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

// by adiforluls
#pragma GCC optimize ("-O2")
#include<bits/stdc++.h>
using namespace std;
#define fastestiointhewest   ios_base::sync_with_stdio(false), cin.tie(0), cout.tie(0)
#define ll          long long
#define ld          long double
#define pb          push_back
#define mp          make_pair
#define pii         pair<int,int>
#define mii         map<int,int>
#define vi          vector<int>
#define vll         vector<long long>
#define all(a)      (a).begin(),(a).end()
#define clz(a)      __builtin_clz(a) // count leading zeroes
#define ctz(a)      __builtin_ctz(a) // count trailing zeroes
#define popc(a)     __builtin_popcount(a) // count set bits (for ints only diff for ll)
#define lul         1000000007
#define rep(i,a,b)  for(int i=a;i<b;i++)
#define SIZE        1000005
#define F           first
#define S           second
#define debug(x)    cerr << #x << " = " << x << endl;
#define mod         998244353

#define TRACE

#ifdef TRACE
#define trace(...) __f(#__VA_ARGS__, __VA_ARGS__)
template <typename Arg1>
void __f(const char* name, Arg1&& arg1){
    std::cerr << name << " = " << arg1 << std::endl;
}
template <typename Arg1, typename... Args>
void __f(const char* names, Arg1&& arg1, Args&&... args){
    const char* comma = strchr(names + 1, ',');std::cerr.write(names, comma - names) << " = " << arg1<<" |";__f(comma+1, args...);
}
#else
#define trace(...)
#endif

#define endl        '\n'
const ld PI = acos(-1.0);
const int INF = 0x3f3f3f3f;

map<ll,ll> ma;
void solve()
{   
   int n; cin>>n;
   rep(i,0,n)
   {
     char s; cin>>;
     ma[s]++;
   }
   ll ans=1;
   for(auto &i:ma)
   {
     ans=(ans*(i.S+1))%lul;
   }
   ans+=lul,ans%=lul;
   cout<<ans;
}  
int main()
{   
    fastestiointhewest;
   //  #ifndef ONLINE_JUDGE
     // freopen("input.txt", "r", stdin);
     // freopen("output.txt", "w", stdout);
   //  #endif
    int t; t=1;
    while(t--){
       solve();
    }
    return 0;
}

Compiler output:
a.cc: In function 'void solve()':
a.cc:52:19: error: expected primary-expression before ';' token
   52 |      char s; cin>>;
      |                   ^
Language: C++

// by adiforluls
#pragma GCC optimize ("-O2")
#include<bits/stdc++.h>
using namespace std;
#define fastestiointhewest   ios_base::sync_with_stdio(false), cin.tie(0), cout.tie(0)
#define ll          long long
#define ld          long double
#define pb          push_back
#define mp          make_pair
#define pii         pair<int,int>
#define mii         map<int,int>
#define vi          vector<int>
#define vll         vector<long long>
#define all(a)      (a).begin(),(a).end()
#define clz(a)      __builtin_clz(a) // count leading zeroes
#define ctz(a)      __builtin_ctz(a) // count trailing zeroes
#define popc(a)     __builtin_popcount(a) // count set bits (for ints only diff for ll)
#define lul         1000000007
#define rep(i,a,b)  for(int i=a;i<b;i++)
#define SIZE        1000005
#define F           first
#define S           second
#define debug(x)    cerr << #x << " = " << x << endl;
#define mod         998244353

#define TRACE

#ifdef TRACE
#define trace(...) __f(#__VA_ARGS__, __VA_ARGS__)
template <typename Arg1>
void __f(const char* name, Arg1&& arg1){
    std::cerr << name << " = " << arg1 << std::endl;
}
template <typename Arg1, typename... Args>
void __f(const char* names, Arg1&& arg1, Args&&... args){
    const char* comma = strchr(names + 1, ',');std::cerr.write(names, comma - names) << " = " << arg1<<" |";__f(comma+1, args...);
}
#else
#define trace(...)
#endif

#define endl        '\n'
const ld PI = acos(-1.0);
const int INF = 0x3f3f3f3f;

map<ll,ll> ma;
void solve()
{   
   int n; cin>>n;
   rep(i,0,n)
   {
     char s; cin>>S;
     ma[s]++;
   }
   ll ans=1;
   for(auto &i:ma)
   {
     ans=(ans*(i.S+1))%lul;
   }
   ans+=lul,ans%=lul;
   cout<<ans;
}  
int main()
{   
    fastestiointhewest;
   //  #ifndef ONLINE_JUDGE
     // freopen("input.txt", "r", stdin);
     // freopen("output.txt", "w", stdout);
   //  #endif
    int t; t=1;
    while(t--){
       solve();
    }
    return 0;
}

Compiler output:
a.cc: In function 'void solve()':
a.cc:22:21: error: 'second' was not declared in this scope
   22 | #define S           second
      |                     ^~~~~~
a.cc:52:19: note: in expansion of macro 'S'
   52 |      char s; cin>>S;
      |                   ^
Language: C

#include <stdio.h>

int main(){
    int alphabet[26];
        for(i=0; i<26; i++){
        alphabet[i] = 0;
    }
    int N;
    int i;
    int m;
    int t;
    int flag;

    scanf("%d", &N);
    
    int str[N];


    for(i=0; i<N; i++){
        scanf("%d", str[i]);
        m = str[i]
        alphabet[m - 97] += 1;
    }

    for(i=0; i<26; i++){
        t = alphabet[i];
        flag *= (t+1);
    }

    flag--;

    printf("%d\n", flag);
    return 0;

}

Compiler output:
main.c: In function 'main':
main.c:5:13: error: 'i' undeclared (first use in this function)
    5 |         for(i=0; i<26; i++){
      |             ^
main.c:5:13: note: each undeclared identifier is reported only once for each function it appears in
main.c:21:19: error: expected ';' before 'alphabet'
   21 |         m = str[i]
      |                   ^
      |                   ;
   22 |         alphabet[m - 97] += 1;
      |         ~~~~~~~~
Language: C++

