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

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

#if DEBUG && !ONLINE_JUDGE
  #include "header.h"
#else
  #define debug(args...)
#endif

typedef vector<int> vi;
typedef pair<int,int> ii;
typedef long long lli;
typedef long double ld;

#define pb push_back
#define all(x) x.begin(),x.end()
#define SZ(x) (int)(x).size()
#define fi first
#define se second
#define lb lower_bound
#define ub upper_bound
#define rep(i,a,b) for(auto i=(a);i<b;i++)

#define INF (int)1e9
#define EPS 1e-9
#define MOD 1000000007
void preprocess(void) {
  return;
}

lli pow1(lli x, lli y) {
  lli ans = 1;
  while(y>0) {
    if(y&1) {
      ans = (ans * x) % MOD;
    }
    x = (x * x) % MOD;
    y = y>>1;
  }
  return ans;
}

lli inv(lli x) {
  return pow1(x, MOD-2);
}

lli C(lli x, lli y) {
  lli ans = 1;
  rep(i,y+1,x+1) {
    ans = ans * i;
    ans %= MOD;
  }
  return ans;
}

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.precision(20);
  //freopen("input.txt","r",stdin);
  //freopen("output.txt","w",stdout);
  preprocess();
  int n; cin>>n;
  string st; cin>>st;
  int b, w;
  b = w = 0;
  vi ar;
  if(st[0] == 'W') {
    cout<<0<<endl;
    return 0;
  }
  ar.pb(0);
  rep(i,1,2*n) {
    if(st[i] == st[i-1]) {
      ar.pb(!ar.back());
    }
    else ar.pb(ar.back());
  }
  lli ans = 1;
  int c = 0, flag = 0;
  debug(ar);
  int c0, c1;
  c0 = c1 = 0;
  for(auto x: ar) {
    if(ar[i]) c1++;
    else c0++;
  }
  if(c0 != c1) {
    cout<<0<<endl;
    return 0;
  }
  for(int i = 2*n-1; i>=0; i--) {
    if(ar[i] == 1) c++;
    else {
      ans *= c;
      ans %= MOD;
      c--;
      if(c<0) flag = 1;
    }
  }
  rep(i,1,n+1) {
    ans = (ans * i) % MOD;
  }
  if(flag) cout<<0<<endl;
  else cout<<ans<<endl;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:85:11: error: 'i' was not declared in this scope
   85 |     if(ar[i]) c1++;
      |           ^
Language: C++

#include <iostream>
#include<bits/stdc++.h>
using namespace std;
long long ans=0;
 long long ans2=0;

int main(void){
    // Your code here!
    int n;
    string s;
    cin>>n>>s;
    
    if(s[0]=='W'||s[2*n-1]=='W'){cout <<0<<endl;return 0;}
    //if(s[0]=='B'&&s[2*n-1]=='B'&&n>=2&&(s[1]=='B'||s[2*n-3]=='B')){cout <<0<<endl;return 0;}
    int b=0;
    int w=0;
    for(int i=0;i<2*n;++i){
        if(s[i]=='W'){w++;}
        if(s[i]=='B'){b++;}
    }
    if(n>=2&&b[1]!=b[2*n-2]){cout<<0<<endl;return 0;}
    ans=1;
    
    ans=1;
    for(int i=1;i<=n;++i){
     ans=ans*i%1000000007;
    }
    ans=ans*n*(n-1)%1000000007;
    cout<< ans<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:15: error: invalid types 'int[int]' for array subscript
   21 |     if(n>=2&&b[1]!=b[2*n-2]){cout<<0<<endl;return 0;}
      |               ^
a.cc:21:21: error: invalid types 'int[int]' for array subscript
   21 |     if(n>=2&&b[1]!=b[2*n-2]){cout<<0<<endl;return 0;}
      |                     ^
Language: C++

#include<cstdio>
#include<cstring>
int a[20005],n;
char aa[20005];
int main(){
	scanf("%d\n",&n);
	gets(aa+1);
	for (int i=2;i<=n+n;i++)
		a[i]=(aa[i]!=aa[i-1])?(a[i-1]):(a[i-1]^1);
	long long ans=1,L=0,R=0,M=1e9+7;
	for (int i=1;i<=n+n;i++){
		if (!a[i]) R++;else{
			ans=(ans*R)%M;
			R--;
		}
	}
	for (int i=1;i<=n;i++)
		ans=(ans*(long long)i)%M;
	if (aa[1]!='B') puts("0");else printf("%lld\n",ans);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
    7 |         gets(aa+1);
      |         ^~~~
      |         getw
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ALL(x) x.begin(),x.end()
#define rep(i,n) for(int i=0;i<n;i++)
#define INF 1000000000
#define mod 1000000007
typedef long long ll;
const ll LINF = 1001002003004005006ll;
int dx[]={1,0,-1,0};
int dy[]={0,1,0,-1};
ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }

int main(){
    ll n;
    cin>>n;
    ll fac=1;
    for(ll i=1;i<=n;i++){
        fac=(fac*i)%mod;
    }
    string s;
    cin>>s;
    char B='B',W='W';
    /*考察
    操作は順不同→一個見つかったらans+=n!すればいい

    範囲を選んでいくが、Bは奇数回、Wは偶数回範囲に含まれればいい
    s[0],s[last]がWだと0それらを偶数回覆えない→ans=0
     */
    if(s[0]==b||s[2*n-1]==B){cout<<0<<endl;return 0;}
    ll num=0;
    ll tmp=1;
    for(int i=0;i<2*n;i++){
        if(s[i]==B){
            if(num%2==0){
                num++;
            }
            else{
                tmp=(tmp*num)%mod;
                num--;
            }
        }
        else{
            if(num%2==0){
                tmp=(tmp*num)%mod;
                num--;
            }
            else{
                num++;
            }
        }
        if(num<0){
            cout<<0<<endl;return 0;
        }
    }
    cout<<(fac*tmp)%mod<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:31:14: error: 'b' was not declared in this scope
   31 |     if(s[0]==b||s[2*n-1]==B){cout<<0<<endl;return 0;}
      |              ^
Language: C++

#include<cstdio>
int a[20005],n;
char aa[20005];
int main(){
	scanf("%d\n",&n);
	gets(aa+1);
	for (int i=2;i<=n+n;i++)
		a[i]=(aa[i]!=aa[i-1])?(a[i-1]):(a[i-1]^1);
	long long ans=1,L=0,R=0,M=1e9+7;
	for (int i=1;i<=n+n;i++){
		if (!a[i]) R++;else{
			ans=(ans*R)%M;
			R--;
		}
	}
	for (int i=1;i<=n;i++)
		ans=(ans*(long long)i)%M;
	if (aa[1]!='B') puts("0");else printf("%lld\n",ans);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
    6 |         gets(aa+1);
      |         ^~~~
      |         getw
Language: C++

