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

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

int main () {
  int a = 0 , b = 0 ;
  int w , h ;
  cin >> w >> h ;
  for (int i = 0 ; i < w ; i++ ) {
    for (int j = 0 ; j < h ; j++ ) {
      string a ;
      cin >> a ;
      if ( a == "snuke" ) {
        a = i ; b = j ;
      }
    }
  }
  vector<char> line ;
  line = {'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'}
  cout << line.at(i-1) << j << endl ;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:115: error: expected ';' before 'cout'
   18 |   line = {'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'}
      |                                                                                                                   ^
      |                                                                                                                   ;
   19 |   cout << line.at(i-1) << j << endl ;
      |   ~~~~
Language: C++

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

int main(){
  int h, w;
  string s;
  int ansi, ansj;
  
  cin >> h >> w;
  for ( int i = 0; i < h; i++ ){
    for ( int j = 0; j < w; j++){
      cin >> s;
      if ( s == "snuke" ){
        ansi = i;
        ansj = j;
      }
    }
  }
  char c = 'A' + ansj
  cout << c << ansi + 1 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:3: error: expected ',' or ';' before 'cout'
   21 |   cout << c << ansi + 1 << endl;
      |   ^~~~
Language: C++

#include <stdio.h>
#include <string>
#include <iostream>
#include <map>
#include <algorithm>
using namespace std;

int main(void){
    char ans1;
    int ans2
    int h,w;
    cin >> h >> w;
    string str[h][w],temp;
    for(int i=0; i<h; i++){
        for(int j=0; j<w; j++){
            cin >> temp;
            if(temp=="snuke"){
                ans1='A'+j;
                ans2=1+i;
            }
        }
    }
    cout << ans1 << ans2 << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:5: error: expected initializer before 'int'
   11 |     int h,w;
      |     ^~~
a.cc:12:12: error: 'h' was not declared in this scope
   12 |     cin >> h >> w;
      |            ^
a.cc:12:17: error: 'w' was not declared in this scope
   12 |     cin >> h >> w;
      |                 ^
a.cc:19:17: error: 'ans2' was not declared in this scope; did you mean 'ans1'?
   19 |                 ans2=1+i;
      |                 ^~~~
      |                 ans1
a.cc:23:21: error: 'ans2' was not declared in this scope; did you mean 'ans1'?
   23 |     cout << ans1 << ans2 << endl;
      |                     ^~~~
      |                     ans1
Language: C++

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

int main(){
  int h, w;
  cin >> h >> w;
  
  int c, r;
  
  for(int i=0;i<h;++i){
    for(int j=0;j<w;++j){
      string s;
      cin >> s;
      if(s == "snuke"){
        c = j;
        r = i;
      }
    }
  }
  
  cout << (char)('A'+c) << j << endl;
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:28: error: 'j' was not declared in this scope
   21 |   cout << (char)('A'+c) << j << endl;
      |                            ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int h, w;
  cin >> h >> w;
  string c[h][w];
  for(int i = 0;i < h;i++){
    for(int j = 0;j < w;j++){
      cin >> s[i][j];
      if(s[i][j] == "snuke"){
        cout << 'A' + j << i + 1 << endl;
        return 0;
      }
    }
  }
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:14: error: 's' was not declared in this scope
    9 |       cin >> s[i][j];
      |              ^
Language: C++

#include <iostream>
#include <string>
int main() {
	int H, W;
	std::string S[30][30];
char str[26] = { 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z' };
	
	std::cin >> H >> W;
	char str[26] = { 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z' };
	for (int i = 0; i < H; i++)
		for (int j = 0; j < W; j++)
			std::cin >> S[i][j];
 
	for (int i = 0; i < H; i++)
		for (int j = 0; j < W; j++)
			if (S[i][j] == "snuke") {
				std::cout << str[j] << i << std::endl;
				return 0;
			}
}

Compiler output:
a.cc:13:1: error: extended character   is not valid in an identifier
   13 |  
      | ^
a.cc: In function 'int main()':
a.cc:9:14: error: redeclaration of 'char str [26]'
    9 |         char str[26] = { 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z' };
      |              ^~~
a.cc:6:6: note: 'char str [26]' previously declared here
    6 | char str[26] = { 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z' };
      |      ^~~
a.cc:13:1: error: '\U000000a0' was not declared in this scope
   13 |  
      | ^
a.cc:14:25: error: 'i' was not declared in this scope
   14 |         for (int i = 0; i < H; i++)
      |                         ^
a.cc:15:33: error: 'j' was not declared in this scope
   15 |                 for (int j = 0; j < W; j++)
      |                                 ^
Language: C++

#include <iostream>
#include <string>
int main() {
	int H, W;
	std::string S[30][30];
	std::cin >> H >> W;
	char str[26] = { 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z' };
	for (int i = 0; i < H; i++)
		for (int j = 0; j < W; j++)
			std::cin >> S[i][j];
 
	for (int i = 0; i < H; i++)
		for (int j = 0; j < W; j++)
			if (S[i][j] == "snuke") {
				std::cout << str[j] << i << std::endl;
				return 0;
			}
}

Compiler output:
a.cc:11:1: error: extended character   is not valid in an identifier
   11 |  
      | ^
a.cc: In function 'int main()':
a.cc:11:1: error: '\U000000a0' was not declared in this scope
   11 |  
      | ^
a.cc:12:25: error: 'i' was not declared in this scope
   12 |         for (int i = 0; i < H; i++)
      |                         ^
a.cc:13:33: error: 'j' was not declared in this scope
   13 |                 for (int j = 0; j < W; j++)
      |                                 ^
Language: C++

#include <iostream>
#include <string>
int main() {
	int H, W;
	std::string S[30][30];
	std::cin >> H >> W;
	char str[25] = { 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z' };
	for (int i = 0; i < H; i++)
		for (int j = 0; j < W; j++)
			std::cin >> S[i][j];

	for (int i = 0; i < H; i++)
		for (int j = 0; j < W; j++)
			if (S[i][j] == "snuke") {
				std::cout << str[j] << i << std::endl;
				return 0;
			}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:130: error: too many initializers for 'char [25]'
    7 |         char str[25] = { 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z' };
      |                                                                                                                                  ^
Language: C++

h,w = map(int, input().split())
for i in range(h):
    s = input().split()
    for j in range(w):
        if s[j] == "snuke":
            print("{}{}".format(chr(ord('A')+j), i+1))

Compiler output:
a.cc:1:1: error: 'h' does not name a type
    1 | h,w = map(int, input().split())
      | ^
Language: C++

