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

import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        // 整数の入力
        int N=sc.nextInt();
        int M=sc.nextInt();

        ArrayList<Integer>[] ab=new ArrayList[N];
        for(int i=0;i<N;i++){
            ab[i]=new ArrayList<>();
        }
        int[] list=new int[N];
        for(int i=0;i<M;i++){
            int a=sc.nextInt()-1;
            int b=sc.nextInt()-1;
            list[a]++;
            list[b]++;
            ab[a].add(b);
            ab[b].add(a);
        }

        Arrays.sort(list);
        for(int i=0;i<N;i++){
            if(list[i]%2==1){
                System.out.println("No");
                return;
            }
        }
        if(list[N-1]>5){
            System.out.println("Yes");
            return;

        }
        if(list[N-3]>3){
            System.out.println("Yes");
            return;
        }
        if(list[N-2]>3){
            System.out.println("No");
            return;

            for(int i=0;i<N;i++){
                if(ab[i].size()==4){
                    int point=0;

                    for(int j=0;j<4;j++){
                        int back=i;
                        int tmp=i;
                        int next=ab[i].get(j);
                        while(true){
                            if(ab[next].size()==2){
                                if(ab[next].get(0)==back){
                                    back=tmp;
                                    tmp=next;
                                    next=ab[tmp].get(1);
                                }else{
                                    back=tmp;
                                    tmp=next;
                                    next=ab[tmp].get(0);
                                }
                            }
                            else{
                                if(next!=i){
                                point++;
                                }
                                break;

                            }
                        }

                    }
                    if(point==4){
                        System.out.println("No");
                        return;
                    }else{
                        System.out.println("Yes");
                        return;

                    }

                }
            }
        }
        System.out.println("No");
        return;


    }
}

Compiler output:
Main.java:43: error: unreachable statement
            for(int i=0;i<N;i++){
            ^
Note: Main.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error
Language: C++

18 27
17 7
12 15
18 17
13 18
13 6
5 7
7 1
14 5
15 11
7 6
1 9
5 4
18 16
4 6
7 2
7 11
6 3
12 14
5 2
10 5
7 8
10 15
3 15
9 8
7 15
5 16
18 15

Compiler output:
a.cc:1:1: error: expected unqualified-id before numeric constant
    1 | 18 27
      | ^~
Language: C++

#include <bits/stdc++.h>
using namespace std;int a[1234567];int main(){	int n,m,x,y;	cin>>n>>m;	if (m<n+2) {puts("No");return 0;}	while (m--){cin>>x>>y;		a[x]++;a[y]++;
	}
	for (int i=1;i<=n;i++)
		if (deg[i]&1) {puts("No");return 0;}
	puts("Yes");	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:21: error: 'deg' was not declared in this scope
    5 |                 if (deg[i]&1) {puts("No");return 0;}
      |                     ^~~
Language: C++

// Created by Nikolay Budin

#ifdef LOCAL
#  define _GLIBCXX_DEBUG
#else
#  define cerr __get_ce
#endif
#include <bits/stdc++.h>
#define ff first
#define ss second
#define szof(x) ((int)x.size())

using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef unsigned long long ull;
int const INF = (int)1e9 + 1e3;
ll const INFL = (ll)1e18 + 1e6;
#ifdef LOCAL
	mt19937 tw(9450189);
#else
	mt19937 tw(chrono::high_resolution_clock::now().time_since_epoch().count());
#endif
uniform_int_distribution<ll> ll_distr;
ll rnd(ll a, ll b) { return ll_distr(tw) % (b - a + 1) + a; }


void solve() {
	int n, m;
	cin >> n >> m;
	vector<vector<pii>> graph(n);
	for (int i = 0; i < m; ++i) {
		int a, b;
		cin >> a >> b;
		--a; --b;
		graph[a].push_back({b, i});
		graph[b].push_back({a, i});
	}

	for (int i = 0; i < n; ++i) {
		if (szof(graph[i]) % 2) {
			cout << "No\n";
			return;
		}
	}

	for (int i = 0; i < n; ++i) {
		if (szof(graph[i]) > 4) {
			cout << "Yes\n";
			return;
		}
	}

	vector<int> order;
	vector<int> vcnt(n);
	vector<bool> used(m);
	function<void(int)> dfs = [&](int v) {
		while (vcnt[v] < szof(graph[v])) {
			pii to = graph[v][vcnt[v]];
			++vcnt[v];
			if (used[to.ss]) {
				continue;
			}
			used[to.ss] = true;
			dfs(to.ff);
		}
		order.push_back(v);
	};

	dfs(0);
	order.pop_back();

	for (int v : order) {
		cerr << v + 1 << " ";
	}
	cerr << endl;

	vector<vector<int>> where(n);
	for (int i = 0; i < szof(order); ++i) {
		where[order[i]].push_back(i);
	}

	vector<int> st(n);
	set<pii> have;
	bool removed = false;
	for (int i = 0; i < szof(order); ++i) {
		if (szof(where[order[i]]) == 2) {
			if (st[order[i]]) {
				if (have.begin()->ss != order[i]) {
					cout << "Yes\n";
					return;
				}
				have.erase(have.begin());
				removed = true;
			} else {
				if (removed) {
					cout << "Yes\n";
					return;
				}
				have.insert({i, order[i]});
			}
			st[order[i]] ^= 1;
		}
	}
	cout << "No\n";
}


int main() {
#ifdef LOCAL
	auto start_time = clock();
	cerr << setprecision(3) << fixed;
#endif
	cout << setprecision(15) << fixed;
	ios::sync_with_stdio(false);
	cin.tie(nullptr);

	int test_count = 1;
	// cin >> test_count;
	for (int test = 1; test <= test_count; ++test) {
		solve();
	}
	
#ifdef LOCAL
	auto end_time = clock();
	cerr << "Execution time: " << (end_time - start_time) * (int)1e3 / CLOCKS_PER_SEC << " ms\n";
#endif
}


Compiler output:
/usr/bin/ld: /tmp/cctxx4OY.o: warning: relocation against `_ZSt8__get_ce' in read-only section `.text'
/usr/bin/ld: /tmp/cctxx4OY.o: in function `solve()':
a.cc:(.text+0x569): undefined reference to `std::__get_ce'
/usr/bin/ld: a.cc:(.text+0x5c3): undefined reference to `std::__get_ce'
/usr/bin/ld: warning: creating DT_TEXTREL in a PIE
collect2: error: ld returned 1 exit status
Language: C++