#include <bits/stdc++.h>
#define fi first
#define se second
#define rep(i,n) for(int i = 0; i < (n); ++i)
#define rrep(i,n) for(int i = 1; i <= (n); ++i)
#define drep(i,n) for(int i = (n)-1; i >= 0; --i)
#define srep(i,s,t) for (int i = s; i < t; ++i)
#define rng(a) a.begin(),a.end()
#define rrng(a) a.rbegin(),a.rend()
#define maxs(x,y) (x = max(x,y))
#define mins(x,y) (x = min(x,y))
#define limit(x,l,r) max(l,min(x,r))
#define lims(x,l,r) (x = max(l,min(x,r)))
#define isin(x,l,r) ((l) <= (x) && (x) < (r))
#define pb push_back
#define eb emplace_back
#define sz(x) (int)(x).size()
#define pcnt __builtin_popcountll
#define uni(x) x.erase(unique(rng(x)),x.end())
#define snuke srand((unsigned)clock()+(unsigned)time(NULL));
#define show(x) cout<<#x<<" = "<<x<<endl;
#define PQ(T) priority_queue<T,v(T),greater<T> >
#define bn(x) ((1<<x)-1)
#define dup(x,y) (((x)+(y)-1)/(y))
#define newline puts("")
#define v(T) vector<T>
#define vv(T) v(v(T))
using namespace std;
typedef long long int ll;
typedef unsigned uint;
typedef unsigned long long ull;
typedef pair<int,int> P;
typedef tuple<int,int,int> T;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vl;
typedef vector<P> vp;
typedef vector<T> vt;




int main() {
    int N;
    char S[2N];
    cin>>N>>S;
    ll count=0;

    rep(i,N){
        if(S[i]=='B'){
            for(int j=i+1;j<2N;j++){
                
            }
        }

    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:45:12: error: unable to find numeric literal operator 'operator""N'
   45 |     char S[2N];
      |            ^~
a.cc:46:13: error: 'S' was not declared in this scope
   46 |     cin>>N>>S;
      |             ^
a.cc:51:29: error: unable to find numeric literal operator 'operator""N'
   51 |             for(int j=i+1;j<2N;j++){
      |                             ^~
Language: C++


#include<bits/stdc++.h>
using namespace std;
#define inf INT_MAX
#define INF LLONG_MAX
#define ll long long
#define ull unsigned long long
#define M (int)(1e9+7)
#define P pair<int,int>
#define PLL pair<ll,ll>
#define FOR(i,m,n) for(int i=(int)m;i<(int)n;i++)
#define RFOR(i,m,n) for(int i=(int)m;i>=(int)n;i--)
#define rep(i,n) FOR(i,0,n)
#define rrep(i,n) RFOR(i,n,0)
#define all(a) a.begin(),a.end()
#define IN(a,n) rep(i,n){ cin>>a[i]; }
const int vx[4] = {0,1,0,-1};
const int vy[4] = {1,0,-1,0};
#define PI 3.14159265
#define F first
#define S second
#define PB push_back
#define EB emplace_back
#define int ll
#define vi vector<int>



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

  int n;
  string s;
  cin>>n;
  cin>>s;

  if(s[0]=='W'||s[2*n-1]=='W'){
    cout<<0<<endl;
    return 0;
  }

  int ans=1;
  int a=2,b=2;
  FOR(i,1,n){
    if(s[i]==s[2*n-i-1]){
      if(s[i]=='B'){
        int t=a*a;
        t%=M;
        ans*=t;
        ans%=M;
        a++;
      }else{
        int t=b*b;
        t%=M;
        ans*=t;
        ans%=M;
        b++;
      }
    }else{
      int t=a*b;
      t%=M;
      ans*=t;
      ans%=M;
      a++;
      b++;
    }
    //cout<<ans<<' '<<a<<' '<<b<<endl;
  }

  cout<<ans<<endl;


 

Compiler output:
a.cc: In function 'int main()':
a.cc:71:19: error: expected '}' at end of input
   71 |   cout<<ans<<endl;
      |                   ^
a.cc:29:14: note: to match this '{'
   29 | signed main(){
      |              ^
Language: C++

#include <bits/stdc++.h>
#define debug(x) cerr << #x << " " << (x) << endl
using namespace std;
const int N = 100005;
const long long mod = 1000000007ll;
int n, now = 0, seq[N << 1];
char str[N << 1];
long long ans = 1ll;
int main () {
    scanf("%d", &n);
    scanf("%s", str);
    for (int i = 1; i <= (n << 1); i++) seq[i] = (str[i - 1] == 'B') ? 1 : 0;
    seq[0] = seq[(n << 1) + 1] = 0;
    for (int i = (n << 1) + 1; i >= 1; i--) seq[i] ^= (seq[i - 1] ^ 1);
    for (int i = 1; i <= (n << 1); i++) {
        if (seq[i]) {
            seq[i + 1] ^= 1;
            ans = ans * now % mod, now--;
        }
        else now++;
    }
    if (seq[i + 1]) 
    for (int i = 1; i <= n; i++) ans = ans * i % mod;
    if (now) printf("%lld\n", 0ll);
    else printf("%lld\n", ans);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:13: error: 'i' was not declared in this scope
   22 |     if (seq[i + 1])
      |             ^
Language: C++

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

typedef long long ll;
const ll Mod = 1000000007;

int n;
char s[200200];

int main(){
	scanf("%d", &n);
	gets(s), gets(s);
	int cnt = 0;
	ll ans = 1;
	for(int i = 1; i <= n; i++){
		ans *= i;
		ans %= Mod;
	}
	rep(i, 2*n){
		bool col = (s[i] == 'B');
		if(!cnt && !col){
			printf("0\n");
			return 0;
		}
		if(col == cnt%2){
			ans *= cnt;
			ans %= Mod;
			cnt--;
		} else cnt++;
	}
	printf("%lld\n", ans);
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
   13 |         gets(s), gets(s);
      |         ^~~~
      |         getw
Language: C++

#include <bits/stdc++.h>
#define be(v) (v).begin(),(v).end()
#define pb(q) push_back(q)
typedef long long ll;
using namespace std;
const ll mod=1000000007;
#define doublecout(a) cout<<fixed<<setprecision(10)<<a<<endl;

int main() {
    cin.tie(0);
    cout.tie(0);
    ios::sync_with_stdio(false);
    int n;
	scanf("%d", &n);
	for (int i = 0; i < n - 1; ++i) {
		for (int j = i + 1; j < n; ++j) printf("%d ", ctz(i ^ j) + 1);
		printf("\n");
	}
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:63: error: 'ctz' was not declared in this scope
   16 |                 for (int j = i + 1; j < n; ++j) printf("%d ", ctz(i ^ j) + 1);
      |                                                               ^~~
Language: C++

#include <cstdio>
#include <iostream>
#include <string>
#include <vector>
#include <sstream>
#include <map>
#include <set>
#include <queue>
#include <algorithm>
#include <cmath>
#include <cstdlib>
#include <cstring>
#include <typeinfo>
#include <numeric>
#include <functional>
#include <unordered_map>
#include <bitset>
#include <stack>


using namespace std;
using ll = long long;
using ull = unsigned long long;

const ll INF = 1e16;
const ll MOD = 1e9 + 7;