#include <bits/stdc++.h>

using namespace std;


int main() {
  unsigned long long co=0;
  int N;
  string S;
  //入力受付
  cin >> N;
  cin >> S;
  string str="";
  vector<int> n;
  int index =0;
  
  for(int i=0;i<N;i++){
    index=str.find(S[i]);
    if(index== string::npos){
      str +=S[i];
      n.push_back(2);
    }else{
      n[index]++;
    }
  }

  co = 1;
  for(int i=0; i<n.size();i++){
    co = (co * n[i])　% 1000000007;
  }
  co--;  
  cout << co % 1000000007;

}


Compiler output:
a.cc:29:21: error: extended character 　 is not valid in an identifier
   29 |     co = (co * n[i])　% 1000000007;
      |                     ^
a.cc: In function 'int main()':
a.cc:29:21: error: expected ';' before '\U00003000'
   29 |     co = (co * n[i])　% 1000000007;
      |                     ^~
      |                     ;
Language: C++

#include<bits/stdc++.h>
using namespace std;
const int inf=0x3f3f3f3f;
const ll mod=1e9+7;
const int N=1e5+5;
const double eps=1e-4;
typedef long long ll;
typedef pair<int,int> pii;
int a[N];
char s[N];
int vis[N];
int main()
{
    int n;
    scanf("%d",&n);
    scanf("%s",s);
    int len=strlen(s);
    for(int i=0;i<len;i++)
    {
        vis[s[i]-'a']++;
    }
    ll ans=1;
    for(int i=0;i<=26;i++)
    {
        ans=1ll*ans*(vis[i]+1)%mod;
    }
    ans%=mod;
    printf("%lld\n",ans-1);
    return 0;
}



Compiler output:
a.cc:4:7: error: 'll' does not name a type
    4 | const ll mod=1e9+7;
      |       ^~
a.cc: In function 'int main()':
a.cc:25:32: error: 'mod' was not declared in this scope; did you mean 'modf'?
   25 |         ans=1ll*ans*(vis[i]+1)%mod;
      |                                ^~~
      |                                modf
a.cc:27:10: error: 'mod' was not declared in this scope; did you mean 'modf'?
   27 |     ans%=mod;
      |          ^~~
      |          modf
Language: C++

import collections
n=int(input())
S=input()
alphabet=[chr(ord('a') + i) for i in range(26)]
kaisu=collections.Counter(S)
ans=1
for i in alphabet:
	if kaisu[i]!=0:
		ans*=kaisu[i]+1
ans-=1
print(ans)

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import collections
      | ^~~~~~
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

int main() {
    int N;
    cin >> N;
    int C[N], 
    long long Sum[20000]={}, DP[N];
    for(int i=0; i<N; i++){
        cin >> C[i];
    }

    DP[0] = 1;
    Sum[C[0]] = 1;
    for(int i=1; i<N; i++){
        if(C[i] == C[i-1]){
            DP[i] = DP[i-1];
        }else{
            DP[i] = Sum[C[i]] + DP[i - 1];
            DP[i] %= mod;
            Sum[C[i]] = DP[i];
        }
    }

    cout << DP[N-1];
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:5: error: expected unqualified-id before 'long'
    9 |     long long Sum[20000]={}, DP[N];
      |     ^~~~
a.cc:9:28: error: expected primary-expression before ',' token
    9 |     long long Sum[20000]={}, DP[N];
      |                            ^
a.cc:9:30: error: 'DP' was not declared in this scope
    9 |     long long Sum[20000]={}, DP[N];
      |                              ^~
a.cc:15:5: error: 'Sum' was not declared in this scope
   15 |     Sum[C[0]] = 1;
      |     ^~~
Language: C++

#include <iostream>
#include <algorithm>
#include <string>
#include <numeric>
#include <vector>
#include <cmath>
using namespace std;
int main(){
  int c,n,i;
  long long b=1;
  string s;
  vector <int> l;
  cin>>n>>s;
  for(char j ='a';j<='z';j++){
    c=count(s.begin(),s.end(),j);
    l.push_back(c);} 
  for(i=0;i<l.size();i++) b*=(l[i]+1);
  cout<<(b-1)%1000000007;
}
#include <iostream>
#include <algorithm>
#include <string>
#include <numeric>
#include <vector>
#include <cmath>
using namespace std;
int main(){
  int c,n,i;
  long long b=1;
  string s;
  vector <int> l;
  cin>>n>>s;
  for(char j ='a';j<='z';j++){
    c=count(s.begin(),s.end(),j);
    l.push_back(c);} 
  for(i=0;i<l.size();i++) b*=(l[i]+1);
  cout<<(b-1)%1000000007;
}
提出情報
提出日時

Compiler output:
a.cc:27:5: error: redefinition of 'int main()'
   27 | int main(){
      |     ^~~~
a.cc:8:5: note: 'int main()' previously defined here
    8 | int main(){
      |     ^~~~
a.cc:39:1: error: '\U000063d0\U000051fa\U000060c5\U00005831' does not name a type
   39 | 提出情報
      | ^~~~~~~~
Language: C++

#include<iostream>
#include<string>
#include<vector>
#include<math>

#define REP(i,j,k) for( int i = j; i < k; i++ )
#define rep(i,j) REP(i,0,j)

using namespace std;

int main(){
	
	int N;
	string S;
	
	cin >> N >> S;
	
	vector<int> c(26,0);
	
	rep(i,N)
		c[S[i]-'a']++;
	
	int ans = 1;
	
	rep(i,26)
		ans *= c[i]+1;
	
	ans = ( ans-1 ) % ( (int)pow(10,9)+7 );
	
	cout << ans << endl;
	
	return 0;
	
}


Compiler output:
a.cc:4:9: fatal error: math: No such file or directory
    4 | #include<math>
      |         ^~~~~~
compilation terminated.
Language: C++

#include<iostream>
#include<string>
#include<vector>

#define REP(i,j,k) for( int i = j; i < k; i++ )
#define rep(i,j) REP(i,0,j)

using namespace std;

int main(){
	
	int N;
	string S;
	
	cin >> N >> S;
	
	vector<int> c(26,0);
	
	rep(i,N)
		c[S[i]-'a']++;
	
	int ans = 1;
	
	rep(i,26)
		ans *= c[i]+1;
	
	ans = ( ans-1 ) % ( (int)pow(10,9)+7 );
	
	cout << ans << endl;
	
	return 0;
	