#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <iomanip>
#include <queue>
#include <stack>
#include <cstdlib>
#include <map>
#include <iomanip>
#include <set>
#include <stdio.h>
#include <ctype.h>
#include <random>
#include <string.h>
#include <cmath>
#include <unordered_map>
#include <cstdio>
using namespace std;
#define all(vec) vec.begin(),vec.end()
typedef long long ll;

ll gcd(ll x, ll y) {
	if (y == 0)return x;
	return gcd(y, x%y);
}
ll lcm(ll x, ll y) {
	return x / gcd(x, y)*y;
}
ll kai(ll x, ll y, ll m) {
	ll res = 1;
	for (ll i = x - y + 1; i <= x; i++) {
		res *= i; res %= m;
	}
	return res;
}
ll mod_pow(ll x, ll y, ll m) {
	ll res = 1;
	while (y > 0) {
		if (y & 1) {
			res = res * x % m;
		}
		x = x * x % m;
		y >>= 1;
	}
	return res;
}

ll comb(ll x, ll y, ll m) {
	if (y > x)return 0;
	return kai(x, y, m) * mod_pow(kai(y, y, m), m - 2, m) % m;
}

const ll INF = 1000000000000000000;

int n, a, b, p[5010], x[5010];
int cum[5010][5010];
ll d[5010][5010];
ll ans = INF;

signed main() {
	std::random_device rnd;
	std::mt19937_64 mt(rnd());
	cin >> n >> a >> b;
	for (int i = 1; i <= n; i++)cin >> p[i], x[p[i]] = i;
	for (int i = 1; i <= n; i++) for (int j = 1; j <= n; j++) {
		if (i < p[j])cum[i][j] = cum[i][j - 1] + 1;
		else cum[i][j] = cum[i][j - 1];
	}
	for (int i = 1; i <= n; i++)for (int j = 1; j <= i; j++)d[i][j] = INF;
	d[1][1] = 0;
	for (int i = 1; i < n; i++){
		for (int j = 1; j <= i; j++) {
			ll k = d[i][j];
			if (x[i + 1] < x[j])k += a;
			if (x[j] + 1 < x[i + 1])k += min((ll)b, (ll)a*(cum[i + 1][x[i + 1]] - cum[i + 1][x[j]]))
			d[i + 1][j] = min(d[i + 1][j], k);
		}
		int cnt = 0;
		for (int j = 1; j <= i; j++) {
			if (x[j] + 1 == x[i + 1])d[i + 1][i + 1] = d[i][j];
			if (x[j] < x[i + 1])cnt++;
		}
		d[i + 1][i + 1] = min(d[i + 1][i + 1], (ll)cnt*a + (ll)(i - cnt)*b);
	}
	for (int i = 1; i <= n; i++)ans = min(ans, d[n][i]);
	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:76:113: error: expected ';' before 'd'
   76 |                         if (x[j] + 1 < x[i + 1])k += min((ll)b, (ll)a*(cum[i + 1][x[i + 1]] - cum[i + 1][x[j]]))
      |                                                                                                                 ^
      |                                                                                                                 ;
   77 |                         d[i + 1][j] = min(d[i + 1][j], k);
      |                         ~
Language: C++

#include <bits/stdc++.h>
#define ri register
#define int long long
using namespace std; const int N=5010;
inline int read()
{
    int s=0,w=1; char ch=getchar();
    while(ch<'0'||ch>'9') {if(ch=='-') w=-1; ch=getchar(); }
    while(ch>='0'&&ch<='9') s=(s<<3)+(s<<1)+(ch^48),ch=getchar(); return s*w;
}
int n,X,Y;
int dp[N][N],p[N];
signed main()
{
	//freopen("1.in","r",stdin);
	//freopen("1.out","w",stdout);
	n=read(), X=read(), Y=read();
	for(ri int i=1;i<=n;i++) {int x=read(); p[x]=i; }
	for(ri int i=1;i<=n;i++) for(ri int j=0;j<=n;j++) dp[i][j]=LONG_LONG_MAX/2;
	for(ri int i=1;i<=n;i++)
	{
		for(ri int j=0;j<=n;j++)
		{
			if(p[i]==j) dp[i][j]=min(dp[i-1][j-1],dp[i][j]);
			if(j<p[i]) dp[			if(j<p[i]) dp[i][j]=min(dp[i][j],dp[i-1][j]+Y);
i][j]=min(dp[i][j],dp[i-1][j]+Y);
			else dp[i][j]=min(dp[i][j],dp[i-1][j]+X);
		}
		for(ri int j=1;j<=n;j++) dp[i][j]=min(dp[i][j],dp[i][j-1]);
	}
	printf("%lld\n",dp[n][n]);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:20: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   18 |         for(ri int i=1;i<=n;i++) {int x=read(); p[x]=i; }
      |                    ^
a.cc:19:20: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   19 |         for(ri int i=1;i<=n;i++) for(ri int j=0;j<=n;j++) dp[i][j]=LONG_LONG_MAX/2;
      |                    ^
a.cc:19:45: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   19 |         for(ri int i=1;i<=n;i++) for(ri int j=0;j<=n;j++) dp[i][j]=LONG_LONG_MAX/2;
      |                                             ^
a.cc:20:20: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   20 |         for(ri int i=1;i<=n;i++)
      |                    ^
a.cc:22:28: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   22 |                 for(ri int j=0;j<=n;j++)
      |                            ^
a.cc:25:57: error: expected primary-expression before 'if'
   25 |                         if(j<p[i]) dp[                  if(j<p[i]) dp[i][j]=min(dp[i][j],dp[i-1][j]+Y);
      |                                                         ^~
a.cc:25:40: error: expected ']' before 'if'
   25 |                         if(j<p[i]) dp[                  if(j<p[i]) dp[i][j]=min(dp[i][j],dp[i-1][j]+Y);
      |                                       ^~                ~~
      |                                        ]
a.cc:26:2: error: expected ';' before ']' token
   26 | i][j]=min(dp[i][j],dp[i-1][j]+Y);
      |  ^
      |  ;
a.cc:27:25: error: 'else' without a previous 'if'
   27 |                         else dp[i][j]=min(dp[i][j],dp[i-1][j]+X);
      |                         ^~~~
a.cc:29:28: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   29 |                 for(ri int j=1;j<=n;j++) dp[i][j]=min(dp[i][j],dp[i][j-1]);
      |                            ^
Language: Java

import java.util.Scanner;

// https://atcoder.jp/contests/agc032/tasks/agc032_d
public class RotationSort {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        long a = sc.nextInt();
        long b = sc.nextInt();
        long[] p = new long[n];
        for (int i = 0; i < n; i++) {
            p[i] = sc.nextInt();
        }
        // costDP[i][j] = cost to sort the first i elements, moving some to
        // the right at cost A, such that the maximum element not moved to
        // the right has value <=j.
        long[][] costDP = new long[n][n + 1];
        for (int i = 0; i < n; i++) {
            costDP[i][0] = a * (i + 1);
        }
        for (int j = 0; j < p[0]; j++) {
            costDP[0][j] = a;
        }
        for (int i = 1; i < n; i++) {
            for (int j = 1; j <= n; j++) {
                if (j < p[i]) {
                    costDP[i][j] = Math.min(costDP[i][j - 1], costDP[i - 1][j] + a);
                } else if (j > p[i]) {
                    costDP[i][j] = Math.min(costDP[i][j - 1], costDP[i - 1][j] + b);
                } else {
                    costDP[i][j] = Math.min(costDP[i][j - 1], costDP[i - 1][j]);
                }
            }
        }

        long bestCost = costDP[n - 1][0];
        for (int i = 1; i <= n; i++) {
            bestCost = Math.min(costDP[n - 1][i], bestCost);
        }
        System.out.println(bestCost);
    }
}