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


int main(){
	int h,w;
	string s;
	cin >> h >> w;
	for(int i=1;i<=h;i++){
		for(int j=0;j<w;j++){
			cin >> s;
			if(s=="snuke"){
				cout << ''A'+j << i << endl;
			}
		}
	}
	return 0;
}


Compiler output:
a.cc:13:41: error: empty character constant
   13 |                                 cout << ''A'+j << i << endl;
      |                                         ^~~
a.cc:13:44: warning: missing terminating ' character
   13 |                                 cout << ''A'+j << i << endl;
      |                                            ^
a.cc:13:44: error: missing terminating ' character
   13 |                                 cout << ''A'+j << i << endl;
      |                                            ^~~~~~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:13:41: error: unable to find character literal operator 'operator""A' with 'char' argument
   13 |                                 cout << ''A'+j << i << endl;
      |                                         ^~~
Language: C++

#include <stdio.h>

int main(void)
{
	char name[][];
	int i,j;
	int gyou;
	int retu;
	int atari_g,atari_r;

	printf("行と列をスペースを空けて入力せよ。\n");
	scanf("%d %d",&gyou,&retu);

	if(gyou<1 || retu>26){
		pritnf("もう一回入力してください\n");
		scanf("%d %d",&gyou,&retu);
	}

	//配列の行の入力
	for(i=1;i<=gyou;i++){
		for(j=1; j<=retu;j++){
			scanf("%s",&name[gyou][retu]);
		}
	}

	

	//snukeの検索
	for(i=1;i<=gyou;i++){
		for(j=1; j<=retu;j++){	
			if("snuke" == name[gyou][retu]){
				atari_g = gyou;
				atari_r = retu;
			}
		}
	}
	//表示
	printf("%d %d",&atari_g,&atari_r);

	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:14: error: declaration of 'name' as multidimensional array must have bounds for all dimensions except the first
    5 |         char name[][];
      |              ^~~~
a.cc:15:17: error: 'pritnf' was not declared in this scope; did you mean 'printf'?
   15 |                 pritnf("もう一回入力してください\n");
      |                 ^~~~~~
      |                 printf
a.cc:22:37: error: 'name' was not declared in this scope; did you mean 'rename'?
   22 |                         scanf("%s",&name[gyou][retu]);
      |                                     ^~~~
      |                                     rename
a.cc:31:39: error: 'name' was not declared in this scope; did you mean 'rename'?
   31 |                         if("snuke" == name[gyou][retu]){
      |                                       ^~~~
      |                                       rename
Language: Java

import java.util.Scanner;

public class Snuke {

    public static void main(String[] args) {
        Snuke sn = new Snuke();
        Scanner sc = new Scanner(System.in);

        int col = sc.nextInt();
        int row = sc.nextInt();

        for(int i = 0; i < col;i++){
            for(int j = 0 ;j < row;j++){
                if(sc.next().equals("snuke")){
                    System.out.println();
                    System.out.println(sn.alpha(j+1)+(i+1));
                }

            }
        }


    }

    public String alpha(int a){

        switch(a){
        case 1:
            return "A";
        case 2:
            return "B";
        case 3:
            return "C";
        case 4:
            return "D";
        case 5:
            return "E";
        case 6:
            return "F";
        case 7:
            return "G";
        case 8:
            return "H";
        case 9:
            return "I";
        case 10:
            return "J";
        case 11:
            return "K";
        case 12:
            return "L";
        case 13:
            return "M";
        case 14:
            return "N";
        case 15:
            return "O";
        case 16:
            return "P";
        case 17:
            return "Q";
        case 18:
            return "R";
        case 19:
            return "S";
        case 20:
            return "T";
        case 21:
            return "U";
        case 22:
            return "V";
        case 23:
            return "W";
        case 24:
            return "X";
        case 25:
            return "Y";
        case 26:
            return "Z";

        }
        return null;
    }
}

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

import java.util.Scanner;

public class Snuke {

    public static void main(String[] args) {
        Snuke sn = new Snuke();
        Scanner sc = new Scanner(System.in);

        int col = sc.nextInt();
        int row = sc.nextInt();

        for(int i = 0; i < col;i++){
            for(int j = 0 ;j < row;j++){
                if(sc.next().equals("snuke")){
                    System.out.println();
                    System.out.println(sn.alpha(j+1)+(i+1));
                }

            }
        }


    }

    public String alpha(int a){

        switch(a){
        case 1:
            return "A";
        case 2:
            return "B";
        case 3:
            return "C";
        case 4:
            return "D";
        case 5:
            return "E";
        case 6:
            return "F";
        case 7:
            return "G";
        case 8:
            return "H";
        case 9:
            return "I";
        case 10:
            return "J";
        case 11:
            return "K";
        case 12:
            return "L";
        case 13:
            return "M";
        case 14:
            return "N";
        case 15:
            return "O";
        case 16:
            return "P";
        case 17:
            return "Q";
        case 18:
            return "R";
        case 19:
            return "S";
        case 20:
            return "T";
        case 21:
            return "U";
        case 22:
            return "V";
        case 23:
            return "W";
        case 24:
            return "X";
        case 25:
            return "Y";
        case 26:
            return "Z";

        }
        return null;
    }
}


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

#include<iostream>
using namespace std;
int main()
{
    // 整数の入力
    int a,b;
    cin >> a >> b;
	
	int i,j;
	string s;
	string s1 = "snuke";
	
	for(i=0;i<a;i++){
		for(j=0;j<b;j++){
			cin >> s;
			if(strcmp(s,s1)==0)break;
		}
	}
    // 出力
	
    cout << 'A'+i << j << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:28: error: 'strcmp' was not declared in this scope
   16 |                         if(strcmp(s,s1)==0)break;
      |                            ^~~~~~
a.cc:2:1: note: 'strcmp' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    1 | #include<iostream>
  +++ |+#include <cstring>
    2 | using namespace std;
Language: C++

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

int main(){
  int h,w;
  char m[6];

  scanf(" %d %d",&h,&w);

  for(int i=1;i<=h;i++){
    for(int j=0;j<w;j++){
      scanf(" %s",m);
      if(strcmp(m,"snuke")==0){
        char a='A'+j;
        cout << a << i << endl;
      }
    }
  }

  return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:10: error: 'strcmp' was not declared in this scope
   16 |       if(strcmp(m,"snuke")==0){
      |          ^~~~~~
a.cc:4:1: note: 'strcmp' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    3 | #include<algorithm>
  +++ |+#include <cstring>
    4 | #include<string>
Language: C++

h,w = gets.split.map(&:to_i)

h.times{|i|
    d = gets.chomp.split
    j = d.index("snuke")
    if j
        printf "%c%d\n",65+j,i+1
        exit
    end
}