}


Compiler output:
a.cc: In function 'int main()':
a.cc:27:34: error: 'pow' was not declared in this scope
   27 |         ans = ( ans-1 ) % ( (int)pow(10,9)+7 );
      |                                  ^~~
Language: C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define NUM 1000000007 //10^9+7
#define ll long long int

int main(void){
	ll n,i,ans=1;
	char s[100001];
	scanf("%lld %s",&n,s);
	int alph[26]={0};
	for(i=0;i<n;i++)alph[s[i]-'a']++;
	for(i=0;i<26;i++){
		ans *= (alph[i]+1);
		ans = ans%NUM;
	}
	ans = (ans-1)%NUM
	printf("%lld",ans);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:18:9: error: expected ';' before 'printf'
   18 |         printf("%lld",ans);
      |         ^~~~~~
Language: C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define NUM 1000000007 //10^9+7
#define ll long long int

int main(void){
	ll n,i,ans=1;
	char s[100001];
	scanf("%lld %s",&n,s);
	int alph[26]={0};
	for(i=0;i<n;i++)alph[s[i]-'a']++;
	for(i=0;i<26;i++){
		ans *= (alph[i]+1);
		ans = ans%NUM;
	}
	ans = (ans-1)%NUM
	printf("%lld",);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:18:9: error: expected ';' before 'printf'
   18 |         printf("%lld",);
      |         ^~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int cnt[26];
int main()
{
int n;
  cin>>n;
  string s;
  cin>>s;
  for(auto i:s)cnt[i-'a']++;
  long long ans=1;
  for(int i=0;i<26;i++)
  {
    ans*=(cnt[i]+1);
    ans%=(int)(1e9+7);
  }
  ans=(ans+1e9+6)%((int)(1e9+7));
cout<<ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:18: error: invalid operands of types 'double' and 'int' to binary 'operator%'
   17 |   ans=(ans+1e9+6)%((int)(1e9+7));
      |       ~~~~~~~~~~~^~~~~~~~~~~~~~~
      |               |    |
      |               |    int
      |               double
Language: C++

#include<bits/stdc++.h>
using namespace std;
int cnt[26];
int main()
{
int n;
  cin>>n;
  string s;
  cin>>s;
  for(auto i:s)cnt[i-'a']++;
  long long ans=1;
  for(int i=0;i<26;i++)
  {
    ans*=(cnt[i]+1);
    ans%=(1e9+7);
  }
cout<<ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:8: error: invalid operands of types 'long long int' and 'double' to binary 'operator%'
   15 |     ans%=(1e9+7);
      |     ~~~^~~~~~~~~
a.cc:15:8: note:   in evaluation of 'operator%=(long long int, double)'
Language: Java

import java.util.Scanner;
private class A031{

    public static void main(String[] args){
        int MOD_NUM = (int)Math.pow(10,9)+7;
        Scanner sc = new Scanner(System.in);

        int[] abc = new int[26];
        for(int i = 0; i < 26; i++)abc[i] = 0;
        int N = sc.nextInt();
        String str = sc.next();

        for(int i = 0; i < N; i++){
            abc[(char)str.charAt(i) - 'a']++;
        }

        int ans = 1;
        for(int i = 0; i < 26; i++){
            ans = (ans  * (abc[i]+1)) % MOD_NUM;
        }

        System.out.println(ans - 1);

    }
}

Compiler output:
Main.java:2: error: modifier private not allowed here
private class A031{
        ^
1 error
Language: Java

import java.util.Scanner;
public class A031{

    public static void main(String[] args){
        int MOD_NUM = (int)Math.pow(10,9)+7;
        Scanner sc = new Scanner(System.in);

        int[] abc = new int[26];
        for(int i = 0; i < 26; i++)abc[i] = 0;
        int N = sc.nextInt();
        String str = sc.next();

        for(int i = 0; i < N; i++){
            abc[(char)str.charAt(i) - 'a']++;
        }

        int ans = 1;
        for(int i = 0; i < 26; i++){
            ans = (ans  * (abc[i]+1)) % MOD_NUM;
        }

        System.out.println(ans - 1);

    }
}

Compiler output:
Main.java:2: error: class A031 is public, should be declared in a file named A031.java
public class A031{
       ^
1 error
Language: C++

N = int(input())
S = input()

M = 10**9 + 7
cnt = [0] * 26

for i in range(N):
    cnt[ord(S[i]) - ord('a')] += 1

ans = 1
for i in range(26):
    ans *= (cnt[i] + 1)
    ans %= M

print(ans - 1)

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

#include<bits/stdc++.h>
#define ll long long 
ll freq[26];
ll mod = 1e9+7;
using namespace std;
int main()
{
	ll n;
	cin >> n;
	string s;
	cin >> s;
	for(int i = 0; i < s.size(); i++)
	{
	    freq[s[i]-'a']++;	
	}
	ll ans = 1;
    for(char c = 'a', c <= 'z'; c++)
    {
    	ans = (ans * (freq[c-'a']+1))%mod;
	}
	cout << (ans-1+mod)%mod << '\n';
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:24: error: expected ';' before '<=' token
   17 |     for(char c = 'a', c <= 'z'; c++)
      |                        ^~~
      |                        ;
a.cc:17:25: error: expected primary-expression before '<=' token
   17 |     for(char c = 'a', c <= 'z'; c++)
      |                         ^~
Language: C++

#include <bits/stdc++.h>
#define rep(i,a,b) for(int i=a;i<b;i++)
#define rrep(i,a,b) for(int i=a;i>=b;i--)
#define fore(i,a) for(auto &i:a)
#define all(x) (x).begin(),(x).end()
#pragma GCC optimize ("-O3")
using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); }
typedef long long ll; const int inf = INT_MAX / 2; const ll infl = 1LL << 60;
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; }

constexpr int MOD = 1'000'000'007;

void _main() {
  int N;
  string S;
  cin >> N >> S;

  vector<int> cnt(26, 1);
  fore(c, S) cnt[c-'a']++;

  int ans = 1;
  fore(x : cnt) {
    ans = 1ll * ans * x % MOD;
  }
  ans--;
  cout << ans << "\n";
}