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

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

typedef long long ll;
typedef pair <int, int> pii;

const ll MAX_N = 5e3 + 15, inf = 1000000LL * 1000000LL * 1000000LL;
ll n, L, R, ans = inf, ind = 0;
ll index[MAX_N];
ll Arr[MAX_N];
ll cntl[MAX_N][MAX_N];
ll cntb[MAX_N][MAX_N];

ll dp[MAX_N];
set <pii> Set, Set2;

void processMin() {
	for (ll i = 0; i < n; i++) {
		ll l = 0, b = 0;
		for (ll j = i - 1; 0 <= j; j--) {
			l += (Arr[j] < Arr[i]);
			b += (Arr[j] > Arr[i]);
			
			cntl[i][j] = l;
			cntb[i][j] = b;
		}
	}
	
	for (ll i = 0; i < n; i++) {
		ll l = 0, b = 0;
		for (ll j = i + 1; j < n; j++) {
			l += (Arr[j] < Arr[i]);
			b += (Arr[j] > Arr[i]);
			
			cntl[i][j] = l;
			cntb[i][j] = b;
		}
	}
}

int main() {
//	ios::sync_with_stdio(false), cin.tie(0);
	cin >> n >> L >> R;
	swap(L, R);
	
	for (ll i = 0; i < n; i++) {
		cin >> Arr[i];
		
		index[Arr[i]] = i;
	}
	
	processMin();
	
	ind = Arr[0];
	for (ll i = 1; i < n; i++) {
		if (ind > Arr[i]) {
			dp[i] = cntb[i][0] * R;
			ind = Arr[i];
		}
		else
			dp[i] = inf;
			
		int Max = -1;
		for (ll j = i - 1; ~j; j--)
			if (Arr[j] < Arr[i] && Arr[j] > Max) {
				ll l = min(cntl[j][i - 1], cntl[i][j + 1]);
				ll b = min(cntb[j][i - 1], cntb[i][j + 1]);
				
				dp[i] = min(dp[i], dp[j] + l * L + b * R);
				Max = Arr[j];
			}
	}
	
	ind = -1;
	for (ll i = n - 1; ~i; i--) {
		if (Arr[i] > ind) {
			ans = min(ans, dp[i] + cntl[i][n - 1] * L);
			ind = Arr[i];
		}
	}
	
	cout << ans << "\n";
	return 0;
}

Compiler output:
a.cc:9:15: error: 'll index [5015]' redeclared as different kind of entity
    9 | ll index[MAX_N];
      |               ^
In file included from /usr/include/string.h:462,
                 from /usr/include/c++/14/cstring:43,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:121,
                 from a.cc:1:
/usr/include/strings.h:50:20: note: previous declaration 'const char* index(const char*, int)'
   50 | extern const char *index (const char *__s, int __c)
      |                    ^~~~~
a.cc: In function 'int main()':
a.cc:49:22: error: invalid types '<unresolved overloaded function type>[ll {aka long long int}]' for array subscript
   49 |                 index[Arr[i]] = i;
      |                      ^
Language: C++

#include "bits/stdc++.h"
using namespace std;
typedef long long LL;
LL v[6000],p[6000],d[2][6000];
int main(){LL N,L,R,k,b;
cin>>N>>R>>L;
for(LL i=0;i<N;i++)cin>>v[i];
for(LL i=0;i<N;i++)p[v[i]]=i;
for(LL i=1;i<=N;i++){k=i&1;
b=1e17;
for(LL j=0;j<=N+1;j++){
b=min(b,d[k^1][j]);
if(p[i]+1>j)d[k][j]=b+L;
else if(p[i]+1==j)d[i][j]=b;
else d[k][j]=b+R;}}
R=1e17;
for(LL i=0;i<=N+1;i++)R=min(R,d[N&1][i]);
cout<<r<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:7: error: 'r' was not declared in this scope
   18 | cout<<r<<endl;
      |       ^
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;
using ll = long long;

int main() {
  ll N, A, B;
  cin >> N >> A >> B;
  vector<ll> P;
  P.push_back(0);
  for(int i = 0; i < N; i++) {
    ll p;
    cin >> p;
    P.push_back(p);
  }
  P.push_back(N + 1);
  N = A.size();
  vector<ll> dp(N, 1LL << 62);
  dp[0] = 0;
  for(int i = 0; i < N; i++) {
    ll acc = 0;
    for(int j = i - 1; j >= 0; j--) {
      if (P[j] < P[i]) {
        dp[i] = min(dp[i], dp[j] + acc);
        acc += B;
      } else {
        acc += A;
      }
    }
  }
  cout << dp.back() << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:9: error: request for member 'size' in 'A', which is of non-class type 'll' {aka 'long long int'}
   19 |   N = A.size();
      |         ^~~~
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;
using ll = long long;

int main() {
  ll N, A, B;
  cin >> N >> A >> B;
  vector<ll> A;
  A.push_back(0);
  for(int i = 0; i < N; i++) {
    ll a;
    cin >> a;
    A.push_back(a);
  }
  A.push_back(N + 1);
  N = A.size();
  vector<ll> dp(N, 1LL << 62);
  dp[0] = 0;
  for(int i = 0; i < N; i++) {
    ll acc = 0;
    for(int j = i - 1; j >= 0; j--) {
      if (A[j] < A[i]) {
        dp[i] = min(dp[i], dp[j] + acc);
        acc += B;
      } else {
        acc += A;
      }
    }
  }
  cout << dp.back() << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:14: error: conflicting declaration 'std::vector<long long int> A'
   11 |   vector<ll> A;
      |              ^
a.cc:9:9: note: previous declaration as 'll A'
    9 |   ll N, A, B;
      |         ^
a.cc:12:5: error: request for member 'push_back' in 'A', which is of non-class type 'll' {aka 'long long int'}
   12 |   A.push_back(0);
      |     ^~~~~~~~~
a.cc:16:7: error: request for member 'push_back' in 'A', which is of non-class type 'll' {aka 'long long int'}
   16 |     A.push_back(a);
      |       ^~~~~~~~~
a.cc:18:5: error: request for member 'push_back' in 'A', which is of non-class type 'll' {aka 'long long int'}
   18 |   A.push_back(N + 1);
      |     ^~~~~~~~~
a.cc:19:9: error: request for member 'size' in 'A', which is of non-class type 'll' {aka 'long long int'}
   19 |   N = A.size();
      |         ^~~~
a.cc:25:12: error: invalid types 'll {aka long long int}[int]' for array subscript
   25 |       if (A[j] < A[i]) {
      |            ^
a.cc:25:19: error: invalid types 'll {aka long long int}[int]' for array subscript
   25 |       if (A[j] < A[i]) {
      |                   ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,a,n) for (int i=a;i<n;i++)
#define per(i,a,n) for (int i=n-1;i>=a;i--)
const int N=5010;
int n,a,b,x,p[N];
ll dp[N][N];
int main() {
	scanf("%d%d%d",&n,&a,&b);
	rep(i,1,n+1) scanf("%d",&x),p[x]=i;
	memset(dp,0x20,sizeof(dp));
	dp[0][0]=0;
	rep(i,1,n+1) rep(j,1,i) {
		if (p[i]>p[j]) {
			dp[i][i]=min(dp[i][i],dp[i-1][j]);
			dp[i][j]=min(dp[i][j],dp[i-1][j]+b);
		} else
			dp[i][j]=min(dp[i][j],dp[i-1][j]+a);
	}
	printf("%lld\n",*min_element(dp[n],dp[n]+n+1));
}