#define REP(i, n) for(ll i = 0; i < n; i++)























int main() {
	int n;
	scanf_s("%d", &n);
	for (int i = 1; i < n; i++) {
		for (int j = i + 1; j <= n; j++) {
			for(int k = 0; k < 9; k++){
				if ((i & (1 << k)) ^ (j & (1 << k))) {
					printf("%d ", k + 1);
					break;
				}
			}
		}
		printf("\n");
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:54:9: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
   54 |         scanf_s("%d", &n);
      |         ^~~~~~~
      |         scanf
Language: C

#include<iostream>
#include <string>
#include <stdio.h>
#define rb(a,b,c) for(int a=b;a<=c;++a)
#define rl(a,b,c) for(int a=b;a>=c;--a)
#define niv vector<int>
#define LL long long
#define IT iterator
#define PB(a) push_back(a)
#define II(a,b) make_pair(a,b)
#define FIR first
#define SEC second
#define FREO freopen("check.out","w",stdout)
#define rep(a,b) for(int a=0;a<b;++a)
#define KEEP while(1)
#define SRAND mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
#define random(a) rng()%a
using namespace std;
const int INF=0x3f3f3f3f;
typedef pair<int,int> mp;
typedef pair<mp,mp> superpair;
int  n;
int res[505][505];
void dfs(int start,int to,int index){
	if(to-start+1<=1) return;
	for(int i=start;i<to;i++)
		for(int j=i+1;j<=to;j++) {res[i][j]=index;
		}
	int mid=(start+to)>>1;
	dfs(start,mid,index+1),dfs(mid+1,to,index+1);
}
int main(){
	cin>>n;
	dfs(1,n,1);
 
	for(int i=1;i<n;i++)
        for(int j=i+1;j<=n;j++)
	cout<<res[i][j]<<" ";
}


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

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

int a[510][510];
int n;

void f()(int l,int r,int k){
  if(r-l==1)return;
  
  int m=(r+l)/2;
  
  for(int i=l;i<m;i++){
    for(int j=m;j<r;j++){
      a[i][j]=k;
    }
  }
  
  f(l,m,k+1);
  f(m,r,k+1);
}

signed main(){
  cin>>n;
  f(0,n,1);
  
  for(int i=0;i<n;i++){
    for(int j=i+1;j<n;j++){
      cout<<a[i][j]<<" ";
    }
    cout<<endl;
  }
}

Compiler output:
a.cc:7:1: error: 'f' declared as function returning a function
    7 | void f()(int l,int r,int k){
      | ^~~~
a.cc: In function 'int main()':
a.cc:24:3: error: 'f' was not declared in this scope
   24 |   f(0,n,1);
      |   ^
Language: C++

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

int a[510][510];
int n;

void f(){int l,int r,int k){
  if(r-l==1)return;
  
  int m=(r+l)/2;
  
  for(int i=l;i<m;i++){
    for(int j=m;j<r;j++){
      a[i][j]=k;
    }
  }
  
  f(l,m,k+1);
  f(m,r,k+1);
}

signed main(){
  cin>>n;
  f(0,n,1);
  
  for(int i=0;i<n;i++){
    for(int j=i+1;j<n;j++){
      cout<<a[i][j]<<" ";
    }
    cout<<endl;
  }
}

Compiler output:
a.cc: In function 'void f()':
a.cc:7:16: error: expected unqualified-id before 'int'
    7 | void f(){int l,int r,int k){
      |                ^~~
a.cc:22:12: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   22 | signed main(){
      |            ^~
a.cc:22:12: note: remove parentheses to default-initialize a variable
   22 | signed main(){
      |            ^~
      |            --
a.cc:22:12: note: or replace parentheses with braces to value-initialize a variable
a.cc:22:14: error: a function-definition is not allowed here before '{' token
   22 | signed main(){
      |              ^
a.cc:32:2: error: expected '}' at end of input
   32 | }
      |  ^
a.cc:7:9: note: to match this '{'
    7 | void f(){int l,int r,int k){
      |         ^
Language: Java

import java.io.*;
import java.nio.charset.StandardCharsets;

public class Main {
	static class Node {
		int id;
		Map<Integer, Integer> edgeTypes;

		Node(int id) {
			this.id = id;
			this.edgeTypes = new HashMap<>();
		}
	}

	public static void main(String[] args) throws IOException {
		InputStreamReader reader = new InputStreamReader(System.in, StandardCharsets.UTF_8);
		BufferedReader in = new BufferedReader(reader);
		int N = Integer.parseInt(in.readLine());

		List<Node> nodes = new ArrayList<>();
		for (int i = 0; i < N; ++i) {
			nodes.add(new Node(i));
		}
		addEdge(nodes, 1);

		for (int i = 0; i + 1 < N; ++i) {
			Node node = nodes.get(i);
			for (int j = i + 1; j < N; ++j) {
				System.out.print(node.edgeTypes.get(j) + " ");
			}
			System.out.println("");
		}

	}

	static void addEdge(List<Node> nodes, int val) {
		if (nodes.size() == 2) {
			Node node = nodes.get(0);
			Node another = nodes.get(1);
			node.edgeTypes.put(another.id, val);
			another.edgeTypes.put(node.id, val);
		} else if (nodes.size() == 3) {
			for (int i = 0; i < 2; ++i) {
				nodes.get(i).edgeTypes.put(nodes.get(i + 1).id, val);
				nodes.get(i + 1).edgeTypes.put(nodes.get(i).id, val);
			}
			nodes.get(0).edgeTypes.put(nodes.get(2).id, val + 1);
			nodes.get(2).edgeTypes.put(nodes.get(0).id, val + 1);
		} else {
			// Listを2つに分ける
			List<Node> listA = new ArrayList<>();
			List<Node> listB = new ArrayList<>();
			for (int i = 0; i < nodes.size() / 2; ++i) {
				listA.add(nodes.get(i));
			}
			for (int i = listA.size(); i < nodes.size(); ++i) {
				listB.add(nodes.get(i));
			}
			// list間のedgeにvalの値を付与
			for (Node node : listA) {
				for (Node another : listB) {
					node.edgeTypes.put(another.id, val);
					another.edgeTypes.put(node.id, val);
				}
			}
			addEdge(listA, val + 1);
			addEdge(listB, val + 1);
		}
	}

