();

		if(A==B) {
			System.out.println(A+B);
		}else if(A>B) {
			System.out.println(A+(A-1));
		}else if(A<B) {
			System.out.println(B+(B-1));
		}

	}
}

Compiler output:
Main.java:8: error: cannot find symbol
		Scanner sc=new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class Main
Main.java:8: error: cannot find symbol
		Scanner sc=new Scanner(System.in);
		               ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C

6 6#include <stdio.h>
int main(void){
    int a, b, ans = 0, i;
    
    scanf("%d %d", &a, &b);
    
    for(i = 0; i < 2; i++){
        if(a >= b){
            ans = ans + a;
            a = a - 1;
        }else if(a <= b){
            ans = ans + b;
            b = b - 1;
        }
    }
    printf("%d\n", ans);
    
}


Compiler output:
main.c:1:1: error: expected identifier or '(' before numeric constant
    1 | 6 6#include <stdio.h>
      | ^
main.c:1:4: error: stray '#' in program
    1 | 6 6#include <stdio.h>
      |    ^
Language: C++

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

int main(){
  int a , b ;
  cin >> a >> b ;
 cout << mac({a+a-1,b+b-1,a+b}) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:10: error: 'mac' was not declared in this scope
    7 |  cout << mac({a+a-1,b+b-1,a+b}) << endl;
      |          ^~~
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); ++i)
using namespace std;

int main () {
  int a, b;
  cin >> a >> b;
  int asn = 0;
  rep(i, 2) {
    if (b > a) swap(a, b);
    ans += a;
    a--;
  }
  cout << ans << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:5: error: 'ans' was not declared in this scope; did you mean 'asn'?
   11 |     ans += a;
      |     ^~~
      |     asn
a.cc:14:11: error: 'ans' was not declared in this scope; did you mean 'asn'?
   14 |   cout << ans << endl;
      |           ^~~
      |           asn
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); ++i)
using namespace std;

int main () {
  int a, b;
  cin >> a >> b;
  int asn = 0;
  rep(i, 2) {
    if (b > a) swap(a, b);
    ans += a;
    a--;
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:5: error: 'ans' was not declared in this scope; did you mean 'asn'?
   11 |     ans += a;
      |     ^~~
      |     asn
a.cc:14:11: error: 'ans' was not declared in this scope; did you mean 'asn'?
   14 |   cout << ans << endl;
      |           ^~~
      |           asn
Language: C++

#include<bits/stdc++.h> 
using namespace std; 
#define fast_io ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define F first
#define S second
#define PB push_back
#define MP make_pair
#define forp(i,a,b) for (int i = a; i <b; i++)
#define forn(i,a,b) for (int i = a; i >b; i--)
#define mod 1000000007
#define MAX 50
typedef long long ll;
typedef vector<int> vi;
typedef pair<int,int> pii;


long long int fact(long long int n)
{
  if(n==0 || n==1)
  return 1;
  else
  return (n*fact(n-1)%mod)%mod;
}

int prime(long long int n)
{
  for(int i=2;i<=sqrt(n);i++)
  {
    if(n%i==0)
    {
      return 0;
    }
  }
  return 1;
}

long long int gcd(long long int a,long long int b)
{
  if(a==0)
  return b;
  else
  return gcd(b%a,a);
}

long long int lcm(long long a,long long b)
{
    return (a*b)/gcd(a,b);
}

int check_palin(string s)
{
  string str=s;
  reverse(str.begin(),str.end());
  if(str==s)
  return 1;
  else 
  return 0;
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
            int k,n,z=0,ans=0,start=-1,end=-1,f=0,c=0;
            cin>>n>>k;
            cout<<max(2*n-1,2*k-1,k+n);
            
            
return 0;
}
            
            
            
            

Compiler output:
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: In instantiation of 'constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) [with _Tp = int; _Compare = int]':
a.cc:68:22:   required from here
   68 |             cout<<max(2*n-1,2*k-1,k+n);
      |                   ~~~^~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:306:17: error: '__comp' cannot be used as a function
  306 |       if (__comp(__a, __b))
      |           ~~~~~~^~~~~~~~~~
Language: C

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

int main()
{
    long long n,a,t,i,j,k;
    cin>>n>>a;
    i=(n*2)-1;
    j=(a*2)-1;
    i=max(i,j);
    k=n+a;
    k=max(i,k);
    cout<<k<<endl;
      return 0;
}


Compiler output:
main.c:1:9: fatal error: bits/stdc++.h: No such file or directory
    1 | #include<bits/stdc++.h>
      |         ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include "bits/stdc++.h"

#define MOD 1000000007
#define rep(i, n) for(ll i=0; i < (n); i++)
#define rrep(i, n) for(ll i=(n)-1; i >=0; i--)
#define ALL(v) v.begin(),v.end()
#define rALL(v) v.rbegin(),v.rend()
#define FOR(i, j, k) for(ll i=j;i<k;i++)
#define debug_print(var) cerr << #var << "=" << var <<endl;
#define DUMP(i, v)for(ll i=0;i<v.size();i++)cerr<<v[i]<<" "

using namespace std;
typedef long long int ll;
typedef vector<ll> llvec;
typedef vector<double> dvec;
typedef pair<ll, ll> P;
typedef long double ld;
struct edge{ll x, c;};

ll mod(ll a, ll mod){
  ll res = a%mod;
  if(res<0)res=res + mod;
  return res;
}

ll modpow(ll a, ll n, ll mod){
  ll res=1;
  while(n>0){
    if(n&1) res=res*a%mod;
    a=a*a%mod;
    n>>=1;
  }
  return res;
}

ll modinv(ll a, ll mod){
  return modpow(a, mod-2, mod);
}

ll gcd(ll a, ll b){
  ll r = a%b;
  if(r==0) return b;
  else return gcd(b, a%b);
}

bool is_prime(ll n){
  ll i = 2;
  if(n==1)return false;
  if(n==2)return true;
  bool res = true;
  while(i*i <n){
    if(n%i==0){
      res = false;
    }
    i = i+1;
  }