Compiler output:
a.cc:7:1: error: 'll' does not name a type
    7 | ll dp[N][N];
      | ^~
a.cc: In function 'int main()':
a.cc:11:16: error: 'dp' was not declared in this scope; did you mean 'p'?
   11 |         memset(dp,0x20,sizeof(dp));
      |                ^~
      |                p
Language: C++

#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=(a);i<=(b);i++)
#define per(i,a,b) for(int i=(a);i>=(b);i--)
#define REP(i,n) for(int i=(0);i<(n);i++)
#define fi first
#define se second
#define pb push_back
#define mp make_pair
using namespace std;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef long long ll;

template<class T> inline void read(T &x){
	int f=0;x=0;char ch=getchar();
	for(;!isdigit(ch);ch=getchar())f|=(ch=='-');
	for(;isdigit(ch);ch=getchar())x=x*10+ch-'0';
	if(f)x=-x;
}

const int N=200005;
int a[N],n,m;

inline int chk(int lim){
	int p=2*n;
	rep(i,1,2*n){
		int t=upper_bound(a+1,a+2*n+1,lim-a[i])-a-1;
		p=min(p,i+t-1);
	}
	int l=0;
	per(i,2*n,1){
		t=lower_bound(a+1,a+2*n+1,m-a[i])-a;
		l=max(l,t+i-1-2*n);
	}
	if(p&1)p--;
	if(l&1)l++;
	if(p>l)return 0;
	for(int x=l+1,y=2*n;x<y;x++,y--)
		if(a[x]+a[y]>m+lim)return 0;
	return 1;
}

int main(){
	read(n),read(m);
	rep(i,1,2*n)read(a[i]);
	sort(a+1,a+2*n+1);
	int l=0,r=m;
	for(int mid;l<r;){
		mid=(l+r)>>1;
		if(chk(mid))r=mid;
		else l=mid+1;
	}
	printf("%d\n",l);
	return 0;
}

Compiler output:
a.cc: In function 'int chk(int)':
a.cc:32:17: error: 't' was not declared in this scope
   32 |                 t=lower_bound(a+1,a+2*n+1,m-a[i])-a;
      |                 ^
Language: C++

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

#define f(i,a,b) for (int i = a; i < b; i++)

int main() {
  	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
  
  int n,m; cin>>n>>m;
  int a[2*n];
  f(i,0,2*n) cin>>a[i];
  sort(a,a+2*n);
  int lo = 0, hi = n;
  auto check = [&](int x) {
  	f(i,0,2*x) if (a[i]+a[2*x-1-i] >= m)
     	return 0;
    f(i,2*x,2*n) if (a[i]+a[2*n-1-i] < m)
    	return 0;
    return 1;
  };
  while (lo<=hi) {
    int mid = (lo+hi)/2;
  	if (valid(mid)) hi = mid-1;
    else lo = mid+1;
  }
  // lo is now the breakpoint
  int ans = 0;
  f(i,0,2*lo) ans = max(ans,(a[i]+a[2*lo-1-i])%m);
  f(i,2*lo,2*n) ans = max(ans,(a[i]+a[2*n-1-i])%m);
  cout << ans << endl;
  	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:24:13: error: 'valid' was not declared in this scope
   24 |         if (valid(mid)) hi = mid-1;
      |             ^~~~~
Language: C++

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

const int N=200010;
int n,m,a[N];

bool check(int p)
{
    for(int i=p;i<=n*2;i++)
        if(a[i]+a[n*2-i+p]<m) return 0;
    return 1;
}

int main()
{
    scanf("%d%d",&n,&m);
    for(int i=1;i<=n*2;i++) scanf("%d",a+i);
    sort(a+1,a+1+n*2);
    int l=0,r=n-1,mid,res=r;
    while(l<=r)
    {
        mid=(l+r)/2;
        if(check(mid*2+1)) res=mid,r=mid-1;
        else l=mid+1;
    }
    res<<=1;
    int ans=0;
    for(int i=1;i<res;i++)
        ans=max(ans,a[i]+a[res-i+1]);
    for(int i=res;i<=n*2;i++)
        ans=max(ans,a[i]+a[n*2-i+res]-m);
    printf("%d\n

Compiler output:
a.cc:32:12: warning: missing terminating " character
   32 |     printf("%d\n
      |            ^
a.cc:32:12: error: missing terminating " character
   32 |     printf("%d\n
      |            ^~~~~
a.cc: In function 'int main()':
a.cc:32:12: error: expected primary-expression at end of input
   32 |     printf("%d\n
      |            ^
a.cc:32:12: error: expected '}' at end of input
a.cc:15:1: note: to match this '{'
   15 | {
      | ^
Language: C++

// saihemanth9019
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define ld long double
#define mod 1000000007LL
#define eps 1e-13
#define PI 3.141592653589793238L
#define INF 1000000011
#define INFLL 1000000000000000011LL
#define endl '\n'
#define vi vector<int>
#define vs vector<string>
#define vll vector<long long>
#define vc vector<char>
#define vs vector<string>
#define pii pair<int, int>
#define pll pair<long long, long long>
#define pil pair<int, long long>
#define pli pair<long long, int>
#define pcc pair<char, char>
#define pdd pair<double, double>
#define mp make_pair
#define F first
#define S second
#define pb(x) push_back(x)
#define fo(i,a,n) for(i = (a); i < (n); i++)
#define foi(i,a,n) for(i = (a); i <= (n); i++)
#define pd(x) cout<<x
#define sd(x) cin>>x
#define nl cout<<endl
#define gtl(x) getline(cin, (x))
#define flsh fflush(stdout)
#define sws ios_base::sync_with_stdio(false); cin.tie(0)
#define gcd __gcd
#define clr(x) memset(x,0,sizeof(x))
#define all(a) (a).begin(), (a).end()
#define foreach(i,a) for(__typeof((a).begin()) i = (a).begin(); i != (a).end(); ++i)
#define sz(a) (int)((a).size())
//int a[25]= { 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97 };
//int dw[4][2]={{0,1},{1,0},{0,-1},{-1,0}};
//int dw[8][2]={{0,1},{1,0},{0,-1},{-1,0},{1,1},{1,-1},{-1,1},{-1,-1}};
//ll fibonacci[2][2] = {{0,1},{1,1}};
//ll identity[2][2] = {{1,0},{0,1}};

ll n,m;
vll v;

bool poss(ll val) {
	ll lo = 2*val; hi = 2*n-1;
	while(lo < hi) {
		if (v[lo] + v[hi] < m) return false;
		lo++; hi--;
	}
	return true;
}


int main() {
	ll i,j,k;
	cin>>n>>m;
	v.resize(2*n);
	fo(i,0,2*n) cin>>v[i];
	sort(all(v));
	ll lo = -1, hi = n;
	while (hi-lo > 1) {
		ll mid = ((lo+hi)/2);
		if (poss(mid)) {
			hi = mid;
		} else {
			lo = mid+1;
		}
	}
	ll val = (poss(lo)?lo:hi);
	ll ans = -INFLL;
	lo = 0; hi = 2*val - 1;
	while(lo < hi) {
		ans = max(ans, (v[lo++]+v[hi--])%m);
	}
	lo = 2*val; hi = 2*n-1;
	while(lo < hi) {
		ans = max(ans, (v[lo++]+v[hi--])%m);
	}
	cout << ans << endl;
	return 0;
}