}


Compiler output:
Main.java:36: error: cannot find symbol
	static void addEdge(List<Node> nodes, int val) {
	                    ^
  symbol:   class List
  location: class Main
Main.java:7: error: cannot find symbol
		Map<Integer, Integer> edgeTypes;
		^
  symbol:   class Map
  location: class Node
Main.java:11: error: cannot find symbol
			this.edgeTypes = new HashMap<>();
			                     ^
  symbol:   class HashMap
  location: class Node
Main.java:20: error: cannot find symbol
		List<Node> nodes = new ArrayList<>();
		^
  symbol:   class List
  location: class Main
Main.java:20: error: cannot find symbol
		List<Node> nodes = new ArrayList<>();
		                       ^
  symbol:   class ArrayList
  location: class Main
Main.java:51: error: cannot find symbol
			List<Node> listA = new ArrayList<>();
			^
  symbol:   class List
  location: class Main
Main.java:51: error: cannot find symbol
			List<Node> listA = new ArrayList<>();
			                       ^
  symbol:   class ArrayList
  location: class Main
Main.java:52: error: cannot find symbol
			List<Node> listB = new ArrayList<>();
			^
  symbol:   class List
  location: class Main
Main.java:52: error: cannot find symbol
			List<Node> listB = new ArrayList<>();
			                       ^
  symbol:   class ArrayList
  location: class Main
9 errors
Language: C++

#include<bits/stdc++.h>
#define int long long
#define P pair<int,int>
#define PP pair<P,int>
#define F first
#define S second
#define f(i,n) for(int i=0;i<(n);i++)
#define INF LLONG_MAX/3
#define eps LDBL_EPSILON
#define mod (int)(1000000007)
#define pie 3.141592653589793238462643383279
#define Bpri priority_queue
#define Spri priority_queue<P,vector<P>,greater<P>>
#define all(x) (x).begin(),(x).end()
using namespace std;
bool used[501][501];
int lv[501][501];
int v[501];
int l=1;
int gcd(int a,int b){
	if(b==0)return a;
	return gcd(b,a%b);
}
int lcm(int a,int b){
	return a*b/gcd(a,b);
}
void mutu(int x,int y,int z){
	used[x][y]=true;
	lv[x][y]=l;
	v[y]=z;
	for(int i=y+1;i<n;i++){
		if(v[i]!=z&&!used[y][i]){
			mutu(y,i,z%2+1);
		}
	}
}
signed main(){
	int n;
	cin>>n;
	f(i,n){
		for(int j=i+1;j<n;j++){
			if(!used[i][j]){
				f(k,n){
					v[k]=0;
				}
				v[i]=2;
				mutu(i,j,1);
			}
		}
	}
	f(i,n){
		for(int j=i+1;j<n;j++){
			if(j>i+1)cout<<" ";
			cout<<lv[i][j];
		}
		cout<<endl;
	}
}


Compiler output:
a.cc: In function 'void mutu(long long int, long long int, long long int)':
a.cc:31:25: error: 'n' was not declared in this scope
   31 |         for(int i=y+1;i<n;i++){
      |                         ^
Language: C++

#include<bits/stdc++.h>
#define int long long
#define P pair<int,int>
#define PP pair<P,int>
#define F first
#define S second
#define f(i,n) for(int i=0;i<(n);i++)
#define INF LLONG_MAX/3
#define eps LDBL_EPSILON
#define mod (int)(1000000007)
#define pie 3.141592653589793238462643383279
#define Bpri priority_queue
#define Spri priority_queue<P,vector<P>,greater<P>>
#define all(x) (x).begin(),(x).end()
using namespace std;
bool used[501][501];
int lv[501][501]
int v[501];
int l=1;
int gcd(int a,int b){
	if(b==0)return a;
	return gcd(b,a%b);
}
int lcm(int a,int b){
	return a*b/gcd(a,b);
}
void mutu(int x,int y,int z){
	used[x][y]=true;
	lv[x][y]=l;
	v[y]=z;
	for(int i=y+1;i<n;i++){
		if(v[i]!=z&&!used[y][i]){
			mutu(y,i,z%2+1);
		}
	}
}
signed main(){
	int n;
	cin>>n;
	f(i,n){
		for(int j=i+1;j<n;j++){
			if(!used[i][j]){
				f(k,n){
					v[k]=0;
				}
				v[i]=2;
				mutu(i,j,1);
			}
		}
	}
	f(i,n){
		for(int j=i+1;j<n;j++){
			if(j>i+1)cout<<" ";
			cout<<lv[i][j];
		}
		cout<<endl;
	}
}


Compiler output:
a.cc:2:13: error: expected initializer before 'long'
    2 | #define int long long
      |             ^~~~
a.cc:18:1: note: in expansion of macro 'int'
   18 | int v[501];
      | ^~~
a.cc: In function 'void mutu(long long int, long long int, long long int)':
a.cc:29:9: error: 'lv' was not declared in this scope; did you mean 'l'?
   29 |         lv[x][y]=l;
      |         ^~
      |         l
a.cc:30:9: error: 'v' was not declared in this scope
   30 |         v[y]=z;
      |         ^
a.cc:31:25: error: 'n' was not declared in this scope
   31 |         for(int i=y+1;i<n;i++){
      |                         ^
a.cc: In function 'int main()':
a.cc:44:41: error: 'v' was not declared in this scope
   44 |                                         v[k]=0;
      |                                         ^
a.cc:46:33: error: 'v' was not declared in this scope
   46 |                                 v[i]=2;
      |                                 ^
a.cc:54:31: error: 'lv' was not declared in this scope; did you mean 'l'?
   54 |                         cout<<lv[i][j];
      |                               ^~
      |                               l
Language: C++

#pragma GCC optimize("Ofast")
#include <set>
#include <map>
#include <cmath>
#include <stack>
#include <queue>
#include <bitset>
#include <vector>
#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <algorithm>
#define endl '\n'
#define fast ios::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#define zy 2333333
#define bql 2147483647
int n,i,j,flag,a[1005][1005];
vector<int> v;
int main() 
{
    fast;
    cin>>n;
    if(n==2)
    {
        cout<<"1"<<endl;
    } 
    else if(n==3)
    {
        cout<<"1 2"<<endl;
        cout<<"1"<<endl;
    } 
    else
    {
    	flag=n%2;
        if (flag==1) 
           n--;
        	for(i=0;i<n/2;i++)
            {
        		int memo=i;
        		for (j=1;j<=n-1;j++)
                {
        			if (j%2==1)
                    {
        				if(memo<(memo+j)%n) a[memo][(memo+j)%n]=i+1;
        				else a[(memo+j)%n][memo]=i+1;
        				memo=(memo+j)%n;
        			} 
                  else 
                    {
        				if(memo<(memo+n-j)%n) a[memo][(memo+n-j)%n]=i+1;
        				else a[(memo+n-j)%n][memo]=i+1;
        				memo=(memo+n-j)%n;
        			}
        		}
        	}
        if (flag==1)
        {
        	n++;
        	for(i=0;i<n-1;i++) 
               a[i][n-1]=(n+1)/2;
        }
        for(i=0;i<n;i++)
        {
        	for(j=i+1;j<n;j++)
            {
        		cout<<a[i][j];
        		if(j==n-1) 
                   cout<<endl;
        		else 
                  cout << " ";
        	}
        }
    }
    return 0;
}