  //if(i==1)res = false;
  if(n%i==0)res=false;
  return res;
}

struct UnionFind{
  ll N;
  llvec p;
  llvec cnt;
  UnionFind(ll n){
    N = n;
    p=llvec(N);
    cnt=llvec(N, 0);
    rep(i, N){
      p[i] = i;
      cnt[i] = 1;
    }
  }

  void con(ll a, ll b){
    P at = root(a);
    P bt = root(b);
    if(at.second!=bt.second){
      if(at.first>bt.first){
        swap(at, bt);
        swap(a, b);
      }
      p[at.second] = bt.second;
      cnt[bt.second]+=cnt[at.second];
      p[a]=bt.second;
    }
  }

  P root(ll a){
    ll atmp = a;
    ll c=0;
    while(atmp!=p[atmp]){
      atmp = p[atmp];
      c++;
    }
    p[a] = atmp;
    return {c, atmp};
  }

  bool is_con(ll a, ll b){
    P at=root(a);
    P bt=root(b);
    return at.second == bt.second;
  }
  
};

struct dijkstra{
  ll N;
  llvec d;
  vector<vector<edge>> e;
  dijkstra(ll n){
    N = n;
    //d = llvec(N, 1e18);
    e = vector<vector<edge>>(N);
  }

  void add_edge(ll from, ll to, ll cost){
    e[from].push_back({to, cost});
  }

  void run(ll start){
    priority_queue<P, vector<P>, greater<P>> que;
    que.push({0, start});
    d = llvec(N, 1e18);
    d[start]=0;
    while(!que.empty()){
      P q = que.top();que.pop();
      ll dc = q.first;
      ll x = q.second;
      if(dc>d[x]){
        continue;
      }else{
        for(auto ip: e[x]){
          if(d[ip.x]<=d[x]+ip.c){
            continue;
          }else{
            d[ip.x]= d[x]+ip.c;
            que.push({d[ip.x], ip.x});
          }
        }
      }
    }
  }  
};


/**************************************
** A main function starts from here  **
***************************************/
int main(){
  ll A, B, X;
  cin >> A >> B;
  ll tmp = 2*A-1;
  tmp=max(A+B, tmp);
  tmp=max(2*B-1, tmp);
  cout << tmp
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:159:14: error: expected ';' before 'return'
  159 |   cout << tmp
      |              ^
      |              ;
  160 |   return 0;
      |   ~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(int argc, char const *argv[])
{
	// #ifndef ONLINE_JUDGE
 //       // for getting input from input.txt
 //       freopen("input.txt", "r", stdin);
 //       // for writing output to output.txt
 //       freopen("output.txt", "w", stdout);
      #endif
	int a,t=0,b,sum=0;
	cin>>a>>b;
	if(a ==b) {
		cout<<a+b<<"\n";
	}
	else if(b-a == 1 || a-b == 1){
		cout<<a+b<<"\n";
	}
	else{
		if(a-b>2){
			cout<<a+(a-1)<<"\n";
		}
		else if(b-a>2){
			cout<<b+(b-1)<<"\n";
		} 
	}
	return 0;
}

Compiler output:
a.cc:10:8: error: #endif without #if
   10 |       #endif
      |        ^~~~~
Language: C++

#include <bitss/stdc++.h>
using namespace std;
int main(int argc, char const *argv[])
{
	int a,t=0,b,sum=0;
	cin>>a>>b;
	sum = sum + max(a,b);
	t = max(a,b);
	t = t-1;
	sum = sum + max(a,b);
	cout<sum<<"\n";
	return 0;
}

Compiler output:
a.cc:1:10: fatal error: bitss/stdc++.h: No such file or directory
    1 | #include <bitss/stdc++.h>
      |          ^~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<algorithm>//sort,二分探索,など
#include<bitset>//固定長bit集合
#include<cmath>//pow,logなど
#include<complex>//複素数
#include<deque>//両端アクセスのキュー
#include<functional>//sortのgreater
#include<iomanip>//setprecision(浮動小数点の出力の誤差)
#include<iostream>//入出力
#include<iterator>//集合演算(積集合,和集合,差集合など)
#include<map>//map(辞書)
#include<numeric>//iota(整数列の生成),gcdとlcm(c++17)
#include<queue>//キュー
#include<set>//集合
#include<stack>//スタック
#include<string>//文字列
#include<unordered_map>//イテレータあるけど順序保持しないmap
#include<unordered_set>//イテレータあるけど順序保持しないset
#include<utility>//pair
#include<vector>//可変長配列