Compiler output:
a.cc:23:15: error: macro "fore" requires 2 arguments, but only 1 given
   23 |   fore(x : cnt) {
      |               ^
a.cc:4:9: note: macro "fore" defined here
    4 | #define fore(i,a) for(auto &i:a)
      |         ^~~~
a.cc: In function 'void _main()':
a.cc:23:3: error: 'fore' was not declared in this scope
   23 |   fore(x : cnt) {
      |   ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define MOD (1e9+7)
int main(){
  int N,res=1;
  string S;
  map<char,int> m;
  cin>>N>>S;
  for(int i=0;i<N;++i)m[S[i]]++;
  for(auto i=m.begin();i!=m.end();++i)
    res = ((res%MOD)*((i->second+1)%MOD))%MOD;
  cout<<(res-1)%MOD;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:16: error: invalid operands of types 'int' and 'double' to binary 'operator%'
   11 |     res = ((res%MOD)*((i->second+1)%MOD))%MOD;
      |             ~~~^
      |             |
      |             int
a.cc:11:36: error: invalid operands of types 'int' and 'double' to binary 'operator%'
   11 |     res = ((res%MOD)*((i->second+1)%MOD))%MOD;
      |                       ~~~~~~~~~~~~~^
      |                                 |
      |                                 int
a.cc:12:16: error: invalid operands of types 'int' and 'double' to binary 'operator%'
   12 |   cout<<(res-1)%MOD;
      |         ~~~~~~~^
      |             |
      |             int
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main()
{
    using ll = long long;
  ll n;
    cin >> n;
    vector<ll> c(26);
    for(ll i = 0; i < n; i++)
    {
        char a;
        cin >> a;
        c[a - 'a']++;
    }

    ll ans = 1L;
    for(ll i = 0; i < 26; i++)
    {
        ans *= (c[i]+1) % mod;
    }
    int mod = 1e9 + 7;
    ans = ans + mod - 1;
    cout << ans % mod << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:27: error: 'mod' was not declared in this scope; did you mean 'modf'?
   19 |         ans *= (c[i]+1) % mod;
      |                           ^~~
      |                           modf
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main()
{
    ll n;
    cin >> n;
    using ll = long long;
    vector<ll> c(26);
    for(ll i = 0; i < n; i++)
    {
        char a;
        cin >> a;
        c[a - 'a']++;
    }

    ll ans = 1L;
    for(ll i = 0; i < 26; i++)
    {
        ans *= c[i]+1L;
    }
    cout << (ans-1L) % 1000000007L << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:5: error: 'll' was not declared in this scope
    5 |     ll n;
      |     ^~
a.cc:6:12: error: 'n' was not declared in this scope; did you mean 'yn'?
    6 |     cin >> n;
      |            ^
      |            yn
a.cc:8:14: error: template argument 2 is invalid
    8 |     vector<ll> c(26);
      |              ^
a.cc:9:11: error: expected ';' before 'i'
    9 |     for(ll i = 0; i < n; i++)
      |           ^~
      |           ;
a.cc:9:19: error: 'i' was not declared in this scope
    9 |     for(ll i = 0; i < n; i++)
      |                   ^
a.cc:13:10: error: invalid types 'int[int]' for array subscript
   13 |         c[a - 'a']++;
      |          ^
a.cc:16:7: error: expected ';' before 'ans'
   16 |     ll ans = 1L;
      |       ^~~~
      |       ;
a.cc:17:11: error: expected ';' before 'i'
   17 |     for(ll i = 0; i < 26; i++)
      |           ^~
      |           ;
a.cc:17:19: error: 'i' was not declared in this scope
   17 |     for(ll i = 0; i < 26; i++)
      |                   ^
a.cc:19:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   19 |         ans *= c[i]+1L;
      |         ^~~
      |         abs
a.cc:21:14: error: 'ans' was not declared in this scope; did you mean 'abs'?
   21 |     cout << (ans-1L) % 1000000007L << endl;
      |              ^~~
      |              abs
Language: C++

using System;
using System.Collections.Generic;
using System.Linq;

public class Hello
{
    public static void Main()
    {
        var dic = new Dictionary<char, uint>();

        Console.ReadLine();
        foreach (var c in Console.ReadLine())
        {
            uint count;
            dic.TryGetValue(c, out count);
            dic[c] = count + 1;
        }

        Console.WriteLine(
                (dic.Values.Aggregate(1ul, (s, v) => s * (v + 1)) -1)
                    % (Math.Pow(10, 9) + 7)
            );
    }
}


Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:2:7: error: expected nested-name-specifier before 'System'
    2 | using System.Collections.Generic;
      |       ^~~~~~
a.cc:3:7: error: expected nested-name-specifier before 'System'
    3 | using System.Linq;
      |       ^~~~~~
a.cc:5:1: error: expected unqualified-id before 'public'
    5 | public class Hello
      | ^~~~~~
Language: C++

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

int main() {
	long long N;
	string S;
	cin >> N;
	cin >> S;
	long long i;
	vector<long long> A(30);
	for (i = 0; i < 26; i++) {
		A.at(i) = 0;
	}
	for (i = 0; i < N; i++) {
		switch (S.at(i)) {
		case 'a':
			A[0] += 1;
			break;
		case 'b':
			A[1] += 1;
			break;
		case 'c':
			A[2] += 1;
			break;
		case 'd':
			A[3] += 1;
			break;
		case 'e':
			A[4] += 1;
			break;
		case 'f':
			A[5] += 1;
			break;
		case 'g':
			A[6] += 1;
			break;
		case 'h':
			A[7] += 1;
			break;
		case 'i':
			A[8] += 1;
			break;
		case 'j':
			A[9] += 1;
			break;
		case 'k':
			A[10] += 1;
			break;
		case 'l':
			A[11] += 1;
			break;
		case 'm':
			A[12] += 1;
			break;
		case 'n':
			A[13] += 1;
			break;
		case 'o':
			A[14] += 1;
			break;
		case 'p':
			A[15] += 1;
			break;
		case 'q':
			A[16] += 1;
			break;
		case 'r':
			A[17] += 1;
			break;
		case 's':
			A[18] += 1;
			break;
		case 't':
			A[19] += 1;
			break;
		case 'u':
			A[20] += 1;
			break;
		case 'v':
			A[21] += 1;
			break;
		case 'w':
			A[22] += 1;
			break;
		case 'x':
			A[23] += 1;
			break;
		case 'y':
			A[24] += 1;
			break;
		case 'z':
			A[25] += 1;
			break;
		}
	}
	long long B = 1;
	for (i = 0; i < 26; i++) {
		B = B*(A.at(i) + 1) % 1000000007;
	}
	cout << B - 1;