Compiler output:
a.cc:18:1: error: 'vector' does not name a type
   18 | vector<int> v;
      | ^~~~~~
a.cc: In function 'int main()':
a.cc:14:14: error: 'ios' has not been declared
   14 | #define fast ios::sync_with_stdio(0),cin.tie(0),cout.tie(0)
      |              ^~~
a.cc:21:5: note: in expansion of macro 'fast'
   21 |     fast;
      |     ^~~~
a.cc:14:38: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
   14 | #define fast ios::sync_with_stdio(0),cin.tie(0),cout.tie(0)
      |                                      ^~~
a.cc:21:5: note: in expansion of macro 'fast'
   21 |     fast;
      |     ^~~~
In file included from a.cc:11:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:14:49: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   14 | #define fast ios::sync_with_stdio(0),cin.tie(0),cout.tie(0)
      |                                                 ^~~~
a.cc:21:5: note: in expansion of macro 'fast'
   21 |     fast;
      |     ^~~~
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

#define DEBUGGING
#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define ALL(V) (V).begin(), (V).end()
#define ALLR(V) (V).rbegin(), (V).rend()

template <typename T> using V = vector<T>;
template <typename T> using VV = V<V<T>>;
using ll = int64_t;
using ull = uint64_t;
using PLL = pair<ll, ll>;

template <typename T> const T& var_min(const T &t) { return t; }
template <typename T> const T& var_max(const T &t) { return t; }
template <typename T, typename... Tail> const T& var_min(const T &t, const Tail&... tail) { return min(t, var_min(tail...)); }
template <typename T, typename... Tail> const T& var_max(const T &t, const Tail&... tail) { return max(t, var_max(tail...)); }
template <typename T, typename... Tail> void chmin(T &t, const Tail&... tail) { t = var_min(t, tail...); }
template <typename T, typename... Tail> void chmax(T &t, const Tail&... tail) { t = var_max(t, tail...); }
template <typename T> const T& clamp(const T &t, const T &low, const T &high) { return max(low, min(high, t)); }
template <typename T> void chclamp(T &t, const T &low, const T &high) { t = clamp(t, low, high); }

namespace init__ {

struct InitIO {
    InitIO() {
        cin.tie(nullptr);
        ios_base::sync_with_stdio(false);
        cout << fixed << setprecision(30);
    }
} init_io;

}

#ifdef DEBUGGING
// #include "../debug/debug.cpp"
#include "../../debug/debug.cpp"
#else
#define DEBUG(...) 0
#define DEBUG_SEPARATOR_LINE 0
#endif

template <typename T>
T make_v(T init) { return init; }

template <typename T, typename... Tail>
auto make_v(T init, size_t s, Tail... tail) {
#define rec make_v(init, tail...)
    return V<decltype(rec)>(s, rec);
#undef rec
}

int main() {
    ll N;
    cin >> N;
    for(ll i = 1; i < N; i++) cout << (i == N - 1 && N % 2 == 0 ? 1 : i) << ' ';
    cout << endl;
    for(ll i = 1; i < N - 1; i++) {
        ll init_v = 1;
        for(ll j = i + 1; j < N; j++) cout << init_v++ << ' ';
        cout << endl;
    }
    return 0;
}


Compiler output:
a.cc:37:10: fatal error: ../../debug/debug.cpp: No such file or directory
   37 | #include "../../debug/debug.cpp"
      |          ^~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C

#include <bits/stdc++.h>
using namespace std;
const int N = 100010;
struct dat {
    int a,r,c;
    bool operator<(const dat x)const {
        return a>x.a;
    }
}p[N];
int n,h,w,fa[N<<1],vl[N<<1],ans;
int find(int u) {
    return fa[u]==u?u:fa[u]=find(fa[u]);
}
void ut(int u,int v) {
    int fu=find(u),fv=find(v);
    if(fu!=fv) {
        fa[fu]=fv;
        vl[fv]+=vl[fu];
    }
}
int main() {
    scanf("%d%d%d",&n,&h,&w);
    for(int i=1;i<=h+w;i++) fa[i]=i,vl[i]=1;
    for(int i=1;i<=n;i++) {
        scanf("%d%d%d",&p[i].r,&p[i].c,&p[i].a);
        p[i].c+=h;
    }
    sort(p+1,p+n+1);
    for(int i=1;i<=n;i++) {
        ut(p[i].c,p[i].r);
        int f=find(p[i].c);
        // printf("fa[%d]=%d %d\n",f,vl[f],p[i].a);
        if(vl[f]>=1) {
            vl[f]--;
            ans+=p[i].a;
        }
    }
    printf("%d\n",ans);
}


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

#include<bits/stdc++.h>
using namespace std;
#define ll long long
const int MAXN = 1e5 + 10;

struct node{
    int u,v;
    ll w;
}edge[MAXN];

bool cmp(node a,node b){return a.w > b.w;}

int cy[MAXN<<1],n,h,w;
bool vis[MAXN];

bool dfs(int i)
{
    if (vis[i]) return false;
    ll num = (ll)edge[i].u * 1000000 + (ll)edge[i].v;
    if (g.count(num) && g[num] >= 2) return false;
    vis[i] = 1;
    if (cy[edge[i].u] == 0)
    {
        cy[edge[i].u] = i;
        return true;
    }
    else if (cy[edge[i].v + MAXN] == 0)
    {
        cy[edge[i].v + MAXN] = i;
        return true;
    }
    if (dfs(cy[edge[i].u]))
    {
        cy[edge[i].u] = i;
        return true;
    }
    else if (dfs(cy[edge[i].v + MAXN]))
    {
        cy[edge[i].v + MAXN] = i;
        return true;
    }
    return false;
}

unordered_map<ll,int> g;

ll match()
{
    for (int i = 1;i<=n;i++)
    {
        memset(vis,0,sizeof(vis));
        ll num = (ll)edge[i].u * 1000000 + (ll)edge[i].v;
        if (g.count(num) && g[num] >= 2) continue;
        g[num]++;
        // for(int j=1;j<=n;j++) vis[i]=0;
        dfs(i);
    }
    ll ans = 0;
    for (int i = 1;i<=h;i++) ans += edge[cy[i]].w;
    for (int i = MAXN + 1;i<=MAXN + w;i++) ans += edge[cy[i]].w;
    return ans;
}

int main()
{
    // cin>>n>>h>>w;
    scanf("%d%d%d",&n,&h,&w);
    for (int i = 1;i<=n;i++)
    {
        scanf("%d%d%lld",&edge[i].u,&edge[i].v,&edge[i].w);
    }
    sort(edge+1,edge + n + 1,cmp);
    // cout<<match();
    printf("%lld",match());
    return 0;
}

Compiler output:
a.cc: In function 'bool dfs(int)':
a.cc:20:9: error: 'g' was not declared in this scope
   20 |     if (g.count(num) && g[num] >= 2) return false;
      |         ^
Language: C++