Compiler output:
a.cc: In function 'bool poss(long long int)':
a.cc:51:24: error: 'hi' was not declared in this scope; did you mean 'vi'?
   51 |         ll lo = 2*val; hi = 2*n-1;
      |                        ^~
      |                        vi
Language: C++

#include<bits/stdc++.h>
using namespace std;
bool can(int a[], int N, int M, int k) {
  for (int i = 0; i <= k; i ++) {
    if (a[i] + a[k - i] >= M) return false;
  }
  for (int i = k + 1; i < N; i ++) {
    if (a[i] + a[N - i + k] < M) return false;
  }
  return true;
}
int big(int a[], int l, int r) {
  int ans = a[l] + a[r];
  for (int i = l; i <= r; i ++) {
    if (a[i] + a[l + r - i] > ans) ans = a[i] + a[l + r - i];
  }
  return ans;
}
int main () {
  int N, M;
  cin >> N >> M;
  N *= 2;
  vector<int>b(N);
  for (int i = 0; i < N; i ++) cin >> b[i];
  sort(b.begin(), b.end());
  int ma = N / 2;
  int mi = 0;
  while(ma != mi) {
    int mu = (ma + mi) / 2;
    mu *= 2;
    if (can(b[], N, M, mu)) ma = mu / 2;
    else mi = mu / 2 + 1;
  }
  ma *= 2;
  int a = big(b[], 0, ma);
  int an = big(b[], ma + 1, N - 1);
  int ans = min(a, an);
  cout << ans << endl;
}
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:31:15: error: expected primary-expression before ']' token
   31 |     if (can(b[], N, M, mu)) ma = mu / 2;
      |               ^
a.cc:35:17: error: expected primary-expression before ']' token
   35 |   int a = big(b[], 0, ma);
      |                 ^
a.cc:36:18: error: expected primary-expression before ']' token
   36 |   int an = big(b[], ma + 1, N - 1);
      |                  ^
Language: C++

#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <vector>
#include <cstring>
#include <queue>
#include <set>
#include <functional>
#include <map>
#include <cmath>
#include <deque>
#include <string>
#define SIZE 400005

using namespace std;
typedef long long int ll;
typedef pair <int,int> P;

ll A[SIZE];
int rt[SIZE];
int left[SIZE],right[SIZE];
int n,sz;
ll M;

bool check(ll X)
{
	int s=0,t=0;
	while(s<4*n&&A[s]+A[0]<M) s++;
	while(t<4*n&&A[t]+A[0]<=M+X) t++;
	for(int i=0;i<2*n;i++)
	{
		while(s>=0&&A[s]+A[i]>=M) s--;
		while(t>=0&&A[t]+A[i]>M+X) t--;
		left[i]=s+1,right[i]=t;
	}
	for(int i=0;i<4*n;i++) rt[i]=0;
	for(int i=0;i<4*n;i++)
	{
		int s=left[i%(2*n)],t=right[i%(2*n)]+1;
		s=max(s,i);
		if(i%2==s%2) s++;
		if(i%2==t%2) t++;
		s=(s+i-1)/2;
		t=(t+i-1)/2;
		t=min(t,i+n);
		if(s<t)
		{
			rt[s]++;
			rt[t]--;
		}
	}
	t=0;
	while(t<4*n&&A[t]+A[0]<=Z) t++;
	for(int i=0;i<2*n;i++)
	{
		while(t>=0&&A[t]+A[i]>Z) t--;
		left[i]=0,right[i]=t;
	}
	for(int i=0;i<4*n;i++)
	{
		int s=left[i%(2*n)],t=right[i%(2*n)]+1;
		s=max(s,i);
		if(i%2==s%2) s++;
		if(i%2==t%2) t++;
		s=(s+i-1)/2;
		t=(t+i-1)/2;
		t=min(t,i+n);
		if(s<t)
		{
			rt[s]++;
			rt[t]--;
		}
	}
	for(int i=1;i<4*n;i++) rt[i]+=rt[i-1];
	for(int i=0;i<4*n;i++) if(rt[i]>=n) return true;
	return false;
}
int main()
{
	scanf("%d %lld",&n,&M);
	sz=4*n;
	for(int i=0;i<2*n;i++) scanf("%lld",&A[i]);
	sort(A,A+2*n);
	for(int i=2*n;i<4*n;i++) A[i]=A[i-2*n]+M;
	//check(5);
	//return 0;
	ll l=-1,r=M;
	while(r-l>1)
	{
		ll d=(l+r)/2;
		if(check(d)) r=d;
		else l=d;
		//printf("%d %d\n",l,r);
	}
	printf("%lld\n",r);
	return 0;
}


Compiler output:
a.cc: In function 'bool check(ll)':
a.cc:53:33: error: 'Z' was not declared in this scope
   53 |         while(t<4*n&&A[t]+A[0]<=Z) t++;
      |                                 ^
a.cc:56:39: error: 'Z' was not declared in this scope
   56 |                 while(t>=0&&A[t]+A[i]>Z) t--;
      |                                       ^
Language: C++


#include <cstdio>
#include <algorithm>

using namespace std;
const int MOD(1000000000 + 7);

constexpr int Add(int a, int b)
{
	return a * 1LL * b % MOD;
}

void exgcd(int a, int b, int &x, int &y)
{
	if (b == 0)
		x = 1, y = 0;
	else
		exgcd(b, a % b, y, x), y -= x * (a / b);
}

inline int inverse(int a)
{
	int invx, invy;
	exgcd(a, MOD, invx, invy);
	return (invx % MOD + MOD) % MOD;
}

int N, Fac[Max_N], Inv[Max_N];

int main()
{
	scanf("%d", &N);
	Fac[0] = 1;
	for (int i = 1;i <= max(N, 3);++i)
		Fac[i] = Mult(Fac[i - 1], i);
	Inv[max(N, 3)] = inverse(Fac[max(N, 3)]);
	for (int i = N - 1;i >= 0;--i)
		Inv[i] = Mult(Inv[i + 1], i + 1);
	for (int i = 1;i <= max(N, 3);++i)
		Inv[i] = Mult(Inv[i], Fac[i - 1]);
	int Ans = 0, Com = Inv[N];
	for (int i = 0;i <= N - 1;++i)
		Com = Mult(Com, Inv[3]), Ans = Add(Ans, Mult(Com, Inv[N - i]));
	printf("%d", Ans);
	return 0;
}