Compiler output:
a.cc:1:1: error: 'h' does not name a type
    1 | h,w = gets.split.map(&:to_i)
      | ^
Language: C++


#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <climits>
#include <cfloat>
#include <map>
#include <utility>
#include <set>
#include <iostream>
#include <memory>
#include <string>
#include <vector>
#include <algorithm>
#include <functional>
#include <sstream>
#include <complex>
#include <stack>
#include <queue>
using namespace std;

int h, w;

int main(void)
{
	scanf("%d %d", &h, &w);
	for (int i = 0; i < h; ++i)
	{
		for (int j = 0; j < w; ++j)
		{
			char str[10];
			scanf("%s", str);
			if (strcmp(str, "snuke") == 0)
			{
				printf("%c",'A' + j);
				printf("%d\n", i + 1);
			}
		}
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:33:29: error: 'strcmp' was not declared in this scope
   33 |                         if (strcmp(str, "snuke") == 0)
      |                             ^~~~~~
a.cc:20:1: note: 'strcmp' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
   19 | #include <queue>
  +++ |+#include <cstring>
   20 | using namespace std;
Language: C++

#include "bits/stdc++.h"

#define debug(x) cout<<#x<<": "<<x<<endl
#define rep(i,n) for (int i=0;i<(n);i++)
#define FOR(i,a,b) for (int i=(a);i<=(b);i++)
#define all(a) (a).begin(),(a).end()
using namespace std;
typedef vector<int> VI;
typedef vector<vector<int>> VVI;
typedef long long ll;


void solve() {
#ifdef _WIN32
	istream &cin = ifstream("input.txt");
#endif

	int h, w;
	string s;
	cin >> h >> w;
	rep(i, h) {
		rep(j, w) {
			cin >> s;
			if (s == "snuke") {
				cout << (char)('A' + j) << i + 1 << endl;
			}
		}
	}

}




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


	solve();
#ifdef _WIN32
	system("PAUSE");
#endif
	return 0;
}#include "bits/stdc++.h"

#define debug(x) cout<<#x<<": "<<x<<endl
#define rep(i,n) for (int i=0;i<(n);i++)
#define FOR(i,a,b) for (int i=(a);i<=(b);i++)
#define all(a) (a).begin(),(a).end()
using namespace std;
typedef vector<int> VI;
typedef vector<vector<int>> VVI;
typedef long long ll;


void solve() {
#ifdef _WIN32
	istream &cin = ifstream("input.txt");
#endif

	int h, w;
	string s;
	cin >> h >> w;
	rep(i, h) {
		rep(j, w) {
			cin >> s;
			if (s == "snuke") {
				cout << (char)('A' + j) << i + 1 << endl;
			}
		}
	}

}




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


	solve();
#ifdef _WIN32
	system("PAUSE");
#endif
	return 0;
}

Compiler output:
a.cc:45:2: error: stray '#' in program
   45 | }#include "bits/stdc++.h"
      |  ^
a.cc:45:3: error: 'include' does not name a type
   45 | }#include "bits/stdc++.h"
      |   ^~~~~~~
a.cc:57:6: error: redefinition of 'void solve()'
   57 | void solve() {
      |      ^~~~~
a.cc:13:6: note: 'void solve()' previously defined here
   13 | void solve() {
      |      ^~~~~
a.cc:79:5: error: redefinition of 'int main()'
   79 | int main() {
      |     ^~~~
a.cc:35:5: note: 'int main()' previously defined here
   35 | int main() {
      |     ^~~~
Language: C

#include <stdio.h>
int main(){
  nong int i;
  long int n;
  long int a;
  long int sum=0;
  scanf("%ld",&n);
  for(i=1;i<=n;i++){
    a=sum;
    if((a+i)==n){
      printf("%ld\n",i);
      break;
    }
    if((n-(a+i))>=i+1){
      printf("%ld\n",i);
      sum+=i;
    }
  }
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:3:3: error: 'nong' undeclared (first use in this function)
    3 |   nong int i;
      |   ^~~~
main.c:3:3: note: each undeclared identifier is reported only once for each function it appears in
main.c:3:7: error: expected ';' before 'int'
    3 |   nong int i;
      |       ^~~~
      |       ;
main.c:8:7: error: 'i' undeclared (first use in this function)
    8 |   for(i=1;i<=n;i++){
      |       ^
Language: C++

n = int(input())
ans = []
for i in range(1, n+1):
  if n - i >= i+1 or n - i == 0:
    ans.append(i)
    n -= i
for i in range(len(ans)):
  print(ans[i])

Compiler output:
a.cc:1:1: error: 'n' does not name a type
    1 | n = int(input())
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define rep(i, n) for (ll i = 0; i < n; ++i)
ll dx[4] = { 0, 1, 0, -1 };
ll dy[4] = { 1, 0, -1, 0 };
const ll INF = LLONG_MAX;
const ll MOD = 1e9 + 7;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    ll N;
    cin >> N;
    set<int> st;
    for (int i = 1;; i++) {
        sum += i;
        st.insert(i);
        if (sum >= N) {
            int diff = sum - N;
            if (diff != 0) {
                st.erase(st.find(diff));
            }
            for (auto num : st) {
                cout << num << endl;
            }
            return 0;
        }
    }
    cout << cnt << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:9: error: 'sum' was not declared in this scope
   18 |         sum += i;
      |         ^~~
a.cc:31:13: error: 'cnt' was not declared in this scope; did you mean 'int'?
   31 |     cout << cnt << endl;
      |             ^~~
      |             int
Language: C++

#include <iostream>
#include <algorithm>
#include <bits/stdc++.h>
 
using namespace std;
 
int main (){
  
  long long int a;
 
  
  
  cin >>a ;
  
  for(long long int i=1;(i+1)*(i+2)<=2*a;i++){
    
    cout << i<< endl;
  }
      int b=i;
  if(a-(b-1)*(b-2)/2 !=0){
      cout << a-(b-1)*(b-2)/2 <<  endl;
      
      return 0;
  }
  else{
    cout << b+1 << endl;
    return 0;
  }
    
  
}
      


Compiler output:
a.cc: In function 'int main()':
a.cc:19:13: error: 'i' was not declared in this scope
   19 |       int b=i;
      |             ^
Language: C++