// vectorの重複削除
// std::sort(test.begin(), test.end());
// test.erase(std::unique(test.begin(), test.end()), test.end());

using namespace std;
using ll = long long;
using P = pair<int, int>; // vector<P> ba(n); みたいな感じですぐ使える ba[i] = P(a, b); make_pairをしなくてもいい
// typedef vector<int> v;
template <class T>ostream &operator<<(ostream &o,const vector<T>&v){o<<"{";for(int i=0;i<(int)v.size();i++)o<<(i>0?", ":"")<<v[i];o<<"}";return o;}
#define debug(v) {cerr<<"\033[1;36m[debug]\033[m "<<#v<<" : "<<v<<endl;}
#define rep(i, c) for(int i = 0; i < int(c); i++)
#define ALL(x) (x).begin(), (x).end() //sort(ALL(obj))みたいな
#define SIZE(x) ((ll)(x).size()) //sizeをsize_tからllに直しておく
#define MAX(x) *max_element(ALL(x)) //最大値
#define pb push_back //
// const int MOD = 1000000007;
// string alpha="ABCDEFGHIJKLMNOPQRSTUVWXYZ";
// printf("%.20f\n", ans); あれ
// const double PI = 3.141592653589793238462643383;

int main() {
  //char in[120];
  int a,b; cin>>a>>b;
  int ans = 0;
  if (a<b) {
    ans += b;
    b--;
  }
  if (a<b) {
    ans += b;
    b--
  }
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:51:8: error: expected ';' before '}' token
   51 |     b--
      |        ^
      |        ;
   52 |   }
      |   ~
Language: Java

import java.util.Scanner;

public class Buttons {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int ans = 0;
		for(int i = 0; i < 2; i++) {
			if(A>B) {
				ans += A;
				A -= 1;
			}else {
				ans += B;
				A -= 1;
			}
			
		}
		System.out.println(ans);
	}

}


Compiler output:
Main.java:3: error: class Buttons is public, should be declared in a file named Buttons.java
public class Buttons {
       ^
1 error
Language: Java

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {
	static void p(String ans) {System.out.println(ans);};
	static void p(int ans) {System.out.println(ans);};
	static void p() {System.out.println();};
	static void p(long ans) {System.out.println(ans);};
	static void p(double ans) {System.out.println(ans);};
	
	private static Scanner sc = new Scanner(System.in);
    public static void main(String[] args) {
        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
    	int a=sc.nextInt();
    	int b=sc.nextInt();
    	if(a==b) {
    		p(a+b);
    	}else {
    		p(Math.max(a, b)*2-1);
    	}
    	
    	
    	
    	
    	
    	//j 106 || //o 111 || //i 105 || //a 97 || 
    	//10 15 9
    	//long T=(long) (Math.pow(26, 2)*10+26*15+9);
    }
    static String nextPermutation(String s) {
		ArrayList<Character> list=new ArrayList<>();
		for(int i=0;i<s.length();i++) {
			list.add(s.charAt(i));
		}
		int pivotPos=-1;
		char pivot=0;
		for(int i=list.size()-2;i>=0;i--) {
			if(list.get(i)<list.get(i+1)) {
				pivotPos=i;
				pivot=list.get(i);
				break;
			}
		}
		if(pivotPos==-1&&pivot==0) {
			return "Final";
		}
		int L=pivotPos+1,R=list.size()-1;
		
		
		
		int minPos=-1;
		char min =Character.MAX_VALUE;
		
		for(int i=R;i>=L;i--) {
			if(pivot<list.get(i)) {
				if(list.get(i)<min) {
					min=list.get(i);
					minPos=i;
				}
			}
		}
		
		Collections.swap(list, pivotPos, minPos);
		Collections.sort(list.subList(L, R+1));
		
		
		StringBuilder sb=new StringBuilder();
		for(int i=0;i<list.size();i++) {
			sb.append(list.get(i));
		}
		return sb.toString();
	}
}

Compiler output:
Main.java:7: error: class Solution is public, should be declared in a file named Solution.java
public class Solution {
       ^
1 error
Language: C++

#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ull = unsigned long long; 
using pii =  pair<int, int>;
using pll =  pair<long long, long long>;
#define rep(i, n) for(int i = 0; i < (n); ++i)
#define all(x) (x).begin(),(x).end()
constexpr char ln =  '\n';
constexpr long long MOD = 1000000007LL;
//constexpr long long MOD = 998244353LL;
template<class T, class U> inline bool chmax(T &a, U b) { if (a < b) { a = b; return true;} return false; }
template<class T, class U> inline bool chmin(T &a, U b) { if (a > b) { a = b; return true;} return false; }
const ll INF = (ll)1e18 + 1;
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

int main() {
    ios::sync_with_stdio(false); cin.tie(nullptr);
    
    int a,b; cin >> a >> b;
    
    if(a>b){
        cout << a*(a-1) << ln;
    }else if(a<b){
        cout << b*(b-1) << ln;
    }else{
        cout << a*b << ln;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:30:2: error: expected '}' at end of input
   30 | }
      |  ^
a.cc:18:12: note: to match this '{'
   18 | int main() {
      |            ^
Language: C++