Compiler output:
a.cc: In function 'int main()':
a.cc:103:23: error: expected '}' at end of input
  103 |         cout << B - 1;
      |                       ^
a.cc:7:12: note: to match this '{'
    7 | int main() {
      |            ^
Language: C++

#include "bits/stdc++.h"

using namespace std;

int N = (int)1e5 + 10;
const int md = (int)1e9 + 7;
char S[N] ;
int cnt[26];

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


Compiler output:
a.cc:7:8: error: size of array 'S' is not an integral constant-expression
    7 | char S[N] ;
      |        ^
a.cc: In function 'int main()':
a.cc:12:9: error: 'scnaf' was not declared in this scope; did you mean 'scanf'?
   12 |         scnaf("%d %s", &n , S);
      |         ^~~~~
      |         scanf
Language: C++

N=int(input())
S=input()
d={}
for c in S:
	d[c] = d[c]+1 if d.__contains__(c) else 1
mod=int(1e9+7)
ans=1
for a,b in d.items():
	ans= ans*(b+1)%mod

print(ans-1)


Compiler output:
a.cc:1:1: error: 'N' does not name a type
    1 | N=int(input())
      | ^
a.cc:4:1: error: expected unqualified-id before 'for'
    4 | for c in S:
      | ^~~
Language: C++


#include <bits/stdc++.h>

using namespace std;

using ll = long long;

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

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

    map<char, int> c;

    for (char e : s) {
        c[e]++;
    }
    
    ll res = 1;
    for (auto e: c) {
        res *= e.second + 1;
        res %= 1e9 + 7;
    }

    cout << res - 1 << '\n';

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:25:13: error: invalid operands of types 'll' {aka 'long long int'} and 'double' to binary 'operator%'
   25 |         res %= 1e9 + 7;
      |         ~~~~^~~~~~~~~~
a.cc:25:13: note:   in evaluation of 'operator%=(using ll = long long int {aka long long int}, double)'
Language: C++

v#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < n; i++)
#define ll long long
#define endl '\n'
using namespace std;
const int MOD = 1000000009;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    int n;
    string s;
    cin >> n;
    cin >> s;
    ll cnt[30] = {};
    for (int i = 0; i < n; i++) {
        cnt[s[i] - 'a']++;
    }
    ll ans = 1;
    for (int i = 0; i < 30; i++) {
        ans *= (cnt[i] + 1);
        ans %= MOD;
    }
    cout << (ans - 1 + MOD) % MOD << endl;

    return 0;
}

Compiler output:
a.cc:1:2: error: stray '#' in program
    1 | v#include <bits/stdc++.h>
      |  ^
a.cc:1:1: error: 'v' does not name a type
    1 | v#include <bits/stdc++.h>
      | ^
a.cc: In function 'int main()':
a.cc:9:5: error: 'cin' was not declared in this scope
    9 |     cin.tie(0);
      |     ^~~
a.cc:10:5: error: 'ios' has not been declared
   10 |     ios::sync_with_stdio(false);
      |     ^~~
a.cc:12:5: error: 'string' was not declared in this scope
   12 |     string s;
      |     ^~~~~~
a.cc:14:12: error: 's' was not declared in this scope
   14 |     cin >> s;
      |            ^
a.cc:24:5: error: 'cout' was not declared in this scope
   24 |     cout << (ans - 1 + MOD) % MOD << endl;
      |     ^~~~
Language: C++

#include <string>
#include <map>
#include <iostream>
 
int recursive_comb(int *indexes, int s, int rest, int k, std::string st) {
  std::set<char> local_history = {};
  int count = 0;
 
  if (rest == 0) {
    for (int i=0; i<k; ++i) {
      auto r = local_history.insert(st[indexes[i]]);
      if (!r.second){
        return 0;
      }
    }
    return 1;
  } else {
    if (s < 0){ 
      return count;
    }
    count += recursive_comb(indexes, s - 1, rest, k, st);
    indexes[rest - 1] = s;
    count += recursive_comb(indexes, s - 1, rest - 1, k, st);
    return count;
  }
}
 
// nCkの組み合わせに対して処理を実行する
int foreach_comb(int n, int k, std::string s) {
  int indexes[k];
  int t = recursive_comb(indexes, n - 1, k, k, s);
  return t;
  //return recursive_comb(indexes, n - 1, k, k, s);
}
 
 
int main()
{
  int N;
  const long mods = 10e9 + 7;
  std::string S;
  std::cin >> N;
  std::cin >> S;
 
  int count=0;
 
  for(int i=0; i<=N; ++i){
    count += foreach_comb(N, i, S);
  }
  count -=1;
 
  std::cout << count % mods;
 
  return 0;
}

Compiler output:
a.cc: In function 'int recursive_comb(int*, int, int, int, std::string)':
a.cc:6:8: error: 'set' is not a member of 'std'
    6 |   std::set<char> local_history = {};
      |        ^~~
a.cc:4:1: note: 'std::set' is defined in header '<set>'; this is probably fixable by adding '#include <set>'
    3 | #include <iostream>
  +++ |+#include <set>
    4 | 
a.cc:6:12: error: expected primary-expression before 'char'
    6 |   std::set<char> local_history = {};
      |            ^~~~
a.cc:11:16: error: 'local_history' was not declared in this scope
   11 |       auto r = local_history.insert(st[indexes[i]]);
      |                ^~~~~~~~~~~~~
Language: C++