#include <iostream>
#include <algorithm>
#include <bits/stdc++.h>
 
using namespace std;
 
int main (){
  
  long long int a;
 
  
  
  cin >>a ;
  
  for(long long int i=0;i*(i+1)<2*a;i++){
    
    cout << i<< endl;
  }
      
      cout << a-(b-1)*(b-2)/2 <<  endl;
      
      return 0;
    
  
}
      


Compiler output:
a.cc: In function 'int main()':
a.cc:20:18: error: 'b' was not declared in this scope
   20 |       cout << a-(b-1)*(b-2)/2 <<  endl;
      |                  ^
Language: C++

#include <iostream>
#include <algorithm>
#include <bits/stdc++.h>
 
using namespace std;
 
int main (){
  
  long long int a;
 
  
  
  cin >>a ;
  
  for(int i=0;i*i<4*a;i++){
    
    if(i*(i+1)/2 > a){
      long int b  =i
        
      for(int i=1;i<b-1;i++){
        cout << i << endl;
      }
      cout << a-(b-1)*(b-2)/2 <<  endl;
      
      return 0;
    }
  }
}
      

Compiler output:
a.cc: In function 'int main()':
a.cc:20:7: error: expected ',' or ';' before 'for'
   20 |       for(int i=1;i<b-1;i++){
      |       ^~~
a.cc:20:28: error: expected ';' before ')' token
   20 |       for(int i=1;i<b-1;i++){
      |                            ^
      |                            ;
Language: C++

#include <bits/stdc++.h>

using namespace std;

bool isOK(int ma, int n) {
  for (int i = ma; i >= 1; --i) {
    if (n >= i) {
      n -= i;
    }
  }
  return n == 0;
}

int main() {
  int n;
  cin >> n;
  int left = 0, right = n;
  int ma = n;
  while (right - left > 1) {
    int mid = left + (right - left) / 2;
    if (isOK(mid, n))
      right = mid;
    ma = mid;
    else left = mid;
  }
  for (int i = ma; i >= 1; --i) {
    if (n >= i) {
      n -= i;
      cout << i << endl;
    }
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:5: error: 'else' without a previous 'if'
   24 |     else left = mid;
      |     ^~~~
Language: C++

def getN():
    return int(input())
def getNM():
    return map(int, input().split())
def getList():
    return list(map(int, input().split()))

N = getN()
for i in range(10**4):
    if i*(i+1)/2 >= N:
        M = i
        upper =int(M*(M+1)/2)
        break

diff = upper-N
for i in range(M):
    j = i+1
    if j is not diff:
        print(j)



Compiler output:
a.cc:1:1: error: 'def' does not name a type
    1 | def getN():
      | ^~~
Language: C++

#include<cstdio>
int main(void){
int n;
int s=0;
scanf("%d",&n);
for(int i=1;i<n;i++){
if(n-s>2*i){
printf("%d\n",i);
s=s+i;
}
else if(n-s==i){
printf("%d"\n,i);
s=s+i;
}
}
return 0;
}

Compiler output:
a.cc:12:12: error: stray '\' in program
   12 | printf("%d"\n,i);
      |            ^
a.cc: In function 'int main()':
a.cc:12:12: error: expected ')' before 'n'
   12 | printf("%d"\n,i);
      |       ~    ^~
      |            )
Language: C++

#include <iostream>
#include <vector>
using namespace std;
 
int main() {
	int N, i = 1, j;
	vector<long long> NN;
	cin >> N;
 
	while (N >= 0) {
		NN.push_back(i);
		N -= i;
		//cout << i << endl;
		i++;
	}
	for (j = 0; j < i - 1; j++) {
		if (NN[j] != N*-1) {
			cout << NN[j] << endl;
		}
	}
 
	return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:22:18: error: expected '}' at end of input
   22 |         return 0;
      |                  ^
a.cc:5:12: note: to match this '{'
    5 | int main() {
      |            ^
Language: C++

#include <iostream>
#include <string>
#include <cstdio>
#include <string>
#include <cstring>

#define rep(i, n) REP(i, 0, n)
#define REP(i, a, n) for(int i = a ; i < (int)n ; i++)

typedef long long ll;

using namespace std;

int N;
int n=1;
bool memo[2001][2001];
bool visited[2001][2001];

bool solve(int i, int sum){
  
  // すでに来てる
  if(visited[i][sum]) return memo[i][sum];
  visited[i][sum] = true;
  
  if(i > n) return false;

  // 組み合わせができた
  if(i+sum == N){
    printf("%d\n", i);
    return memo[i][sum]=visited[i][sum] = true;
  }

  // 足す
  if(solve(i+1, sum+i)){
    printf("%d\n", i);
    return memo[i][sum] = true;
  }

  // 足さない
  if(solve(i+1, sum)){
    return memo[i][sum] = true;
  }
  
  return false;
}


signed main(){
  scanf("%d", &N);
  vector<int> v;
  
  while(0.5*n*(n+1) <= N) n++;
  fill(memo[0], memo[2000], false);
  fill(visited[0], visited[2000], false);
  solve(1, 0);

}


Compiler output:
a.cc: In function 'int main()':
a.cc:50:3: error: 'vector' was not declared in this scope
   50 |   vector<int> v;
      |   ^~~~~~
a.cc:6:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    5 | #include <cstring>
  +++ |+#include <vector>
    6 | 
a.cc:50:10: error: expected primary-expression before 'int'
   50 |   vector<int> v;
      |          ^~~
Language: C++

#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <vector>
namespace Program
{
    using namespace std;
    class Solver
    {
    private:
        int N;
        vector<int> v;
        bool flg = false;

    public:
        Solver()
        {
            cin.tie(0);
            ios::sync_with_stdio(false);

            cin >> N;
        }
        void Solve()
        {
            v.resize(N);
            f(1, 0, 0);
//            return 0;
        }

        void f(int start, int sum, int num)
            /* start - 次のは start 以降から選ぶ */
            /* sum - 今までの合計は sum */
            /* num - 今までに num 個選んだ */
        {
            int i;

            /* 見つかった */
            int tmp = 0;
            if (sum == N) {
                for (i = 0; i < v.size(); i++)
                {
                    cout << v[i] << "\n";
                    tmp += v[i];
                    if (tmp == N)
                    {
                        flg = true;
                        break;
                    }
                }
                return;
            }

            /* おおきすぎた */
            if (sum > N) return;