#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ull = unsigned long long; 
using pii =  pair<int, int>;
using pll =  pair<long long, long long>;
#define rep(i, n) for(int i = 0; i < (n); ++i)
#define all(x) (x).begin(),(x).end()
constexpr char ln =  '\n';
constexpr long long MOD = 1000000007LL;
//constexpr long long MOD = 998244353LL;
template<class T, class U> inline bool chmax(T &a, U b) { if (a < b) { a = b; return true;} return false; }
template<class T, class U> inline bool chmin(T &a, U b) { if (a > b) { a = b; return true;} return false; }
const ll INF = (ll)1e18 + 1;
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

int main() {
    ios::sync_with_stdio(false); cin.tie(nullptr);
    
    int a,b,t; cin >> a >> b;
    int ans = chmax(a,b);
    ans += chmax(a-1, b-1);

    cout << ans << ln;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:19: error: cannot bind non-const lvalue reference of type 'int&' to an rvalue of type 'int'
   23 |     ans += chmax(a-1, b-1);
      |                  ~^~
a.cc:13:49: note:   initializing argument 1 of 'bool chmax(T&, U) [with T = int; U = int]'
   13 | template<class T, class U> inline bool chmax(T &a, U b) { if (a < b) { a = b; return true;} return false; }
      |                                              ~~~^
Language: C++

#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ull = unsigned long long; 
using pii =  pair<int, int>;
using pll =  pair<long long, long long>;
#define rep(i, n) for(int i = 0; i < (n); ++i)
#define all(x) (x).begin(),(x).end()
constexpr char ln =  '\n';
constexpr long long MOD = 1000000007LL;
//constexpr long long MOD = 998244353LL;
template<class T, class U> inline bool chmax(T &a, U b) { if (a < b) { a = b; return true;} return false; }
template<class T, class U> inline bool chmin(T &a, U b) { if (a > b) { a = b; return true;} return false; }
const ll INF = (ll)1e18 + 1;
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

int main() {
    ios::sync_with_stdio(false); cin.tie(nullptr);
    
    int a,b,t; cin >> a >> b;
    ans = chmax(a,b) * chmax(a-1, b-1);

    cout << ans << ln;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:5: error: 'ans' was not declared in this scope; did you mean 'abs'?
   22 |     ans = chmax(a,b) * chmax(a-1, b-1);
      |     ^~~
      |     abs
a.cc:22:31: error: cannot bind non-const lvalue reference of type 'int&' to an rvalue of type 'int'
   22 |     ans = chmax(a,b) * chmax(a-1, b-1);
      |                              ~^~
a.cc:13:49: note:   initializing argument 1 of 'bool chmax(T&, U) [with T = int; U = int]'
   13 | template<class T, class U> inline bool chmax(T &a, U b) { if (a < b) { a = b; return true;} return false; }
      |                                              ~~~^
Language: Java

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        if (a > b){
            System.out.println(2*a - 1);
        }
      else if(a == b){
      		System.out.println(2*a);
      }
        else{
            System.out.println(2*b - 1);
        } 
    }
}

Compiler output:
Main.java:3: error: cannot find symbol
        Scanner sc = new Scanner(System.in);
        ^
  symbol:   class Scanner
  location: class Main
Main.java:3: error: cannot find symbol
        Scanner sc = new Scanner(System.in);
                         ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C++

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

int main(){
  int A,B;
  cin >> A >> B;
  if(A-1>=B){
    cout << A+(A-1) << endl;
  }
  else if(A-1<B){
    cout << A + B << endl;
  }
  else if(A=B){
    cout << A + A - 1 <<endl;
  }
  else if(B-1>=A){
    cout << B+B-1 <<endl:
  }
  else{
    cout << B + A << endl;
  }

}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:25: error: expected ';' before ':' token
   17 |     cout << B+B-1 <<endl:
      |                         ^
      |                         ;
Language: C++

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

int main(){
    int a,b;
    cin >> a,b;

    int c = 0;

    for(int i = 0;i < 1 ;i++){
        if(a <= b)
        c = c + b;
        b = b - 1;
            else{
                 c = c + a;
                 a = a - 1;

            }
           

    }
    
    cout << c << endl;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:13: error: 'else' without a previous 'if'
   14 |             else{
      |             ^~~~
Language: C++

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

int main(){
    int A,B;
    cin >> A >> B;
    int ans = 0;
    ans += max(A,B);
    max(A,B) -= 1;
    ans += max(A,B);
    cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:14: error: assignment of read-only location 'std::max<int>(A, B)'
    9 |     max(A,B) -= 1;
      |     ~~~~~~~~~^~~~
Language: C++

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

int main(){
    int A,B;
    cin >> A >> B;
    int ans = 0;
    ans += max(A,B);
    max(A,B)--;
    ans += max(A,B);
    cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:8: error: decrement of read-only location 'std::max<int>(A, B)'
    9 |     max(A,B)--;
      |     ~~~^~~~~
Language: C++

#include <iostream>
using namespace std;



int main() {

  int A, B;
  cin >> A >> B;
  
  if (A>B) {
    cout << A + A - 1 << endl;
  else if (B>A) {
    cout << B + B - 1 << endl;
  } else {
    cout << A + B << endl;
  }

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:3: error: expected '}' before 'else'
   13 |   else if (B>A) {
      |   ^~~~
a.cc:11:12: note: to match this '{'
   11 |   if (A>B) {
      |            ^
Language: C++