Compiler output:
a.cc:28:12: error: 'Max_N' was not declared in this scope
   28 | int N, Fac[Max_N], Inv[Max_N];
      |            ^~~~~
a.cc:28:24: error: 'Max_N' was not declared in this scope
   28 | int N, Fac[Max_N], Inv[Max_N];
      |                        ^~~~~
a.cc: In function 'int main()':
a.cc:33:9: error: 'Fac' was not declared in this scope
   33 |         Fac[0] = 1;
      |         ^~~
a.cc:35:26: error: 'Mult' was not declared in this scope
   35 |                 Fac[i] = Mult(Fac[i - 1], i);
      |                          ^~~~
a.cc:36:9: error: 'Inv' was not declared in this scope
   36 |         Inv[max(N, 3)] = inverse(Fac[max(N, 3)]);
      |         ^~~
a.cc:38:26: error: 'Mult' was not declared in this scope
   38 |                 Inv[i] = Mult(Inv[i + 1], i + 1);
      |                          ^~~~
a.cc:40:26: error: 'Mult' was not declared in this scope
   40 |                 Inv[i] = Mult(Inv[i], Fac[i - 1]);
      |                          ^~~~
a.cc:43:23: error: 'Mult' was not declared in this scope
   43 |                 Com = Mult(Com, Inv[3]), Ans = Add(Ans, Mult(Com, Inv[N - i]));
      |                       ^~~~
Language: C++

#include <iostream>
#include <cstdlib>
#include <csdio>
#include <cstring>

using namespace std; 

const int maxn = 1e5, mod = 1e9 + 7; 

int n, cnt[26];     
char s[maxn + 5]; 


int main() {
    scanf("%d", &n);
    scanf("%s", s + 1); 
    for (int i = 1; i <= n; i++) {
        cnt[s[i] - 'a']++; 
    }
    int ans = 1; 
    for (int i = 0; i < 26; i++) {
        ans = 1ll * ans * (cnt[i] + 1) % mod; 
    }
    cout << (ans - 1 + mod) % mod  << '\n'; 
    return 0; 
}

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

import bisect,collections,copy,itertools,math,string
import sys
def I(): return int(sys.stdin.readline().rstrip())
def LI(): return list(map(int,sys.stdin.readline().rstrip().split()))
def S(): return sys.stdin.readline().rstrip()
def LS(): return list(sys.stdin.readline().rstrip().split())
def main():
    n = I()
    s = S()
    ans = 1
    num = 10**9 + 7
    count = collections.Counter(s)

    for value in count.values():
        ans *= value+1
        ans %= num

    ans -= 1
    ans % num
    print(ans)
        
main()


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import bisect,collections,copy,itertools,math,string
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define mod 1000000007
#define ll long long int
#define pb push_back
typedef pair<ll,ll> ipair;
#define F first
#define S second
 
/*
//functions from gfg
 
long long int power(long long int x,long long int y,long long  int p)
{
    long long int res = 1;     // Initialize result
 
    x = x % p;  // Update x if it is more than or 
                // equal to p
 
    while (y > 0)
    {
        // If y is odd, multiply x with result
        if (y & 1)
            {//d=(long double)x/p;
            res = (res*x) % p;
            }
 
        // y must be even now
        y = y>>1; // y = y/2
        x=(x*x)%p;
        
    }
    return res%p;
}
 
long long int gcd(long long int a,long long int b) 
{ 
    if (a == 0) 
        return b; 
    return gcd(b % a, a); 
}
 
long long int binomialCoeff(long long int n, ll k) 
{ 
    ll res = 1; 
  
    // Since C(n, k) = C(n, n-k) 
    if (k > n - k) 
        k = n - k; 
  
    // Calculate value of [n*(n-1)*---*(n-k+1)] / [k*(k-1)*---*1] 
    for (ll i = 0; i < k; ++i) 
    { 
        res *= (n - i); 
        res /= (i + 1); 
    } 
  
    return res; 
} 
 

void sieve(int n, vector<ll> &primes) 
{ 
    vector<int> prime(n,1);
    ll p;
    for ( p=2; p*p<=n; p++) 
    { 
        // If prime[p] is not changed, then it is a prime 
        if (prime[p] == 1) 
        { 
            
            for (int i=p*p; i<=n; i += p) 
                prime[i] = 0; 
        } 
    } 
  
    for(p=2;p<=n;p++)
    {
        if(prime[p])
        primes.pb(p);
    }
   
} 


void dfs(vector<ll> adj[] ,ll src,vector<ll> &vis)
{
    vis[src]=1;
    for(ll i=0;i<adj[src].size();i++)
    {
        if(vis[adj[src][i]]==0)
        dfs(adj,adj[src][i],vis)
    }
}
 
*/

int main() {
	ios_base::sync_with_stdio(false);
    std::cin.tie(NULL);
    std::cout.tie(NULL);
    
    
	ll n,i,j,p,k,m,ans=0;
    cin>>n;
    string a;
    cin>>a;
    vector<int> a(26,0);
    for(i=0;i<n;i++)
    {
        a[a[i]-'a']++;
    }
    ans=1;
    for(i=0;i<26;i++)
    {
        ans*=(a[i]+1);
        ans%=mod;
    }
    ans--;
    ans+=mod;
    ans%=mod;
    cout<<ans<<endl;
    
    
    
    
    
    
    // for(i=0;i<n;i++)
    // {
    //     cout<<a[i]<<" ";
    // }
    // cout<<endl;
    
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:108:17: error: conflicting declaration 'std::vector<int> a'
  108 |     vector<int> a(26,0);
      |                 ^
a.cc:106:12: note: previous declaration as 'std::string a'
  106 |     string a;
      |            ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define int long long
typedef pair<int,int> P;
int INF = 1e9+7;
int dx[4] = {1, 0, -1, 0};
int dy[4] = {0, 1, 0, -1};
signed main() {
    int N;
    string S;
    cin >> N >> S;
    int cnt[26] = {};
    for(int i = 0; i < S.size(); i++) {
        cnt[S[i]-'a']++;
    }
    int ans = 1;
    for(int i = 0; i < 26; i++) {
        ans*=cnt[i];
        ans = ans%iNF;
    }
    cout << ans-1 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:19: error: 'iNF' was not declared in this scope; did you mean 'INF'?
   19 |         ans = ans%iNF;
      |                   ^~~
      |                   INF
Language: C++

/* Simplicity and Goodness */
 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace __gnu_pbds;
using namespace std;
typedef tree<int, null_type, less<int>, rb_tree_tag,
            tree_order_statistics_node_update> indexed_set;

void my_dbg() { cout << endl; }
template<typename Arg, typename... Args> void my_dbg(Arg A, Args... B) 
{ cout << ' ' << A; my_dbg(B...); }
#define dbg(...)  cout << "(" << #__VA_ARGS__ << "):", my_dbg(__VA_ARGS__)