            /* まだ足りないから、つぎのを選ぶ */
            for (i = start; i <= N; i++) {
                v[num] = i;
                f(i + 1, sum + v[num], num + 1);
                if (flg) return;
            }
            return;
        }
    };
}

int main()
{
    // メモリリーク検出
    _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF
        | _CRTDBG_DELAY_FREE_MEM_DF
        | _CRTDBG_CHECK_ALWAYS_DF
        | _CRTDBG_LEAK_CHECK_DF);

    // メンバ関数ポインタ取得
    void (Program::Solver::*pSolve)() = &Program::Solver::Solve;

    // コンストラクタ呼び出し
    Program::Solver obj;

    // .*演算子でアクセス
    (obj.*pSolve)();
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:69:20: error: '_CRTDBG_ALLOC_MEM_DF' was not declared in this scope
   69 |     _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF
      |                    ^~~~~~~~~~~~~~~~~~~~
a.cc:70:11: error: '_CRTDBG_DELAY_FREE_MEM_DF' was not declared in this scope
   70 |         | _CRTDBG_DELAY_FREE_MEM_DF
      |           ^~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:71:11: error: '_CRTDBG_CHECK_ALWAYS_DF' was not declared in this scope
   71 |         | _CRTDBG_CHECK_ALWAYS_DF
      |           ^~~~~~~~~~~~~~~~~~~~~~~
a.cc:72:11: error: '_CRTDBG_LEAK_CHECK_DF' was not declared in this scope
   72 |         | _CRTDBG_LEAK_CHECK_DF);
      |           ^~~~~~~~~~~~~~~~~~~~~
a.cc:69:5: error: '_CrtSetDbgFlag' was not declared in this scope
   69 |     _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF
      |     ^~~~~~~~~~~~~~
Language: C++

#include<iostream>
#include<vector>
#include<algorithm>
#include<utility>
#include<string>
#include<cmath>
#include<cstring>
#include<queue>
#include<map>
#include<climits>
#include<set>

#define REP(i, n) for(int i = 0;i < n;i++)
#define REPR(i, n) for(int i = n;i >= 0;i--)
#define FOR(i, m, n) for(int i = m;i < n;i++)
#define FORR(i, m, n) for(int i = m;i >= n;i--)
#define SORT(v, n) sort(v, v+n);
#define VSORT(v) sort(v.begin(), v.end());
#define llong long long
#define pb(a) push_back(a)
using namespace std;
typedef pair<int, int> pii;
typedef long long int ll;
typedef pair<ll,ll> pll;
int dx[4] = {1,0,0,-1};
int dy[4] = {0,1,-1,0};
#define MOD 1000000007
#define ARRAY_MAX 100005

const int INF = 1e9+7;

vector<int> person[ARRAY_MAX];//人の隣接リスト
vector<int> lang[ARRAY_MAX];//言語の隣接リスト
bool person_used[ARRAY_MAX];//人を使ったかどうか
bool lang_used[ARRAY_MAX];//言語を使ったかどうか

void lang_dfs(int lang_now);
void person_dfs(int person_now);


void person_dfs(int person_now){
    //現在見ている言語を話せる人
    person_used[person_now] = true;

    bool all_used = true;
    for(int i = 0;i < n;i++){
        all_used &= person_used[i];
    }
    if(all_used){
        return;
    }

    for(int i = 0;i < person[person_now].size();i++){
        if(lang_used[person[person_now][i]] == true){
            //既にこの言語は調べられている
            continue;
        }
        lang_dfs(person[person_now][i]);
    }
}

void lang_dfs(int lang_now){
    //現在見ている人が話せる言語
    lang_used[lang_now] = true;

    for(int i = 0;i < lang[lang_now].size();i++){
        if(person_used[lang[lang_now][i]] == true){
            continue;
        }
        person_dfs(lang[lang_now][i]);
    }
}




int main(){

    int n,m;
    cin >> n >> m;

    for(int i = 0;i < n;i++){
        int k;
        cin >> k;
        for(int j = 0;j < k;j++){
            int a;
            cin >> a;
            person[i].push_back(a-1);//人iが話せる言語
            lang[a-1].push_back(i);//言語a-1を話せる人の番号
        }
    }

    person_used[0] = true;
    person_dfs(lang[0][0]);
    /*for(int i = 0;i < m;i++){//言語で潜る
        if(lang_used[i] == true){
            //既にその言語が調べられているときは調べない
            continue;
        }
        cout << i << endl;
        lang_used[i] = true;
        for(int j = 0;j < lang[i].size();j++){//言語を話せる人
            if(person_used[lang[i][j]] == false){
                //まだこの人を調べていない
                person_dfs(lang[i][j]);
            }
        }
    }*/

    for(int i = 0;i < n;i++){
        if(person_used[i] == false){
            cout << "NO" << endl;
            return 0;
        }
    }
    cout << "YES" << endl;

    return 0;
}

Compiler output:
a.cc: In function 'void person_dfs(int)':
a.cc:46:23: error: 'n' was not declared in this scope
   46 |     for(int i = 0;i < n;i++){
      |                       ^
Language: C++

#include <bits/stdc++.h>

#define rep(i, n) for (int i = 0; i < (int) (n); i++)
#define reps(i, n, m) for (int i = (int) (n); i < (int) (m); i++)
#define PB push_back

using ll = long long;

using namespace std;

void init();
void solve();
void dfsl(int);

int main()
{
	init();
	solve();
}

struct person {
	vector<int> v;
	bool f;
};

struct lang {
	vector<int> v;
        bool f;
};

vector<person> p;
vector<lang> l;
int N, M;

void init()
{
	cin >> N >> M;
	rep(i, N) {
		person t;
		t.f = false;
		t.v.resize(0);
		p.PB(t);
	}
	rep(i, M) {
		lang t;
		t.v.resize(0);
                t.f = false;
		l.PB(t);
	}
	rep(i, N) {
		int k;
		cin >> k;
		rep(j, k) {
			int t;
			cin >> t;
			t--;
			p[i].v.PB(t);
			l[t].v.PB(i);
		}
	}
}

void dfsp(int x)
{
	if (p[x].f) return;
	p[x].f = true;
	for (int t : p[x].v) {
		dfsl(t);
	}
}

void dfsl(int x)
{
        if (l[x].f) return;
        l[x] = true;
	for (int t : l[x].v) {
		dfsp(t);
	}
}

void solve()
{
	dfsp(0);
	rep(i, N) {
		if (!p[i].f) {
			cout << "NO" << endl;
			return;
		}
	}
	cout << "YES" << endl;
}