#include <map>
#include <iostream>

int recursive_comb(int *indexes, int s, int rest, int k, std::string st) {
  std::set<char> local_history = {};
  int count = 0;

  if (rest == 0) {
    for (int i=0; i<k; ++i) {
      auto r = local_history.insert(st[indexes[i]]);
      if (!r.second){
        return 0;
      }
    }
    return 1;
  } else {
    if (s < 0){ 
      return count;
    }
    count += recursive_comb(indexes, s - 1, rest, k, st);
    indexes[rest - 1] = s;
    count += recursive_comb(indexes, s - 1, rest - 1, k, st);
    return count;
  }
}

// nCkの組み合わせに対して処理を実行する
int foreach_comb(int n, int k, std::string s) {
  int indexes[k];
  int t = recursive_comb(indexes, n - 1, k, k, s);
  return t;
  //return recursive_comb(indexes, n - 1, k, k, s);
}


int main()
{
  int N;
  const long mods = 10e9 + 7;
  std::string S;
  std::cin >> N;
  std::cin >> S;

  int count=0;

  for(int i=0; i<=N; ++i){
    count += foreach_comb(N, i, S);
  }
  count -=1;

  std::cout << count % mods;

  return 0;
}

Compiler output:
a.cc: In function 'int recursive_comb(int*, int, int, int, std::string)':
a.cc:5:8: error: 'set' is not a member of 'std'
    5 |   std::set<char> local_history = {};
      |        ^~~
a.cc:3:1: note: 'std::set' is defined in header '<set>'; this is probably fixable by adding '#include <set>'
    2 | #include <iostream>
  +++ |+#include <set>
    3 | 
a.cc:5:12: error: expected primary-expression before 'char'
    5 |   std::set<char> local_history = {};
      |            ^~~~
a.cc:10:16: error: 'local_history' was not declared in this scope
   10 |       auto r = local_history.insert(st[indexes[i]]);
      |                ^~~~~~~~~~~~~
Language: C++

#include <iostream>

int recursive_comb(int *indexes, int s, int rest, int k, std::string st) {
  std::set<char> local_history = {};
  int count = 0;

  if (rest == 0) {
    for (int i=0; i<k; ++i) {
      auto r = local_history.insert(st[indexes[i]]);
      if (!r.second){
        return 0;
      }
    }
    return 1;
  } else {
    if (s < 0){ 
      return count;
    }
    count += recursive_comb(indexes, s - 1, rest, k, st);
    indexes[rest - 1] = s;
    count += recursive_comb(indexes, s - 1, rest - 1, k, st);
    return count;
  }
}

// nCkの組み合わせに対して処理を実行する
int foreach_comb(int n, int k, std::string s) {
  int indexes[k];
  int t = recursive_comb(indexes, n - 1, k, k, s);
  return t;
  //return recursive_comb(indexes, n - 1, k, k, s);
}


int main()
{
  int N;
  const long mods = 10e9 + 7;
  std::string S;
  std::cin >> N;
  std::cin >> S;

  int count=0;

  for(int i=0; i<=N; ++i){
    count += foreach_comb(N, i, S);
  }
  count -=1;

  std::cout << count % mods;

  return 0;
}

Compiler output:
a.cc: In function 'int recursive_comb(int*, int, int, int, std::string)':
a.cc:4:8: error: 'set' is not a member of 'std'
    4 |   std::set<char> local_history = {};
      |        ^~~
a.cc:2:1: note: 'std::set' is defined in header '<set>'; this is probably fixable by adding '#include <set>'
    1 | #include <iostream>
  +++ |+#include <set>
    2 | 
a.cc:4:12: error: expected primary-expression before 'char'
    4 |   std::set<char> local_history = {};
      |            ^~~~
a.cc:9:16: error: 'local_history' was not declared in this scope
    9 |       auto r = local_history.insert(st[indexes[i]]);
      |                ^~~~~~~~~~~~~
Language: C++

//Zory-2019
#include<cmath>
#include<ctime>
#include<cstdio>
#include<cstring>
#include<cstdlib>
#include<map>
#include<set>
#include<queue>
#include<deque>
#include<stack>
#include<bitset>
#include<vector>
#include<algorithm>
#include<iostream>
#include<deque>
using namespace std;
namespace mine
{
	typedef long long ll;
	#define double long double
	const int INF=0x3f3f3f3f;
	ll qread()
	{
		ll ans=0;char c=getchar();int f=1;
		while(c<'0' or c>'9') {if(c=='-') f=-1;c=getchar();}
		while('0'<=c and c<='9') ans=ans*10+c-'0',c=getchar();
		return ans*f;
	}
	void write(ll num)
	{
		if(num<0) {num=-num;putchar('-');}
		if(num>9) write(num/10);
		putchar('0'+num%10);
	}
	void writeln(int num){write(num);puts("");}
	#define FR first
	#define SE second
	#define MP make_pair
	#define pr pair<ll,ll>
	#define PB push_back
	inline void chmax(ll &x,ll y) {x=x>y?x:y;}
	inline void chmin(ll &x,ll y) {x=x<y?x:y;}

	const int MOD=1e9+7;
	const int MAX_N=1e5+10;
	char s[MAX_N];
	int f[30];
	void main()
	{
		bin[0]=1;for(int i=1;i<30;i++) bin[i]=bin[i-1]<<1;

		int n;scanf("%d",&n);
		scanf("%s",s+1);for(int i=1;i<=n;i++) f[s[i]-'a']++;
		ll ans=1;for(int i=0;i<26;i++) ans=ans*(f[i]+1)%MOD;
		printf("%lld",(ans+MOD-1)%MOD);
 	}
};
int main()
{
	srand(time(0));
	mine::main();
}


Compiler output:
a.cc: In function 'void mine::main()':
a.cc:51:17: error: 'bin' was not declared in this scope; did you mean 'sin'?
   51 |                 bin[0]=1;for(int i=1;i<30;i++) bin[i]=bin[i-1]<<1;
      |                 ^~~
      |                 sin
Language: Java

import java.util.Scanner;

public class ProblemA {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		String S = sc.next();
		sc.close();
		long mod = (long)Math.pow(10, 9) + 7;
		long[] cnt = new long[26];
		for(int i = 0; i < N; i++) {
			cnt[S.charAt(i) - 'a']++;
		}
		long ans = 1;
		for(long i : cnt) {
			ans = (i + 1) * ans % mod;
		}
		ans -= 1;
		ans %= mod;
		System.out.println(ans);
	}
}