#include<bits/stdc++.h>
#define int long long
#define mod 1000000007
#define trace(x) cerr<<#x<<": "<<x<<" "<<endl
#define tarce(x) cerr<<#x<<": "<<x<<" "<<endl
#define trace2(x, y) cerr<<#x<<": "<<x<<" | "<<#y<<": "<<y<<endl
#define trace3(x, y, z) cerr<<#x<<":" <<x<<" | "<<#y<<": "<<y<<" | "<<#z<<": "<<z<<endl
#define trace4(a, b, c, d) cerr<<#a<<": "<<a<<" | "<<#b<<": "<<b<<" | "<<#c<<": "<<c<<" | "<<#d<<": "<<d<<endl
#define sa(a,n) for(int i =0 ; i<n ; i++) cin>>a[i]
#define max3(a,b,c) max(a,max(b,c))
#define min3(a,b,c) min(a,min(b,c))
#define pb push_back
#define inf 2e18
#define scan() int n; cin>>n ; int a[n+1]; for(int i = 1 ; i<=n ; i++) cin>>a[i]
#define scan2() int n,k; cin>>n>>k ; int a[n+1]; for(int i = 1 ; i<=n ; i++) cin>>a[i]
#define print(a,n) for(int i = 0 ; i < n ; i++) cout<<a[i]<<' '
#define mem(a,v) memset(a,v,sizeof(a))
#define pii pair<int,int>
#define mkp make_pair
using namespace std;
#define N 200005



int32_t main(){
        ios_base::sync_with_stdio(false);
        cin.tie(NULL);
        cout.tie(NULL);

        int a,b;
        cin >> a >> b;
        int ans=max{a+b,2*a-1,2*b-1};
        cout << ans;
        

}

Compiler output:
a.cc: In function 'int32_t main()':
a.cc:32:17: error: cannot resolve overloaded function 'max' based on conversion to type 'long long int'
   32 |         int ans=max{a+b,2*a-1,2*b-1};
      |                 ^~~
Language: C++

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

int main() {
  int A,B;
  cin>>A>>B;
  int x;
  if(A>B){
    x=2*A-1;
  }
  else if(A<B){
    x=2*B-1;
  }
  else{
    x=2*A
  }
  cout<<x<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:10: error: expected ';' before '}' token
   15 |     x=2*A
      |          ^
      |          ;
   16 |   }
      |   ~
Language: C++

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

int main() {
  int A,B;
  cin>>A>>B;
  int x;
  if(A>B){
    x=2*A-1;
  }
  else if(A<B){
    x=2*B-1;
  }
  else{
    x=2*A
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:10: error: expected ';' before '}' token
   15 |     x=2*A
      |          ^
      |          ;
   16 |   }
      |   ~
Language: C

#include<stdio.h>
#include<string.h>

int main(){
  int cnt=0;
  char S[100000];
  scanf("%s",S);
  for(int i = 1;i < strlen(S)-1;i++){
    if(S[i-1] == S[i] ){
      cnt ++;
      if(s[i] == "0"){        
        strcpy(S[i],"1");  
      }else{
        strcpy(S[i],"0");
      }
    }
  }
  printf("%d",cnt);
  
}


Compiler output:
main.c: In function 'main':
main.c:11:10: error: 's' undeclared (first use in this function)
   11 |       if(s[i] == "0"){
      |          ^
main.c:11:10: note: each undeclared identifier is reported only once for each function it appears in
main.c:12:17: error: passing argument 1 of 'strcpy' makes pointer from integer without a cast [-Wint-conversion]
   12 |         strcpy(S[i],"1");
      |                ~^~~
      |                 |
      |                 char
In file included from main.c:2:
/usr/include/string.h:141:39: note: expected 'char * restrict' but argument is of type 'char'
  141 | extern char *strcpy (char *__restrict __dest, const char *__restrict __src)
      |                      ~~~~~~~~~~~~~~~~~^~~~~~
main.c:14:17: error: passing argument 1 of 'strcpy' makes pointer from integer without a cast [-Wint-conversion]
   14 |         strcpy(S[i],"0");
      |                ~^~~
      |                 |
      |                 char
/usr/include/string.h:141:39: note: expected 'char * restrict' but argument is of type 'char'
  141 | extern char *strcpy (char *__restrict __dest, const char *__restrict __src)
      |                      ~~~~~~~~~~~~~~~~~^~~~~~
Language: C

#include<stdio.h>
int main(){
  int A,B,max = 0;
  scanf("%d%d",&A,&B);
  for(int i =0;i<2;i++){
    if(A>B){
      max += A;
      A-=1;
    }else{
      max+=B;
      b-=1;
    }
  }
  printf("%d",max);
}
      
  
    


Compiler output:
main.c: In function 'main':
main.c:11:7: error: 'b' undeclared (first use in this function)
   11 |       b-=1;
      |       ^
main.c:11:7: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

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

int main(){

    int x,y,r=0;

    cin >> x >> y;

    if(x > y){
        r += x;
        x--;
    } else {
        r += y
        y--;
    }

    if(x > y){
        r += x;
        x--;
    } else {
        r += y
        y--;
    }

    cout << r << endl;

    

}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:15: error: expected ';' before 'y'
   15 |         r += y
      |               ^
      |               ;
   16 |         y--;
      |         ~      
a.cc:23:15: error: expected ';' before 'y'
   23 |         r += y
      |               ^
      |               ;
   24 |         y--;
      |         ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
 int A,B;
  cin >> A >> B;
  if(A > B){
    cout << A * 2 - 1 << endl;
  }
if( A < B){
cout << B * 2 - 1 << endl;
  if(A == B){
    cout << A * 2 << endl;
  }
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:15:2: error: expected '}' at end of input
   15 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