#define scn(n) scanf("%d", &n)
#define lscn(n) scanf("%lld", &n)
#define pri(n) printf("%d ", (int)(n))
#define prin(n) printf("%d\n", (int)(n))
#define lpri(n) printf("%lld ", n)
#define lprin(n) printf("%lld\n", n)
#define rep(i,a,b) for(int i=(int)(a); i<(int)(b); i++)
#define pb push_back
#define mp make_pair
#define F first
#define S second

using ll = long long;
using vi = vector<int>;
using vl = vector<ll>;

const int inf = INT_MAX;
const int ninf = INT_MIN;
const int mod = 1e9+7;
const int N = 2e5+2;


void solve()
{
    int n;
    scn(n);

    string s;
    cin >> s;

    map<int, int> fa;

    for(auto c : s)
        fa[c] ++;

    int ans = 1;

    for(auto x : fa) 
        ans = (1LL * ans * (1 + x.S)) % mod;

    ans = (ans - 1 mod) % mod;

    prin(ans);
}

int main()
{
    int t = 1;
    // scn(t);

    while(t --) {
        solve();
    }
    return 0;
}

Compiler output:
a.cc: In function 'void solve()':
a.cc:57:19: error: expected ')' before 'mod'
   57 |     ans = (ans - 1 mod) % mod;
      |           ~       ^~~~
      |                   )
Language: C++

#include<bits/stdc++.h>

using namespace std;

int arr[100];

int main(){
    int N, diff = 0;
    string S;
    cin >> N;
    cin >> S;
    for(int i=0; i<S.length(); i++){
        arr[S[i] - 96]++;
        if(arr[S[i] - 96] == 1) diff++ ;
    }
    int ans = 1;
    for(int i=1; i<=26; i++){
        ans*= arr[i] + 1;
        ans = ans % (10e9 + 7);
    }
    cout << ans - 1 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:19: error: invalid operands of types 'int' and 'double' to binary 'operator%'
   19 |         ans = ans % (10e9 + 7);
      |               ~~~ ^ ~~~~~~~~~~
      |               |           |
      |               int         double
Language: C++

#include <bits/stdc++.h>
using namespace std;
int INF = 1e9+7;
int main() {
    int N;
    string S;
    cin >> N >> S;
    vector<int>cnt(26,1);
    for(int i = 0; i < N; i++) {
        cnt[S[i]-'0']++;
    }
    res = 1;
    for(int i = 0; i < 26; i++) {
        res*=cnt[i];
    }
    cout << res-1 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:5: error: 'res' was not declared in this scope
   12 |     res = 1;
      |     ^~~
Language: C++

#include <bits/stdc++.h>
#define ll long long
#define ls id << 1
#define rs id << 1 | 1
#define mem(array, value, size, type) memset(array, value, ((size) + 5) * sizeof(type))
#define memarray(array, value) memset(array, value, sizeof(array))
#define pb(x) push_back(x)
#define st(x) (1LL << (x))
#define pii pair<int, int>
#define mp(a, b) make_pair((a), (b))
#define Flush fflush(stdout)
using namespace std;
const int N = 500050;
const int inf = 0x3f3f3f3f;
const ll llinf = 0x3f3f3f3f3f3f;
const ll mod = 1e9 + 7;
clock_t TIME_START, TIME_END;
void program_end()
{
#ifdef ONLINE
    printf("\nTime used: %.6lf(s)\n", ((double)TIME_END - TIME_START) / CLOCKS_PER_SEC);
    system("pause");
#endif
}
int n;
char s[N];
ll cnt[N];

void solve()
{
    cin >> n;
    scanf("%s", s + 1);
    for (int i = 1; i <= n; ++i)
        cnt[a[i] - 'a']++;
    ll ans = 1;
    for (int i = 0; i < 26;++i)
    {
        ans *= (cnt[i] + 1);
        ans %= mod;
    }
    ans--;
    ans += mod, ans %= mod;
    printf("%lld\n", ans);
}

int main()
{
    TIME_START = clock();
    int Test = 1;
    // cin >> Test;
    while (Test--)
        solve();
    TIME_END = clock();
    program_end();
    return 0;
}

Compiler output:
a.cc: In function 'void solve()':
a.cc:34:13: error: 'a' was not declared in this scope
   34 |         cnt[a[i] - 'a']++;
      |             ^
Language: C++


#include <stdio.h>
#include <string.h>
#include <limits.h>
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <map>
#include <set>
#include <queue>

typedef unsigned long long ULLONG;
typedef long long LLONG;
static const LLONG MOD_NUM = 1000000007;

template<class _T> static void getint(_T& a) {
	const char* fmt = " %d";
	if (sizeof(_T) == sizeof(long long)) {
		fmt = " %lld";
	}

	if (scanf(fmt, &a) < 0) {
		printf("g1int Error\n");
	}
}
template<class _T> static void getint(_T& a, _T& b) {
	const char* fmt = " %d %d";
	if (sizeof(_T) == sizeof(long long)) {
		fmt = " %lld %lld";
	}

	if (scanf(fmt, &a, &b) < 0) {
		printf("g2int Error\n");
	}
}
template<class _T> static void getint(_T& a, _T& b, _T& c) {
	const char* fmt = " %d %d %d";
	if (sizeof(_T) == sizeof(long long)) {
		fmt = " %lld %lld %lld";
	}

	if (scanf(fmt, &a, &b, &c) < 0) {
		printf("g3int Error\n");
	}
}

static void AGC031A();

#if 1
int main()
{
	AGC031A();
	fflush(stdout);
	return 0;
}
#endif

static void AGC031A()
{
	int N;
	getint(N);

	std::string orgs;
	std::cin >> orgs;

	std::map<char, LLONG> chars;
	std::vector<LLONG> dp(N + 1, 0);
	PermComb<LLONG> cmb(30, MOD_NUM);
	for (int i = 1; i <= N; i++) {
		dp[i] = dp[i - 1];
		
		LLONG use = 1;
		int kind = chars.size();
		int max = kind;
		for(auto it = chars.begin(); it != chars.end(); it++) {
			if (it->first != orgs[i - 1]) {
				use = (use * (it->second + 1)) % MOD_NUM;
			}
		}

		dp[i] = (dp[i] + use) % MOD_NUM;
		chars[orgs[i - 1]]++;
	}
	printf("%lld\n", dp[N]);
}


Compiler output:
a.cc: In function 'void AGC031A()':
a.cc:69:9: error: 'PermComb' was not declared in this scope
   69 |         PermComb<LLONG> cmb(30, MOD_NUM);
      |         ^~~~~~~~
a.cc:69:23: error: expected primary-expression before '>' token
   69 |         PermComb<LLONG> cmb(30, MOD_NUM);
      |                       ^
a.cc:69:25: error: 'cmb' was not declared in this scope
   69 |         PermComb<LLONG> cmb(30, MOD_NUM);
      |                         ^~~
Language: C++

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vll;

#define REP(i,n) for(ll i=0;i<(ll)(n);i++)
#define REPD(i,n) for(ll i=(ll)(n)-1;i>=0;i--)
#define FOR(i,a,b) for(ll i=(a);i<=(b);i++)
#define FORD(i,a,b) for(ll i=(a);i>=(b);i--)
#define ALL(x) (x).begin(),(x).end()
#define SIZE(x) ((ll)(x).size())
#define MAX(x) *max_element(ALL(x))
#define SUM(x) accumulate(ALL(x), 0)
#define print(x) cout << x;
#define println(x) cout << x << endl;
#define printd(x, f) cout << fixed << setprecision(f) << x << endl;