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

#include <stdio.h>

int alpha[26];

int main(void){
    long n;
    scanf("%ld\n", &n);
    for(long i=0; i<n; i++){
        int c = getchar();
        alpha[c-'a']++;
    }
    long ans = 1;
    for(long i=0; i<26; i++){
        ans = ans * (alpha[i]+1) % 1'000'000'007;
    }
    printf("%ld\n", ans-1);
    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:14:37: warning: multi-character character constant [-Wmultichar]
   14 |         ans = ans * (alpha[i]+1) % 1'000'000'007;
      |                                     ^~~~~
main.c:14:37: error: expected ';' before '\x303030'
   14 |         ans = ans * (alpha[i]+1) % 1'000'000'007;
      |                                     ^~~~~
      |                                     ;
main.c:14:45: warning: missing terminating ' character
   14 |         ans = ans * (alpha[i]+1) % 1'000'000'007;
      |                                             ^
main.c:14:45: error: missing terminating ' character
   14 |         ans = ans * (alpha[i]+1) % 1'000'000'007;
      |                                             ^~~~~
Language: C

#include <stdio.h>

int alpha[26];

int main(void){
    long n;
    scanf("%ld\n", &n);
    for(long i=0; i<n; i++){
        int c = getchar();
        alpha[c-'a']++;
    }
    long ans = 1;
    for(auto i : alpha){
        ans = ans * (i+1) % 1'000'000'007;
    }
    printf("%ld\n", ans-1);
    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:13:16: error: expected '=', ',', ';', 'asm' or '__attribute__' before ':' token
   13 |     for(auto i : alpha){
      |                ^
main.c:14:22: error: 'i' undeclared (first use in this function)
   14 |         ans = ans * (i+1) % 1'000'000'007;
      |                      ^
main.c:14:22: note: each undeclared identifier is reported only once for each function it appears in
main.c:14:30: warning: multi-character character constant [-Wmultichar]
   14 |         ans = ans * (i+1) % 1'000'000'007;
      |                              ^~~~~
main.c:14:30: error: expected ';' before '\x303030'
   14 |         ans = ans * (i+1) % 1'000'000'007;
      |                              ^~~~~
      |                              ;
main.c:14:38: warning: missing terminating ' character
   14 |         ans = ans * (i+1) % 1'000'000'007;
      |                                      ^
main.c:14:38: error: missing terminating ' character
   14 |         ans = ans * (i+1) % 1'000'000'007;
      |                                      ^~~~~
Language: C++

#include <bits/stdc++.h>

using namespace std;


int main() {
  int co=0;
  int N;
  string S;
  //入力受付
  cin >> N;
  cin >> S;
  string str="";
  vector<int> n;
  int index =0;
  //vector<char> c;
  
  for(int i=0;i<N;i++){
    index=str.find(S[i]);
    if(index== string::npos){
      str +=S[i];
      n.push_back(1);
    }else
      n[index]++;
    }
  }

  co = 1;
  for(int i=0: i<n.size():i++){
    if(n[i]>1)n[i]++;
    co = co * n[i];
  }

  cout << (co-1) % 1000000007;

}

Compiler output:
a.cc:28:3: error: 'co' does not name a type
   28 |   co = 1;
      |   ^~
a.cc:29:3: error: expected unqualified-id before 'for'
   29 |   for(int i=0: i<n.size():i++){
      |   ^~~
a.cc:34:3: error: 'cout' does not name a type
   34 |   cout << (co-1) % 1000000007;
      |   ^~~~
a.cc:36:1: error: expected declaration before '}' token
   36 | }
      | ^
Language: C++

#include <bits/stdc++.h>

using namespace std;


int main() {
  int co=0;
  int N;
  string S;
  //入力受付
  cin >> N;
  cin >> S;
  string str="";
  vector<int> n;
  int index =0;
  //vector<char> c;
  
  for(int i=0;i<N;i++){
    index=str.find(S[i]);
    if(index== string::npos){
      str +=S[i];
      n.push_back(1);
    }else
      n[index]++;
    }
  }

  co =1;
  for(int i=0;i<n.size();i++){
    if(n[i]>1)n[i]++;
    co = co * n[i];
  }

  cout << (co-1) % 1000000007;

}

Compiler output:
a.cc:28:3: error: 'co' does not name a type
   28 |   co =1;
      |   ^~
a.cc:29:3: error: expected unqualified-id before 'for'
   29 |   for(int i=0;i<n.size();i++){
      |   ^~~
a.cc:29:15: error: 'i' does not name a type
   29 |   for(int i=0;i<n.size();i++){
      |               ^
a.cc:29:26: error: 'i' does not name a type
   29 |   for(int i=0;i<n.size();i++){
      |                          ^
a.cc:34:3: error: 'cout' does not name a type
   34 |   cout << (co-1) % 1000000007;
      |   ^~~~
a.cc:36:1: error: expected declaration before '}' token
   36 | }
      | ^
Language: C++

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

int main()
{
  cin >> N;
  cout << pow(2,N) - 1;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:10: error: 'N' was not declared in this scope
    7 |   cin >> N;
      |          ^
Language: C++

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

vector<int> binstring(int m,int l){
  vector<int> M(l);
  while(m!=0){
    if(m%2==1){
      M[l-1]=1;
      m-=1;
    }
    else{
      M[l-1]=0;
    }
    l--;
    m/=2;
  }
  return M;
}

int main(){
  int N;
  string S;
  cin>>N>>S;
 
  int max;
  max=pow(2,N)-1;
  
  int count=0;
  string s="";
  string s1="";
  //全ての部分列を作って重複を調べる
  //文字列Sの部分列sを作る
  //0と1の組み合わせでできる列
  //1~maxを二進数展開して作る
  vector<int> n(N);
  bool flag=false;

  for(int i=1;i<=max;i++){
    n=binstring(i,N);
    
    //nをもとに部分列sを作成
    for(int j=0;j<N;j++){
      if(n[j]==1){
        s+=S[j];//Sの部分列sを作成
      }
    }
    //sに含まれる謎文字を消してきれいなs1に
    for(int m=0;m<s.size();m++){
      if(isalpha(s[m])){
        s1+=s[m];
      }
    }
    