//testcode.cpp
#include <iostream>
#include <utility>
using namespace std;


int main()
{
  int a, b, c;
  cin >> a >> b;
  if (a < b)
  {
    swap(a,b);
  }

  if (a == b)
  {
    c == 2a;
  }
  
  else 
  {
    c == 2a - 1;
  }
  cout << c ;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:10: error: unable to find numeric literal operator 'operator""a'
   18 |     c == 2a;
      |          ^~
a.cc:23:10: error: unable to find numeric literal operator 'operator""a'
   23 |     c == 2a - 1;
      |          ^~
Language: C++

//testcode.cpp
#include <iostream>
#include <utility>
using namespace std;


int main()
{
  int a , b , c;
  cin >> a >> b;
  if (a < b)
  {
    swap(a,b);
  }

  if (a == b)
  {
    c = 2a;
  }
  
  else 
  {
    c = 2a - 1;
  }
  cout << c ;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:9: error: unable to find numeric literal operator 'operator""a'
   18 |     c = 2a;
      |         ^~
a.cc:23:9: error: unable to find numeric literal operator 'operator""a'
   23 |     c = 2a - 1;
      |         ^~
Language: C++

//testcode.cpp
#include <iostream>
#include <utility>
using namespace std;


int main()
{
  int a , b ;
  cin >> a >> b;
  if (a < b)
  {
    swap(a,b);
  }

  if (a == b)
  {
    c = 2a;
  }
  
  else 
  {
    c = 2a - 1;
  }
  cout << c << endl;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:5: error: 'c' was not declared in this scope
   18 |     c = 2a;
      |     ^
a.cc:18:9: error: unable to find numeric literal operator 'operator""a'
   18 |     c = 2a;
      |         ^~
a.cc:23:5: error: 'c' was not declared in this scope
   23 |     c = 2a - 1;
      |     ^
a.cc:23:9: error: unable to find numeric literal operator 'operator""a'
   23 |     c = 2a - 1;
      |         ^~
a.cc:25:11: error: 'c' was not declared in this scope
   25 |   cout << c << endl;
      |           ^
Language: C++

//testcode.cpp
#include <iostream>
#include <utility>
using namespace std;


int main()
{
  int a , b ;
  cin >> a >> b;
  if (a < b)
  {
    swap(a,b);
  }

  if (a == b)
  {
    c = 2a;
  }
  
  else 
  {
    c = 2a - 1;
  }
  cout << c ;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:5: error: 'c' was not declared in this scope
   18 |     c = 2a;
      |     ^
a.cc:18:9: error: unable to find numeric literal operator 'operator""a'
   18 |     c = 2a;
      |         ^~
a.cc:23:5: error: 'c' was not declared in this scope
   23 |     c = 2a - 1;
      |     ^
a.cc:23:9: error: unable to find numeric literal operator 'operator""a'
   23 |     c = 2a - 1;
      |         ^~
a.cc:25:11: error: 'c' was not declared in this scope
   25 |   cout << c ;
      |           ^
Language: C++

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

int main() {
  int A,B;
  cin >>A>>B;
  int sum =max(A,B);
  if(A == B)
    sum += max(A,B)
  if(A > B)
    sum += max(A-1,B)
  if(A <B)
    sum += max(A,B-1)
    
  cout << sum << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:20: error: expected ';' before 'if'
    9 |     sum += max(A,B)
      |                    ^
      |                    ;
   10 |   if(A > B)
      |   ~~
Language: C++

# include < bits / stdc ++. h >
using namespace std ;
int main () {
int A , B ; cin >> A >> B ;
int ans ;
if ( A > B ) {
ans = A + (A -1);
}
else if (B > A ) {
ans = B + (B -1);
}
else {
ans = A + B ;
}
cout << ans << endl ;
}


Compiler output:
a.cc:1:11: fatal error:  bits / stdc ++. h : No such file or directory
    1 | # include < bits / stdc ++. h >
      |           ^~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

import java.util.*;
import java.io.*;

public class Main {
	
	public static void main(String[] args) throws IOException {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		System.out.println(Math.max(a-1,b) + a);
	}
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.*;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:2:1: error: 'import' does not name a type
    2 | import java.io.*;
      | ^~~~~~
a.cc:2:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:4:1: error: expected unqualified-id before 'public'
    4 | public class Main {
      | ^~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
int A,B;
  cin>>A>>B;
  int max=max(A,B);
  if(A=B)
    cout<<2*max<<endl;
  else
    cout<<2*max-1<<endl;

return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:14: error: 'max' cannot be used as a function
    6 |   int max=max(A,B);
      |           ~~~^~~~~
Language: Java

package maratonas;

import java.util.Scanner;

public class Maratonas {

    public static void main(String[] args) {
        Scanner t = new Scanner(System.in);
        int a = t.nextInt();
        int b = t.nextInt();
        int sum = 0; 
        if (a>=b){
            sum+=a;
            a--;
        } else {
            sum+=b;
            b--;
        }
        if (a>=b){
            sum+=a;
            a--;
        } else {
            sum+=b;
            b--;
        }
        System.out.println(sum);
    }
}