#define PB push_back
#define MP make_pair
#define F first
#define S second

#define INF 1000000000000
// #define MOD 10000007
#define MAXR 100000
#define PI acos(-1.0)

vll num(30, 0);

const long long MOD = 1000000007;

long long num[30];
int main() {
    int N; string S; cin >> N >> S;

    for (auto c : S) num[c - 'a']++;
    long long res = 1;
    for (int i = 0; i < 26; ++i) {
        res *= num[i] + 1;
        res %= MOD;
    }
    cout << (res + MOD - 1) % MOD << endl;
}


Compiler output:
a.cc:34:11: error: conflicting declaration 'long long int num [30]'
   34 | long long num[30];
      |           ^~~
a.cc:30:5: note: previous declaration as 'vll num'
   30 | vll num(30, 0);
      |     ^~~
Language: C++

#include<iostream>
#include<algorithm>
#include<vector>
#include<cmath>
#include<utility>
#include<cstdio>
#include<set>
#include<string>
#include<map>
#include<queue>
#include<stack>
#include <bitset>
using namespace std;
const ll mod=1e9+7;
#define rep(i,n) for(int i=0;i<n;i++)
#define rep1(i,n) for(int i=1;i<n;i++)
#define rep2(i,x,n) for(int i= x;i<n;i++)
#define all(v) v.begin(), v.end()
#define nepe(v) next_permutation(all(v))
#define F first 
#define S second
#define PB push_back 
#define MP make_pair
using ll = long long;
using vi = vector<int>; 
using vvi = vector<vi>;
using vl=vector<long long>;
using vvl = vector<vl>;
using vp =vector<pair<int,int>>;

typedef pair<int,int> P;
string s;
int k; 
ll INF = 10000000000000000;



int main(){
    int N;
    string S;
    cin >>N>>S;
    vi abc(26,0);
    rep(i,N){
        abc[S[i]-'a']++;
    }
    ll ans=1;
    rep(i,N){
        ans = ans*(abc[i]+1);
        ans %= mod;
    }
    cout <<ans-1<<endl;
}

Compiler output:
a.cc:14:7: error: 'll' does not name a type; did you mean 'all'?
   14 | const ll mod=1e9+7;
      |       ^~
      |       all
a.cc: In function 'int main()':
a.cc:49:16: error: 'mod' was not declared in this scope; did you mean 'modf'?
   49 |         ans %= mod;
      |                ^~~
      |                modf
Language: C++

#include<bits/stdc++.h>
#define int long long
using namespace std;
const int INF = 10000000000000000;
const int mod = 1000000007;
int modpow(int x, int y, int m = mod) {
	int res = 1;
	while (y) {
		if (y % 2) { res *= x; res %= m; }
		x = x * x % mod; y /= 2;
	}
	return res;
}
int test[12345678], kari[345678], aa[12345678];
signed main() {
	int n, a, ans = 0; string s; cin >> n >> s;
	ans = modpow(2, n) - 1;
	for (int h = 0; h < n; h++) {
		int z = (int)(s[h]) - 97;
		test[z]++;
	}
	for (int h = 0; h < 26; h++) {
		if (test[h] > 1) {
			ans -= modpow(2, n - test[h]) - 1; ans += mod;
		}
	}
	cout << ans % mod << endl;　return 0;
}

Compiler output:
a.cc:27:35: error: extended character 　 is not valid in an identifier
   27 |         cout << ans % mod << endl;　return 0;
      |                                   ^
a.cc: In function 'int main()':
a.cc:27:35: error: '\U00003000return' was not declared in this scope; did you mean 'sigreturn'?
   27 |         cout << ans % mod << endl;　return 0;
      |                                   ^~~~~~~~
      |                                   sigreturn
Language: C++

#include<iostream>
#include<string>
#include<algorithm>    
#include<cmath>
#include<map>
#include<vector>
#include<math.h>
#include<stdio.h>
#include<stack>
#include<queue>
#include<tuple>
#include<cassert>
#include<set>
//#include<bits/stdc++.h>
#define int long long
using namespace std;
const int INF = 10000000000000000;
const int mod = 1000000007;
int modpow(int x, int y, int m = mod) {
	int res = 1;
	while (y) {
		if (y % 2) { res *= x; res %= m; }
		x = x * x % mod; y /= 2;
	}
	return res;
}
int test[12345678], kari[345678], aa[12345678];
signed main() {
	int n, a, ans = 0; string s; cin >> n >> s;
	ans = modpow(2, n) - 1;
	for (int h = 0; h < n; h++) {
		test[int(s[h]) - 97]++;
	}
	for (int h = 0; h < 26; h++) {
		if (test[h] > 1) {
			ans -= modpow(2, n - test[h]) - 1;
		}
	}
	cout << ans << endl;
	cin >> n; return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:13: error: expected primary-expression before 'long'
   15 | #define int long long
      |             ^~~~
a.cc:32:22: note: in expansion of macro 'int'
   32 |                 test[int(s[h]) - 97]++;
      |                      ^~~
a.cc:32:22: error: expected ']' before 'long'
   32 |                 test[int(s[h]) - 97]++;
      |                      ^
      |                      ]
Language: C++

#include<bits/stdc++.h>
#define int long long
using namespace std;
const int INF = 10000000000000000;
const int mod = 1000000007;
int modpow(int x, int y, int m = mod) {
	int res = 1;
	while (y) {
		if (y % 2) { res *= x; res %= m; }
		x = x * x % mod; y /= 2;
	}
	return res;
}
int test[12345678], kari[345678], aa[12345678];
signed main() {
	int n, a, ans = 0; string s; cin >> n >> s;
	ans = modpow(2, n) - 1;
	for (int h = 0; h < n; h++) {
		test[int(s[h]) - 97]++;
	}
	for (int h = 0; h < 26; h++) {
		if (test[h] > 1) {
			ans -= modpow(2, n - test[h]) - 1;
		}
	}
	cout << ans << endl;　return 0;
}

Compiler output:
a.cc:26:29: error: extended character 　 is not valid in an identifier
   26 |         cout << ans << endl;　return 0;
      |                             ^
a.cc: In function 'int main()':
a.cc:2:13: error: expected primary-expression before 'long'
    2 | #define int long long
      |             ^~~~
a.cc:19:22: note: in expansion of macro 'int'
   19 |                 test[int(s[h]) - 97]++;
      |                      ^~~
a.cc:19:22: error: expected ']' before 'long'
   19 |                 test[int(s[h]) - 97]++;
      |                      ^
      |                      ]
a.cc:26:29: error: '\U00003000return' was not declared in this scope; did you mean 'sigreturn'?
   26 |         cout << ans << endl;　return 0;
      |                             ^~~~~~~~
      |                             sigreturn
Language: C++

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

int main(){
  int N;
  string S;
  cin >> N >> S;
  vector<int> C(26);
  for(int i=0; i<N; i++){
    C.at(S.at(i)-'a')++;
  }
  int64_t Ans=1;
  for(int i=0; i<26; i++){
    Ans*=C.at(i)+1;
    Ans%=1000000007
  }
  cout << Ans-1 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:20: error: expected ';' before '}' token
   15 |     Ans%=1000000007
      |                    ^
      |                    ;
   16 |   }
      |   ~