Compiler output:
a.cc: In function 'void dfsl(int)':
a.cc:75:16: error: no match for 'operator=' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<lang>, lang>::value_type' {aka 'lang'} and 'bool')
   75 |         l[x] = true;
      |                ^~~~
a.cc:26:8: note: candidate: 'lang& lang::operator=(const lang&)'
   26 | struct lang {
      |        ^~~~
a.cc:26:8: note:   no known conversion for argument 1 from 'bool' to 'const lang&'
a.cc:26:8: note: candidate: 'lang& lang::operator=(lang&&)'
a.cc:26:8: note:   no known conversion for argument 1 from 'bool' to 'lang&&'
Language: C++

#include <bits/stdc++.h>

#define rep(i, n) for (int i = 0; i < (int) (n); i++)
#define reps(i, n, m) for (int i = (int) (n); i < (int) (m); i++)
#define PB push_back

using ll = long long;

using namespace std;

void init();
void solve();

int main()
{
	init();
	solve();
}

struct person {
	vector<int> v;
	bool f;
};

struct lang {
	vector<int> v;
};

vector<person> p;
vector<lang> l;
int N, M;

void init()
{
	cin >> N >> M;
	rep(i, N) {
		person t;
		t.f = false;
		t.v.resize(0);
		p.PB(t);
	}
	rep(i, M) {
		lang t;
		t.v.resize(0);
		l.PB(t);
	}
	rep(i, N) {
		int k;
		cin >> k;
		rep(i, k) {
			int t;
			cin >> t;
			t--;
			p[i].v.PB(t);
			l[t].v.PB(i);
		}
	}
}

void dfsp(int x)
{
	if (p[x].f) return;
	p[x].f = true;
	for (int t : p[x].v) {
		dfsl(t);
	}
}

void dfsl(int x)
{
	for (int t : l[x].v) {
		dfsp(t);
	}
}

void solve()
{
	dfsp(0);
	rep(i, N) {
		if (!p[i].f) {
			cout << "NO" << endl;
			return;
		}
	}
	cout << "YES" << endl;
}


Compiler output:
a.cc: In function 'void dfsp(int)':
a.cc:65:17: error: 'dfsl' was not declared in this scope; did you mean 'ffsl'?
   65 |                 dfsl(t);
      |                 ^~~~
      |                 ffsl
Language: C++

#include <bits/stdc++.h>

#define rep(i, n) for (int i = 0; i < (int) (n); i++)
#define reps(i, n, m) for (int i = (int) (n); i < (int) (m); i++)
#define PB push_back

using ll = long long;

using namespace std;

void init();
void solve();

int main()
{
	init();
	solve();
}

struct person {
	vector<int> v;
	bool f;
};

struct lang {
	vector<int> v;
};

vector<person> p;
vector<lang> l;
int N, M;

void init()
{
	cin >> N >> M;
	rep(i, N) {
		person t;
		t.f = false;
		t.v.resize(0);
		p.PB(t);
	}
	rep(i, M) {
		lang t;
		t.v.resize(0);
		l.PB(t);
	}
	rep(i, N) {
		int k;
		cin >> k;
		rep(i, k) {
			int t;
			cin >> t;
			t--;
			p[i].v.PB(t);
			l[t].v.PB(i);
		}
	}
}

void dfsp(int x)
{
	if (p[x].f) return;
	p[x].f = true;
	for (int t : p[x].v) {
		dfsl(t);
	}
}

void dfsl(int x)
{
	for (int t : l[x].v) {
		dfsp(t);
	}
}

void solve()
{
	dfsp(0);
	rep(i, N) {
		if (!p[x].f) {
			cout << "NO" << endl;
			return;
		}
	}
	cout << "YES" << endl;
}


Compiler output:
a.cc: In function 'void dfsp(int)':
a.cc:65:17: error: 'dfsl' was not declared in this scope; did you mean 'ffsl'?
   65 |                 dfsl(t);
      |                 ^~~~
      |                 ffsl
a.cc: In function 'void solve()':
a.cc:80:24: error: 'x' was not declared in this scope
   80 |                 if (!p[x].f) {
      |                        ^
Language: C++

#include <bits/stdc++.h>

#define rep(i, n) for (int i = 0; i < (int) (n); i++)
#define reps(i, n, m) for (int i = (int) (n); i < (int) (m); i++)
#define PB push_back

using ll = long long;

using namespace std;

void init();
void solve();

int main()
{
	init();
	solve();
}

struct person {
	vector<int> v;
	bool f;
};

struct lang {
	vector<int> v;
};

vector<person> p;
vector<lang> l;
int N, M;

void init()
{
	cin >> N >> M;
	rep(i, N) {
		person t;
		t.f = false;
		t.v.resize(0);
		p.PB(t);
	}
	rep(i, M) {
		lang t;
		t.v.resize(0);
		l.PB(t);
	}
	rep(i, N) {
		int k;
		cin >> k;
		rep(i, k) {
			int t;
			cin >> t;
			t--;
			p[i].v.OB(t);
			l[t].v.OB(i);
		}
	}
}

void dfsp(int x)
{
	if (p[x].f) return;
	p[x].f = true;
	for (int t : p[x].v) {
		dfsl(t);
	}
}

void dfsl(int x)
{
	for (int t : l[x].v) {
		dfsp(t);
	}
}

void solve()
{
	dfsp(0);
	rep(i, N) {
		if (!p[x].f) {
			cout << "NO" << endl;
			return;
		}
	}
	cout << "YES" << endl;
}


Compiler output:
a.cc: In function 'void init()':
a.cc:54:32: error: 'class std::vector<int>' has no member named 'OB'
   54 |                         p[i].v.OB(t);
      |                                ^~
a.cc:55:32: error: 'class std::vector<int>' has no member named 'OB'
   55 |                         l[t].v.OB(i);
      |                                ^~
a.cc: In function 'void dfsp(int)':
a.cc:65:17: error: 'dfsl' was not declared in this scope; did you mean 'ffsl'?
   65 |                 dfsl(t);
      |                 ^~~~
      |                 ffsl
a.cc: In function 'void solve()':
a.cc:80:24: error: 'x' was not declared in this scope
   80 |                 if (!p[x].f) {
      |                        ^
Language: C++