#include <bits/stdc++.h>
#define name "bai5"
#define pii pair<int,int>
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define fto(i,a,b) for(int i=a; i<=b;++i)
#define maxn 100009
#define ll long long

using namespace std;
bool gone[maxn][3];
int cl[maxn];
int xd[maxn][3],a[maxn][3],w,h,n;
pii b[maxn];
bool check(int i, int x,int j){
    //if(!ck[i][x]) return false;
    if(gone[i][x])return false;
    gone[i][x]=true;
    if(xd[i][x]==0){
        xd[i][x]=j;
        gone[i][x]=false;
        return true;
    }
    /// xd[i][x]!=0;
    /// i,x la cot hoac hang, j la chi so can dien
    int t=xd[i][x];/// t la so can dien
    if(check(a[t][1-x],1-x,t)){
        xd[i][x]=j;
        gone[i][x]=false;
        return true;
    }
    gone[i][x]=false;
    return false;
}
int main()
{
    cin >> n >> h >> w;
    fto(i,1,n){
        cin >> a[i][0]>> a[i][1] >> b[i].fi;
        b[i].se=i;
        ck[i][0]=ck[i][1]=true;
    }
    sort(b+1,b+n+1,greater<pii> ());
    ll res=0;
    fto(i,1,n){
        int j=b[i].se;
        if(check(a[j][0],0,j)){
            //xd[a[j][0]][0]=j;
            res+=b[i].fi;
        }
        else if(check(a[j][1],1,j)){
            //xd[a[j][1]][1]=j;
            res+=b[i].fi;
        }
    }
    cout << res ;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:43:9: error: 'ck' was not declared in this scope; did you mean 'cl'?
   43 |         ck[i][0]=ck[i][1]=true;
      |         ^~
      |         cl
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;

const int MAXN = 3e5+10;

int bit[MAXN];
int par[MAXN];
int parent(int i) {
  return par[i] < 0 ? i: (par[i]=parent(par[i]));
}

bool merge(int a, int b) {
  int x = parent(a);
  int y = parent(b);
  if (x==y) {
    if (bit[x]) return false;
    else return bit[x] = 1;
  }
  if (bit[x] && bit[y]) return false;
  bit[x]+=bit[y];
  bit[y] = x;
  return 1;
}

int gc=0;
map<pair<int,int>, int> m;
int gid(int r, int c) {
  auto p = make_pair(r,c);
  if (m.count(p)) {
    return m[p];
  }
  else {
    return  m[p] = gc++;
  }
}

int n, h, w;

int main(){
  cin.tie(0); ios_base::sync_with_stdio(0);
  cin >> n >> h >> w;
  memset(par, -1,sizeof par);
  vector<vector<int>> v;
  for(int i=0;i<n;i++) {
    int r, c, w;
    cin >> r >> c >> w;
    v.push_back({w,r,c});
  }
  sort(v.rbegin(), v.rend());
  ll ans = 0;
  for(auto p: v) {
    if (merge(gid(p[1],0), gid(p[2],1))){
      ans+=p[0];
      //cerr << "ADDING " << p[1] << " " << p[2] << " " << p[0] <<endl;
    }
    else 
      //cerr << "NOT ADDING " << p[1] << " " << p[2] << " " << p[0] <<endl;
  }
  cout << ans <<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:60:3: error: expected primary-expression before '}' token
   60 |   }
      |   ^
Language: C++

#include <bits/stdc++.h>
#include <math.h>
#include <chrono>
using namespace std;
#pragma GCC optimize("-O3")
#define endl "\n"
#define mp make_pair
#define st first
#define nd second
#define pii pair<int, int>
#define pb push_back
#define _upgrade ios_base::sync_with_stdio(0), cout.setf(ios::fixed), cout.precision(10) //cin.tie(0); cout.tie(0);
#define REP(i, n) for (int i = 0; i < (n); ++i)
#define FWD(i, a, b) for (int i = (a); i < (b); ++i)
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define fwd(i, a, b) for (int i = (a); i < (b); ++i)
#define all(c) (c).begin(), (c).end()
#define what(x) cerr << #x << " is " << x << endl;
#define int long long

const int MAXN = 2e5 + 1e4;
int kapitan[MAXN];
int wynik = 0;

int fiind(int x)
{
    if (kapitan[x] != x)
        kapitan[x] = fiind(kapitan[x]);
    return kapitan[x];
}
void unia(pair<int, pii> P)
{
    // cerr << P.st << " " << P.nd.st << " " << P.nd.nd << endl;
    int x = fiind(P.nd.st);
    int y = fiind(P.nd.nd);
    if (x > y)
        swap(x, y);
    if (x == 0 && y == 0)
        return;
    wynik += P.st;
    if (x == 0 || x == y)
        kapitan[y] = 0;
    else
        kapitan[y] = x;
}

vector<pair<int, pii>> A;
main()
{
    _upgrade;
    iota(kapitan, kapitan + MAXN, 0);
    int n, w, h;
    cin >> n >> w >> h;
    rep(i, n)
    {
        int b, c, a;
        cin >> b >> c >> a;
        b += max(w, h) + 2;
        A.pb(mp(a, mp(b, c)));
    }
    sort(all(A), greater<pair<int, pii>>());
    for (auto a : A)
        unia(a);
    cout << wynik << endl;
}
p

Compiler output:
a.cc:48:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   48 | main()
      | ^~~~
a.cc:66:1: error: 'p' does not name a type; did you mean 'mp'?
   66 | p
      | ^
      | mp
Language: C++

#include<bits/stdc++.h>
#define SZ(x) ((int)x.size())
#define pb push_back
#define fi first
#define se second
#define L(i,u) for (int i=head[u]; i!=0; i=nxt[i])
#define rep(i,a,b) for (register int i=a; i<=b; i++)
#define per(i,a,b) for (register int i=a; i>=b; i--)
using namespace std;
typedef long long ll;
typedef unsigned int ui;
typedef pair<int,int> Pii;
typedef vector<int> Vi;
inline void read(int &x) {
	x=0; char c=getchar(); int f=1;
	while (!isdigit(c)) {if (c=='-') f=-1; c=getchar();}
	while (isdigit(c)) {x=x*10+c-'0'; c=getchar();} x*=f;
}
inline ui R() {
	static ui seed=416;
	return seed^=seed>>5,seed^=seed<<17,seed^=seed>>13;
}
const int N = 300005, M = 300005, inf = 0x3f3f3f3f;
int n,head[N],cur[N],nxt[M],to[M],edgenum,match[N];
bool xuan[N],vis[N];
struct node{
	int r,c,w;
}s[N];
bool cmp(node a, node b){return a.w>b.w;}
void addedge(int u, int v){
	to[++edgenum]=v;nxt[edgenum]=head[u];head[u]=edgenum;
}
void add(int u, int v){
	addedge(u,v);addedge(v,u);
}
int sta[N],top;
bool dfs(int u){
	if(vis[u])return 0;vis[u]=1;sta[++top]=u;
	L(i,u)if(!match[to[i]]||dfs(match[to[i]])){
		match[u]=to[i];match[to[i]]=u;
		return 1;
	}
	return 0;
}
void print(int T){
	printf("---%d---\n",T);
	rep(i,1,n)printf("%d ",match[i]-n);puts("");
}
int main() {
	read(n);read(h);read(w);
	rep(i,1,n){
		read(s[i].r);read(s[i].c);read(s[i].w);
	}
	sort(s+1,s+n+1,cmp);ll res=0;
	rep(i,1,n){
		add(i,1e5+s[i].r);
		add(i,2e5+s[i].c);
	}
	
	rep(i,1,n){
		if(dfs(i))res+=s[i].w;
		while(top)vis[sta[top--]]=0;
	//	print(i);
	}
	cout<<res;
	return 0;
}