Compiler output:
Main.java:5: error: class Maratonas is public, should be declared in a file named Maratonas.java
public class Maratonas {
       ^
1 error
Language: Java

import java.util.Scanner;

public class Maratonas {

    public static void main(String[] args) {
        Scanner t = new Scanner(System.in);
        int a = t.nextInt();
        int b = t.nextInt();
        int sum = 0; 
        if (a>=b){
            sum+=a;
            a--;
        } else {
            sum+=b;
            b--;
        }
        if (a>=b){
            sum+=a;
            a--;
        } else {
            sum+=b;
            b--;
        }
        System.out.println(sum);
    }
}


Compiler output:
Main.java:3: error: class Maratonas is public, should be declared in a file named Maratonas.java
public class Maratonas {
       ^
1 error
Language: C

#include<stdio.h>

int main(){
	int A,B;
	int anser;

	scanf("%d%d",&A,&B);

	if(A>B){
		anser=A+(A-1);
	}
	if(A<B){
		anser=B+(B-1);
	}
	if(ans1==ans2){
		anser=A+B;
	}
	printf("%d",anser );
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:15:12: error: 'ans1' undeclared (first use in this function)
   15 |         if(ans1==ans2){
      |            ^~~~
main.c:15:12: note: each undeclared identifier is reported only once for each function it appears in
main.c:15:18: error: 'ans2' undeclared (first use in this function)
   15 |         if(ans1==ans2){
      |                  ^~~~
Language: C++

#include <iostream>
using namespace std;

int main(){
    int a, b;
    int i;
    
    int c = 0;
    
    
    cin>>a;
    cin>>b;
    
    for ( i = 0, i < 2, i++ ){
    
        if ( a > b ){
            c = c + a;
            a--;
        }
        else {
            c = c + b;
            b--;
        }
    }

    cout<<c<<endl;


    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:28: error: expected ';' before ')' token
   14 |     for ( i = 0, i < 2, i++ ){
      |                            ^~
      |                            ;
a.cc:29:5: error: expected primary-expression before 'return'
   29 |     return 0;
      |     ^~~~~~
a.cc:26:19: error: expected ')' before 'return'
   26 |     cout<<c<<endl;
      |                   ^
      |                   )
......
   29 |     return 0;
      |     ~~~~~~         
a.cc:14:9: note: to match this '('
   14 |     for ( i = 0, i < 2, i++ ){
      |         ^
Language: C++

#include <iostream>
using namespace std;

int main(){
    int a, b;
    int c = 0;
    
    cin>>a;
    cin>>b;
    
    for ( int i = 0, i < 2, i++ ){
    
        if ( a > b ){
            c = c + a;
            a--;
        }
        else {
            c = c + b;
            b--;
        }
    }

    cout<<c<<endl;


    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:23: error: expected ';' before '<' token
   11 |     for ( int i = 0, i < 2, i++ ){
      |                       ^~
      |                       ;
a.cc:11:24: error: expected primary-expression before '<' token
   11 |     for ( int i = 0, i < 2, i++ ){
      |                        ^
a.cc:11:32: error: expected ';' before ')' token
   11 |     for ( int i = 0, i < 2, i++ ){
      |                                ^~
      |                                ;
Language: C++

#include <iostream>
using namespace std;

int main(){
    int a, b;
    int c = 0;
    
    cin>>a;
    cin>>b;
    
    for( int i = 0, i < 2, i++ ){
    
        if ( a > b ){
            c = a;
            a--;
        }
        else {
            c = b;
            b--
        }
    }

    cout<<c<<endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:22: error: expected ';' before '<' token
   11 |     for( int i = 0, i < 2, i++ ){
      |                      ^~
      |                      ;
a.cc:11:23: error: expected primary-expression before '<' token
   11 |     for( int i = 0, i < 2, i++ ){
      |                       ^
a.cc:11:31: error: expected ';' before ')' token
   11 |     for( int i = 0, i < 2, i++ ){
      |                               ^~
      |                               ;
a.cc:19:16: error: expected ';' before '}' token
   19 |             b--
      |                ^
      |                ;
   20 |         }
      |         ~
Language: C++

#include <stdlib.h>
#include <stdio.h>
#include <iostream.h>


int main(){
    int a, b;
    int c = 0;
    
    cin>>a;
    cin>>b;
    
    for( int i = 0, i < 2, i++ ){
    
        if ( a > b ){
            c = a;
            a--;
        }
        else {
            c = b;
            b--
        }
    }

    cout<<c<<endl;

}


Compiler output:
a.cc:3:10: fatal error: iostream.h: No such file or directory
    3 | #include <iostream.h>
      |          ^~~~~~~~~~~~
compilation terminated.
Language: Java

public class Main {

	public static void main(String[] args) {
		int a, b, fim=0;
		Scanner scanner = new Scanner(System.in);

		a = scanner.nextInt();
		b = scanner.nextInt();
		
		for(int i = 0; i < 2; i++) {
			if(a > b) {
				fim += a;
				a--;
			}else if(b > a) {
				fim += b;
				b--;
			}else if(b == a) {
				fim += a;
				a--;
			}
		}
		System.out.println(fim);
	}
}


Compiler output:
Main.java:5: error: cannot find symbol
		Scanner scanner = new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class Main
Main.java:5: error: cannot find symbol
		Scanner scanner = new Scanner(System.in);
		                      ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C++