#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>
#include <set>
#include <bitset>
#include <cmath>
#include <string>
#define FI first
#define SE second
#define PF push_front
#define PB push_back
#define PPF pop_front
#define PPB pop_back
#define MA make_pair
#define ll long long
#define PA pair<int,int>
#define VE vector<int>
#define VP vector<PA>
#define FOR(i,a,b) for(int i=a;i<b;i++)
#define ROF(i,a,b) for(int i=b-1;i>=a;i--)
#define YES(i) cout<<(i?"YES":"NO")<<endl
#define Yes(i) cout<<(i?"Yes":"No")<<endl
using namespace std;
//
const int INF=1e9+7;
const int mod=1e9+7;
//
//
struct poi{
  int X;int Y;int Z;
  bool operator<(const poi&R)const{
    return X==R.X ? Y==R.Y ? Z<R.Z : Y<R.Y : X<R.X;
  }
};
//
//
int par[100000];//親
int ran[100000];//木の深さ
//初期化
void init(int N){
  FOR(i,0,N){
    par[i]=i;
    ran[i]=0;
  }
}
//木の根を求める
int find(int X){
  if(par[X]==X){
    return X;
  }else{
    return par[X]=find(par[X]);
  }
}
//Xの属する集合とYの属する集合を併合
void unite(int X,int Y){
  X=find(X);
  Y=find(Y);
  if(X==Y){
    return;
  }
  if(rank[X]<rank[Y]){
    par[X]=Y;
  }else{
    par[Y]=X;
    if(ran[X]==ran[Y]){
      ran[X]++;
    }
  }
}
//XとYが同じ集合に属するか否か
bool same(int X,int Y){
  return  find(X)==find(Y);
}
//
int N,M,K;
set<int> S[100000];
int main(){
	cin>>N>>M;
	FOR(i,0,N){
		cin>>K;
		FOR(j,0,K){
			int l;
			cin>>l;
			l--;
			S[l].insert(i);
		}
	}
	init(N);
	FOR(i,0,M){
		set<int>::iterator it=S[i].begin();
		if(it==S[i].end()){
			continue;
		}
		int num=*it;
		it++;
		while(it!=S[i].end()){
			unite(num,*it);
			num=*it;
			it++;
		}
	}
	FOR(i,0,N-1){
		if(!same(i,i+1)){
			YES(0);
			return 0;
		}
	}
	YES(1);
	return 0;
}


Compiler output:
a.cc: In function 'void unite(int, int)':
a.cc:62:10: error: expected unqualified-id before '[' token
   62 |   if(rank[X]<rank[Y]){
      |          ^
Language: C++

///
// File:  c.go
// Author: ymiyamoto
//
// Created on Fri May 25 00:05:10 2018
//
package main

import (
	"fmt"
)

var N, M int
var visited []bool
var graph [][]int
var graph2 [][]int

func dfs(root int) {
	visited[root] = true

	for _, r := range graph[root] {
		if !visited[r] {
			dfs(p)
		}
	}
}

func main() {
	fmt.Scan(&N, &M)

	graph = make([][]int, N+M)
	for i := range graph {
		graph[i] = make([]int, 0)
	}

	for i := 0; i < N; i++ {
		var K int
		fmt.Scan(&K)
		for j := 0; j < K; j++ {
			var L int
			fmt.Scan(&L)
			L--
			graph[i] = append(graph[i], N+L)
			graph[N+L] = append(graph[N+L], i)
		}
	}

	//fmt.Println(graph)

	visited = make([]bool, N+M)
	dfs(0)

	for i := 0; i < N; i++ {
		if !visited[i] {
			fmt.Println("NO")
			return
		}
	}

	fmt.Println("YES")
}


Compiler output:
a.cc:7:1: error: 'package' does not name a type
    7 | package main
      | ^~~~~~~
a.cc:28:1: error: 'func' does not name a type
   28 | func main() {
      | ^~~~
Language: C++

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

int N,M,K,L;

int p[100010] = {0},r[100010] = {0};
void init(int N){
	for(int i=0;i<=N;++i) p[i] = i;
}

int root(int a){
	if(p[a] == a) return a;
	return (p[a] = root(p[a]));
}

bool is_same_set(int a,int b){
	return root(a) == root(b);
}

void unite(int a, int b){
	a = root(a);
	b = root(b);
	if(a==b) return;
	if(r[a]<r[b]){
		p[a] = b;
	}else{
		p[b] = a;
		if(r[a] == r[b]) r[a]++;
	}
}


int main(){
	cin >> N >> M;
	init(N);
	set<int> S;
	vector<vector<int>> v(N+1);
	vector<int> r;
	for(int i=1;i<=N;i++){
		cin >> K;
		for(int j=0;j<K;j++){
			cin >> L;
			v[i].push_back(L);
		}
		bool judge = false;
		if(i>=2){
			for(int j=0;j<K;j++){
				if(S.find(v[i][j]) != S.end() && !is_same_set(1,i)){
					unite(1,i);
					judge = true;
				}
			}
			if(judge){
				for(int j=0;j<K;j++) S.insert(v[i][j]);
			}else r.push_back(i);
		}else{
			for(int j=0;j<K;j++) S.insert(v[i][j]);
		}
	}
	for(int i=0;i<r.size();i++){
		for(int j=0;j<v[r[i]].size();j++){
			if(S.find(v[r[i]][j]) != S.end()){
				unite(1,i);
				for(int j=0;j<K;j++) S.insert(v[i][j]);
		}
	}
	bool ans = true;
	for(int i=2;i<=N;i++){
		if(!is_same_set(1,i)) ans = false;
	}
	if(ans) cout << "YES" << endl;
	else cout << "NO" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:75:2: error: expected '}' at end of input
   75 | }
      |  ^
a.cc:35:11: note: to match this '{'
   35 | int main(){
      |           ^
Language: Java



import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.InputMismatchException;
import java.util.Set;
import java.util.StringTokenizer;

import codefestival2016Final.C.UnionFind;

public class Main {

	public static void main(String[] args) throws IOException {
		InputStream inputStream = System.in;
		OutputStream outputStream = System.out;
		InputReader in = new InputReader(inputStream);
		PrintWriter out = new PrintWriter(outputStream);
		TaskX solver = new TaskX();
		solver.solve(1, in, out);
		out.close();
	}

	static int INF = 1 << 30;
	static int modP = 1000000007;

	static class TaskX {
		public void solve(int testNumber, InputReader in, PrintWriter out) {

			int n = in.nextInt();
			int m = in.nextInt();
			UnionFind uf = new UnionFind(n + m);

			for (int i = 0; i < n; i++) {
				int k = in.nextInt();
				for (int j = 0; j < k; j++) {
					int l = in.nextInt() - 1;
					uf.link(i, l);
				}
			}