Compiler output:
a.cc: In function 'void print(int)':
a.cc:47:13: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   47 |         rep(i,1,n)printf("%d ",match[i]-n);puts("");
      |             ^
a.cc:7:38: note: in definition of macro 'rep'
    7 | #define rep(i,a,b) for (register int i=a; i<=b; i++)
      |                                      ^
a.cc: In function 'int main()':
a.cc:50:22: error: 'h' was not declared in this scope
   50 |         read(n);read(h);read(w);
      |                      ^
a.cc:50:30: error: 'w' was not declared in this scope
   50 |         read(n);read(h);read(w);
      |                              ^
a.cc:51:13: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   51 |         rep(i,1,n){
      |             ^
a.cc:7:38: note: in definition of macro 'rep'
    7 | #define rep(i,a,b) for (register int i=a; i<=b; i++)
      |                                      ^
a.cc:55:13: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   55 |         rep(i,1,n){
      |             ^
a.cc:7:38: note: in definition of macro 'rep'
    7 | #define rep(i,a,b) for (register int i=a; i<=b; i++)
      |                                      ^
a.cc:60:13: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   60 |         rep(i,1,n){
      |             ^
a.cc:7:38: note: in definition of macro 'rep'
    7 | #define rep(i,a,b) for (register int i=a; i<=b; i++)
      |                                      ^
Language: C++

#include<bits/stdc++.h>
#define int long long
using namespace std;
int n,h,w;
int a[100005],xx[100005],yy[100005];
set<pair<int,pair<int,int> > >S;
vector<int>g[2][100005];
struct ssss{
	int par[200005];
	ssss(){for(int i=1;i<=200000;i++)par[i]=i;}
	int find(int x){
		return par[x]==x?x:par[x]=find(par[x]);
	}
	void merge(int x,int y){
		int nx=find(x),ny=find(y);
		par[nx]=ny;
	}
}uf;
bool dead[2][100005];
void kill(int op,int x){
//	cerr<<op<<" "<<x<<endl;
	dead[op][x]=1;
	for(int i=0;i<g[op][x].size();i++){
		if(dead[op^1][g[op][x][i]])continue;
		kill(op^1,g[op][x][i]);
	}
}
bool can(int x,int y,int v){
	if(dead[0][x]&&dead[1][y])return false;
	if(dead[0][x]){
		dead[1][y]=1;
		return true;
	}
	if(dead[1][y]){
		dead[0][x]=1;
		return true;
	}
	if(uf.find(x)==uf.find(y+1e5)){
		kill(0,x);
	}else{
		g[0][x].push_back(y);
		g[1][y].push_back(x);
		uf.merge(x,y+1e5);
	}
	return true;
}
signed main(){
	cin>>n>>h>>w;
	for(int i=1;i<=n;i++){
		cin>>xx[i]>>yy[i]>>a[i];
		S.insert(make_pair(-a[i],make_pair(xx[i],yy[i])));
	}
	int ans=0;
	while(!S.empty()){
		if(can(S.begin()->second.first,S.begin()->second.second,-S.begin()->first)){
			ans-=S.begin()->first;
			cerr<<-S.begin()->first<<endl;
		}
		S.erase(S.begin());
	}
	cout<<ans<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'bool can(long long int, long long int, long long int)':
a.cc:39:21: error: call of overloaded 'kill(int, long long int&)' is ambiguous
   39 |                 kill(0,x);
      |                 ~~~~^~~~~
In file included from /usr/include/c++/14/csignal:42,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:116,
                 from a.cc:1:
/usr/include/signal.h:112:12: note: candidate: 'int kill(__pid_t, int)'
  112 | extern int kill (__pid_t __pid, int __sig) __THROW;
      |            ^~~~
a.cc:20:6: note: candidate: 'void kill(long long int, long long int)'
   20 | void kill(int op,int x){
      |      ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define int long long
const int mod=1000000007;

int quickpow(int x,int y)
{
	long long res=1,base=x;
	while(y)
	{
		if(y&1) res*=base,res%=mod;
		y>>=1; base*=base,base%=mod;
	}
	return res;
}
int inv(int x){return quickpow(x,mod-2);}

int prod[1000001];
int iprod[1000001];
int c(int n,int m){return 1ll*prod[n]*iprod[n-m]%mod*iprod[m]%mod;}

int solve2(int n,int m,int s,int l,int r)
{
	s-=m*r;
	if(s<0) return 0;
	int ans=0;
	for(int i=0;i<=n-m&&s-i*l>=0;i++)
	{
		ans=ans+1ll*((i%2==0)?1:-1)*c(s-i*l+n,n)*c(n-m,i)%mod;
		ans%=mod;
	}
	return 1ll*(ans+mod)*c(n,m)%mod;
}

int solve(int n,int m,int s)
{
	int ans=c(s+n,n);
	for(int i=0;i<=s;i++)
		ans=(ans-solve2(n,m,s,i,i)+solve2(n,m,s,i,i+1))%mod;
	return 1ll*(ans+mod)%mod%mod;
}
int main()
{
	int n,m,l,r;
	scanf("%lld%lld%lld%lld",&n,&m,&l,&r);
	
	prod[0]=1,iprod[0]=1;
	for(int i=1;i<=1000000;i++)
	{
		prod[i]=1ll*prod[i-1]*i%mod;
		iprod[i]=inv(prod[i]);
	}
	printf("%lld",(solve(n,m,r)-solve(n,m,l-1)+mod)%mod);
	return 0;
}