#include <iostream>

using namespace std;

int main() {
    ios::sync_with_stdio(false);

    int a, b;
    cin >> a >> b;

    if (a > b) {
        cout << a + (a-1) << endl;
    }

    else if (a == b) {
        cou << a + b << endl;
    }
    else {
        cout << b + (b-1) << endl;
    }
    
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:9: error: 'cou' was not declared in this scope
   16 |         cou << a + b << endl;
      |         ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
int A,B;
  cin>>A>>B,a;
  a=max(max(A+A-1,B+B-1),A+B);
  cout<<a<<endl;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:13: error: 'a' was not declared in this scope
    5 |   cin>>A>>B,a;
      |             ^
Language: C++

A, B = [int(i) for i input().split(' ')]

def f():
	res = 0
	if A > B and A - 1 > B:
		res += A + A - 1
    elif B > A and B - 1 > A:
		res += B + B - 1
	else:
		res = A + B
    return res
f()

Compiler output:
a.cc:1:1: error: 'A' does not name a type
    1 | A, B = [int(i) for i input().split(' ')]
      | ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i = 0; i < (int) n; i++)
using ll = long long;
template <class T>
using vt = vector<T>;
using vvi = vector<vector<int>>;

void svtr(vector<int> &a){
  sort(a.begin(),a.end());
  reverse(a.begin(),a.end());
}

int main() {
  int a,b;
  cin >> a >> b;

  cout << max({x*2-1,x+y,y*2-1});
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:16: error: 'x' was not declared in this scope
   18 |   cout << max({x*2-1,x+y,y*2-1});
      |                ^
a.cc:18:24: error: 'y' was not declared in this scope
   18 |   cout << max({x*2-1,x+y,y*2-1});
      |                        ^
a.cc:18:14: error: no matching function for call to 'max(<brace-enclosed initializer list>)'
   18 |   cout << max({x*2-1,x+y,y*2-1});
      |           ~~~^~~~~~~~~~~~~~~~~~~
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:
/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<iostream>
using namespace std;

int main(){
    int a,b;
    cin >> a >> b;
    int c = a+b;
    a = 2*a-1;
    b = 2*b-1;

    cout << max({a,b,c}) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:16: error: no matching function for call to 'max(<brace-enclosed initializer list>)'
   11 |     cout << max({a,b,c}) << endl;
      |             ~~~^~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 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
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i = 0;i<n;i++)


int main() {
    int a,b;
    cin >>a>>b;
    cout << max(a+b,2*a-1,2*b-1) <<endl;
}


Compiler output:
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: In instantiation of 'constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) [with _Tp = int; _Compare = int]':
a.cc:9:16:   required from here
    9 |     cout << max(a+b,2*a-1,2*b-1) <<endl;
      |             ~~~^~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:306:17: error: '__comp' cannot be used as a function
  306 |       if (__comp(__a, __b))
      |           ~~~~~~^~~~~~~~~~
Language: C++

def main():
    a, b = map(int, input().split())
    print(max(a+a-1, a+b, b+b-1))

if __name__ == '__main__':
    main()

Compiler output:
a.cc:5:16: warning: multi-character literal with 8 characters exceeds 'int' size of 4 bytes
    5 | if __name__ == '__main__':
      |                ^~~~~~~~~~
a.cc:1:1: error: 'def' does not name a type
    1 | def main():
      | ^~~
Language: C

#include<stdio.h>
int main(void){
  int a,b,i,ans=0;
  scanf("%d%d",&a,&b);
  for(i=0;i<2;i++){
    if(a>b){
      ans+=a;
      a--;
    }
    else{
      ans+=b;
      b--;
    }
    printf("%d",ans);
    return 0;
  }

Compiler output:
main.c: In function 'main':
main.c:16:3: error: expected declaration or statement at end of input
   16 |   }
      |   ^
Language: C++

#include<iostream>
using namespace std;
int main()
{int a,b;
 cin>>a>>b;
 if(a<b){cout<<b+b-1};
 if(b<a){cout<<a+a-1};
 else {cout<<a+b};
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:21: error: expected ';' before '}' token
    6 |  if(a<b){cout<<b+b-1};
      |                     ^
      |                     ;
a.cc:7:21: error: expected ';' before '}' token
    7 |  if(b<a){cout<<a+a-1};
      |                     ^
      |                     ;
a.cc:8:2: error: 'else' without a previous 'if'
    8 |  else {cout<<a+b};
      |  ^~~~
a.cc:8:17: error: expected ';' before '}' token
    8 |  else {cout<<a+b};
      |                 ^
      |                 ;
Language: C++

import java.util.*;

public class Main {
    public static void main(String args[]) {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int ans =0;
        if (a > b) {
            ans += a;
            a--;
        } else {
            ans += b;
            b--;
        }
        if (a > b) {
            ans += a;
            a--;
        } else {
            ans += b;
            b--;
        }
        
        System.out.println(ans);
    }
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.*;
      | ^~~~~~
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 a,b;
  cin >> a >> b;
  cout << max({(2*a-1),(a+b),(2*b-1)} << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:38: error: expected ')' before '<<' token
    7 |   cout << max({(2*a-1),(a+b),(2*b-1)} << endl;
      |              ~                       ^~~
      |                                      )