			Set<Integer> set = new HashSet<>();
			for (int i = 0; i < n; i++) {
				set.add(uf.root(i));
			}

			out.println(set.size() > 1 ? "NO" : "YES");

		}
	}

	static class InputReader {
		BufferedReader in;
		StringTokenizer tok;

		public String nextString() {
			while (!tok.hasMoreTokens()) {
				try {
					tok = new StringTokenizer(in.readLine(), " ");
				} catch (IOException e) {
					throw new InputMismatchException();
				}
			}
			return tok.nextToken();
		}

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

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

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

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

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

		public InputReader(InputStream inputStream) {
			in = new BufferedReader(new InputStreamReader(inputStream));
			tok = new StringTokenizer("");
		}

	}

}


Compiler output:
Main.java:14: error: package codefestival2016Final.C does not exist
import codefestival2016Final.C.UnionFind;
                              ^
Main.java:36: error: cannot find symbol
			UnionFind uf = new UnionFind(n + m);
			^
  symbol:   class UnionFind
  location: class TaskX
Main.java:36: error: cannot find symbol
			UnionFind uf = new UnionFind(n + m);
			                   ^
  symbol:   class UnionFind
  location: class TaskX
3 errors
Language: C++

#include<iostream>
using namespace std;
int n,m;
int p[1<<17],rank[1<<17];
int l[1<<17];
int find(int a){return p[a]-a?p[a]=find(p[a]):a;}
void unite(int a,int b)
{
	int pa=find(a),pb=find(b);
	if(pa==pb)return;
	if(rank[pa]<rank[pb])
	{
		p[pa]=pb;
	}
	else
	{
		p[pb]=pa;
		if(rank[pa]==rank[pb])rank[pa]++;
	}
}
main()
{
	cin>>n>>m;
	for(int i=0;i<=n||i<=m;i++)l[i]=-1,p[i]=i;
	for(int i=0;i<n;i++)
	{
		int k,a;
		cin>>k;
		for(int j=0;j<k;j++)
		{
			cin>>a;
			if(l[a]<0)l[a]=i;
			else unite(i,l[a]);
		}
	}
	bool f=true;
	for(int i=0;++i<n;)f&=find(0)==find(i);
	cout<<(f?"YES":"NO")<<endl;
}

Compiler output:
a.cc: In function 'void unite(int, int)':
a.cc:11:12: error: reference to 'rank' is ambiguous
   11 |         if(rank[pa]<rank[pb])
      |            ^~~~
In file included from /usr/include/c++/14/bits/move.h:37,
                 from /usr/include/c++/14/bits/exception_ptr.h:41,
                 from /usr/include/c++/14/exception:166,
                 from /usr/include/c++/14/ios:41,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/type_traits:1437:12: note: candidates are: 'template<class> struct std::rank'
 1437 |     struct rank
      |            ^~~~
a.cc:4:14: note:                 'int rank [131072]'
    4 | int p[1<<17],rank[1<<17];
      |              ^~~~
a.cc:11:21: error: reference to 'rank' is ambiguous
   11 |         if(rank[pa]<rank[pb])
      |                     ^~~~
/usr/include/c++/14/type_traits:1437:12: note: candidates are: 'template<class> struct std::rank'
 1437 |     struct rank
      |            ^~~~
a.cc:4:14: note:                 'int rank [131072]'
    4 | int p[1<<17],rank[1<<17];
      |              ^~~~
a.cc:18:20: error: reference to 'rank' is ambiguous
   18 |                 if(rank[pa]==rank[pb])rank[pa]++;
      |                    ^~~~
/usr/include/c++/14/type_traits:1437:12: note: candidates are: 'template<class> struct std::rank'
 1437 |     struct rank
      |            ^~~~
a.cc:4:14: note:                 'int rank [131072]'
    4 | int p[1<<17],rank[1<<17];
      |              ^~~~
a.cc:18:30: error: reference to 'rank' is ambiguous
   18 |                 if(rank[pa]==rank[pb])rank[pa]++;
      |                              ^~~~
/usr/include/c++/14/type_traits:1437:12: note: candidates are: 'template<class> struct std::rank'
 1437 |     struct rank
      |            ^~~~
a.cc:4:14: note:                 'int rank [131072]'
    4 | int p[1<<17],rank[1<<17];
      |              ^~~~
a.cc:18:39: error: reference to 'rank' is ambiguous
   18 |                 if(rank[pa]==rank[pb])rank[pa]++;
      |                                       ^~~~
/usr/include/c++/14/type_traits:1437:12: note: candidates are: 'template<class> struct std::rank'
 1437 |     struct rank
      |            ^~~~
a.cc:4:14: note:                 'int rank [131072]'
    4 | int p[1<<17],rank[1<<17];
      |              ^~~~
a.cc: At global scope:
a.cc:21:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   21 | main()
      | ^~~~
Language: C++

#include<iostream>
#include<bits/stdc++.h>
using namespace std;
 
vector<int>e[100005]{};
int par[100005];
int Rank[100005];
int find(int x) {
	if (par[x] == x)return x;
	return par[x] = find(par[x]);
}
void unite(int x, int y) {
	x = find(x);
	y = find(y);
	if (x == y)return;
	if (Rank[x] < Rank[y]) {
		par[x] = y;
	}
	else {
		par[y] = x;
	}
	if (Rank[x] == Rank[y])Rank[x]++;
}
int main() {
	int a, b;
	scanf("%d%d", &a, &b);
	for (int x = 0; x < a; x++) {
		par[x] = x;
		Rank[x] = 0;
	}
	for (int c = 0; c < a; c++) {
		int d;
		scanf("%d", &d);
		for (int f = 0; f < d; f++) {
			int g;
			scanf("%d", &g);
			g--;
			e[g].push_back(c);
		}
	}
	for (int x = 0; x < b; x++) {
		if (e[x].size() >= 2) {
			for (int p = 1; p < e[x].size(); p++)unite(e[x][0], e[x][p]);
		}
	}
	set<int>k;
	for (int i = 0; i < a; i++) {
		k.insert(find(i));
	}
	if (k.size() == 1)puts("YES");
	else puts("NO");
}

Compiler output:
a.cc:4:1: error: extended character   is not valid in an identifier
    4 |  
      | ^
a.cc:4:1: error: '\U000000a0' does not name a type
    4 |  
      | ^
a.cc: In function 'int main()':
a.cc:38:25: error: 'e' was not declared in this scope
   38 |                         e[g].push_back(c);
      |                         ^
a.cc:42:21: error: 'e' was not declared in this scope
   42 |                 if (e[x].size() >= 2) {
      |                     ^