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

#include<bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for(int i=(a);i<=(b);++i)
typedef long long LL;
const LL P = 1e9+7;
const int N = 6e5+5;
 
int fac[N], ifac[N];
int n, m, L, R;

int pw(LL x,int n){
	LL res = 1;
	for(;n;n>>=1,x=x*x%P)if(n&1)res=res*x%P;
	return res;
}
int C(int x,int y){
	if(y<0 || y>x) return 0;
	return 1ll * fac[x] * ifac[y] % P * ifac[x-y] % P;
}
int calc(int n,int sumL,int sumR){
	return (C(sumR+n,n) - C(sumL-1+n,n) + P) % P;
}
 
int main(){
	fac[0] = 1;
	rep(i,1,N-1) fac[i] = 1ll * fac[i-1] * i % P;
	ifac[N-1] = pw(fac[N-1], P-2);
	rrep(i,N-2,0) ifac[i] = 1ll * ifac[i+1] * (i+1) % P;
	
	cin>>n>>m>>L>>R;
	int sall = calc(n,L,R), s1 = 0;
	
	rep(i,1,R){
		int sL = L - m * i, sR = R - m * i, r = i - 1, res = 0;
		if(sR<0) break;
		
		rep(j,0,n-m){
			int sl = sL - j * (r+1), sr = sR - j * (r+1);
			if(sr<0) break;
			res = (res + (j%2==0 ? 1ll : -1ll) * calc(n,sl,sr) * C(n-m, j) % P + P) % P;
		}
		
		sL = L - m * (i+1), sR = R - m * (i+1);
		rep(j,0,n-m){
			int sl = sL - j * (r+1), sr = sR - j * (r+1);
			if(sR<0) break;
			res = (res - (j%2==0 ? 1ll : -1ll) * calc(n,sl,sr) * C(n-m, j) % P + P) % P;
		}
		s1 = (s1 + 1ll * res * C(n, m) % P) % P;
	}
	cout<<(sall - s1 + P) % P <<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:28:14: error: 'i' was not declared in this scope
   28 |         rrep(i,N-2,0) ifac[i] = 1ll * ifac[i+1] * (i+1) % P;
      |              ^
a.cc:28:9: error: 'rrep' was not declared in this scope; did you mean 'rep'?
   28 |         rrep(i,N-2,0) ifac[i] = 1ll * ifac[i+1] * (i+1) % P;
      |         ^~~~
      |         rep
Language: C++

NoSubをしないという†強い意志†(ジャッジサーバーさんごめんなさい><)


Compiler output:
a.cc:1:1: error: extended character † is not valid in an identifier
    1 | NoSubをしないという†強い意志†(ジャッジサーバーさんごめんなさい><)
      | ^
a.cc:1:1: error: extended character † is not valid in an identifier
a.cc:1:30: error: expected constructor, destructor, or type conversion before '(' token
    1 | NoSubをしないという†強い意志†(ジャッジサーバーさんごめんなさい><)
      |                              ^
Language: C

#include <bits/stdc++.h>
using namespace std;
int main(void){
    long long int n,m,i=0,j,h,a;
    string s;
    cin >> a >> s;
    h=s.size();
    if(a<3200)
    {
        cout << "red" << endl;
    }
    else
    {
        cout << s << endl;
    }
    
    return 0;

}


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

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

int main() {
  
  int a;
  string s;
  cin >> A >> s;
  
  if (A>=3200) {
    cout << s << endl;
  }
  else {
    cout << "red" << endl;
  }
  
  

return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:10: error: 'A' was not declared in this scope
    8 |   cin >> A >> s;
      |          ^
Language: C++

#include<bits/stdc++.h>
#define ll long long
#define P pair<ll, ll>
using namespace std;

int seen[200001] = {0};
int cnt[200001] = {0};
vector<vector<int>> g;

void dfs(vector<int>x, int e){
    seen[e] = 1;
    for(auto ne:g[e]){
        if(seen[ne] > 0) continue;
        cnt[ne] = cnt[e] + x[ne];
        dfs(g, x, ne, cnt);
    }
}

int main(){
    int n, q;
    cin >> n >> q;
    g.resize(n);
    for(int i=0;i<n-1;i++){
        int a, b;
        cin >> a >> b;
        a--;
        b--;
        g[a].push_back(b);
        g[b].push_back(a);
    }

    vector<int>x(n, 0);
    for(int i=0;i<q;i++){
        int p, tmp;
        cin >> p >> tmp;
        x[p-1] += tmp;
    }

    cnt[0] = x[0];
    dfs(x, 0);

    for(int i=0;i<n;i++) cout << cnt[i] << " ";
    cout << endl;
}

Compiler output:
a.cc: In function 'void dfs(std::vector<int>, int)':
a.cc:15:13: error: could not convert 'g' from 'vector<std::vector<int>>' to 'vector<int>'
   15 |         dfs(g, x, ne, cnt);
      |             ^
      |             |
      |             vector<std::vector<int>>
Language: C

#include<stdio.h>

int main(void){
  int a;
  char c[11];
  scanf("%d",&a);
  scanf("%s",c);
  if(a>=3200){
    prinf("%s\n",c);
  }else{
    printf("red\n");
  }
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:9:5: error: implicit declaration of function 'prinf'; did you mean 'printf'? [-Wimplicit-function-declaration]
    9 |     prinf("%s\n",c);
      |     ^~~~~
      |     printf
Language: C++

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

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	int a;
	string t;
	cin >> a >> t;
	cout << (a >= 3200 ? s : "red") << '\n';
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:30: error: 's' was not declared in this scope
   10 |         cout << (a >= 3200 ? s : "red") << '\n';
      |                              ^
Language: C++

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

int main(){
  int n;
  cin >> n;
  string s;
  cin >> s;
  if(n >= 3200) cout << s << endl;
  ekse cout << "red" << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:3: error: 'ekse' was not declared in this scope
   13 |   ekse cout << "red" << endl;
      |   ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int a;
  string s;
  cin>>a>>s;
  if(a>=3200)cout<<s<<endl;
  else cout<<"red<<endl
}

Compiler output:
a.cc:8:14: warning: missing terminating " character
    8 |   else cout<<"red<<endl
      |              ^
a.cc:8:14: error: missing terminating " character
    8 |   else cout<<"red<<endl
      |              ^~~~~~~~~~
a.cc: In function 'int main()':
a.cc:9:1: error: expected primary-expression before '}' token
    9 | }
      | ^
Language: C++

#include <iostream>
#include <math.h>
#include <string>
using namespace std;

int main()
{
    string b ;
    int a ;
    cin >> a >> b ;
    if (a<3200){
        cout << "red" ;
    }
    else{
        cout << s ;
    }
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:17: error: 's' was not declared in this scope
   15 |         cout << s ;
      |                 ^
Language: C++

#include<iotream>
#include<string>
using namespace std;
int main()
{
  int n;
  string s;
  cin>>n>>s;
  if(n>=3200) cout<<s;
  else cout<<"red";
}

Compiler output:
a.cc:1:9: fatal error: iotream: No such file or directory
    1 | #include<iotream>
      |         ^~~~~~~~~
compilation terminated.
Language: Java

#include <iostream>

using namespace std;

int main(){
    long g = 0;
    string n = "a";
    cin >> g;
    cin >> n;
    if (g >= 3200){
        cout << n << "\n";
    }
    else{
        cout << "red\n";
    }
    return 0;
}

Compiler output:
Main.java:1: error: illegal character: '#'
#include <iostream>
^
Main.java:1: error: class, interface, enum, or record expected
#include <iostream>
         ^
Main.java:8: error: not a statement
    cin >> g;
        ^
Main.java:9: error: not a statement
    cin >> n;
        ^
Main.java:11: error: not a statement
        cout << n << "\n";
                  ^
Main.java:14: error: not a statement
        cout << "red\n";
             ^
Main.java:5: error: unnamed classes are a preview feature and are disabled by default.
int main(){
^
  (use --enable-preview to enable unnamed classes)
7 errors