    //文字列s1に対して重複してる文字があるか調べる
    for(int k=0;k<s1.size();k++){
      for(int l=k+1;l<s1.size();l++){
        if(s1[k]==s1[l]){
          //重複していたらcount
          count++;
          flag=true;
        }
        if(flag)break;
      }
      if(flag)break;
    }
    flag=false;
    
    s.clear();
    s1.clear();
  }
  
  cout<<((max-count)%(pow(10,9)+7));
  
}

  

Compiler output:
a.cc: In function 'int main()':
a.cc:72:21: error: invalid operands of types 'int' and '__gnu_cxx::__promote<double>::__type' {aka 'double'} to binary 'operator%'
   72 |   cout<<((max-count)%(pow(10,9)+7));
      |          ~~~~~~~~~~~^~~~~~~~~~~~~~
      |              |                 |
      |              int               __gnu_cxx::__promote<double>::__type {aka double}
Language: C

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

int main()
{
  int N;
  cin >> N;

  int C[N];

  for (int i = 0; i < N; i++) {
    cin >> C[i];
  }

  int prevPos[300000];
  for (int i = 0; i < 300000; i++) {
    prevPos[i] = -1;
  }

  long results[N];
  for (int i = 0; i < N; i++) {
    results[i] = 0;
  }

  results[0] = 1;
  prevPos[C[0]] = 0;

  for (int i = 1; i < N; i++) {
    if (C[i] == C[i-1]) {
      results[i] = results[i-1];
    } else {
      int prev = prevPos[C[i]];

      if (prev != -1) {
        results[i] = results[i-1] + results[prev];
      } else {
        results[i] = results[i-1];
      }
    }

    prevPos[C[i]] = i;
  }
  long result = (results[N - 1] % 1000000007 + 1000000007) % 1000000007;
  cout << to_string(result) <<endl;

  return 0;
}

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

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

uintmax_t combination(unsigned int n, unsigned int r) {
  if ( r * 2 > n ) r = n - r;
  uintmax_t dividend = 1;
  uintmax_t divisor  = 1;
  for ( unsigned int i = 1; i <= r; ++i ) {
    dividend *= (n-i+1);
    divisor  *= i;
  }
  return dividend / divisor;
}

main(){
int n;
cin >> int n;
char s[n];
cin >> char s;
int asum =0;
for(int i = 0; i < n; i++){
  char a = s[i];
  int j = 1;
  for(int k = i; k < n;k++){
    if a != s[j]{
      j++;
    }
    if j == 26;{
      continue;
    }
  }
  int sum =0;
  for(int k = 1;k <= j; k++){
    sum += combination(j,k);
  }
  asum+=sum;
  cout << asum%(10^9+7);
}
return 0;
}

Compiler output:
a.cc:16:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   16 | main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:18:8: error: expected primary-expression before 'int'
   18 | cin >> int n;
      |        ^~~
a.cc:20:8: error: expected primary-expression before 'char'
   20 | cin >> char s;
      |        ^~~~
a.cc:26:8: error: expected '(' before 'a'
   26 |     if a != s[j]{
      |        ^
      |        (
a.cc:29:8: error: expected '(' before 'j'
   29 |     if j == 26;{
      |        ^
      |        (
Language: C++

#include <bits/stdc++.h>

#define INF INT_MAX
#define ll long long
#define REP(i,n) for(int i=0;i<n;i++)
#define REPP(i,a,n) for(int i=0;i<n;i++)
#define mod 1000000007

using namespace std;

ll n,m;
ll a[26];

const int N_MAX = 1000000000;
ll Per[N_MAX] = {}; // n!
ll Per_inv[N_MAX] = {}; //(n!)^-1

// a^b mod p
ll mod_pow(ll a, ll b){
    if(b==0) return 1;
    // 肩が奇数
    if(b%2==1){
        return a * mod_pow(a, b-1) % mod;
    }
    else{
        return mod_pow(a*a % mod, b/2) % mod;
    }
}

ll nCr(ll n, ll r){
    if(n<r) return 0;
 
    if (n == r || r == 0)
        return 1;
    else
        return Per[n] * Per_inv[n-r] % mod * Per_inv[r] % mod;  
}

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

	ll n;
	string s;
	ll ans;
	cin >> n >> s;

	vector<ll> f(26,0);

	for(int i=0;i < 26;i++)a[i]=0;;

	ll c = 0;
	for(int i=0;i < s.size();i++){
		f[s[i] - 'a']++;
	}

	sort(f.begin(), f.end(), std::greater<ll>());
	for(int i=0;i<f.size();i++){
		if(!f[i]){
			break;
		}
		a[i] = f[i];
		c++;
	}

	// nCr高速化準備
    Per[1] = 1;
    for(int i=2;i < N_MAX;i++){
        Per[i] = i * Per[i-1] % mod;
    }
    Per_inv[1] = 1;
    for(int i=2;i< N_MAX;i++){
        Per_inv[i] = mod_pow(Per[i], 1000000005);
    }
	
	for(int i=1;i <=c ;i++){
		ans += nCr(n,i);
		// cout << "+" << nCr(n,i) <<endl;
		if(i==1)continue;
		for(int j = 0;j < c;j++){
			// cout << a[j] << endl;
			if(i-2 < 0){
				// cout << "-" << nCr(a[j],2) <<endl;
				ans -= nCr(a[j],2);
			}else{
				// cout << "-" << nCr(a[j],2) << " " << nCr(n-2,i-2) <<endl;
				ans -= (nCr(a[j],2)*nCr(n-2,i-2))%mod;
			}
		}
	}

	cout << ans << endl;
   
	return 0;
}


Compiler output:
/tmp/ccnoNKuJ.o: in function `nCr(long long, long long)':
a.cc:(.text+0x184): relocation truncated to fit: R_X86_64_PC32 against symbol `Per_inv' defined in .bss section in /tmp/ccnoNKuJ.o
a.cc:(.text+0x1d1): relocation truncated to fit: R_X86_64_PC32 against symbol `Per_inv' defined in .bss section in /tmp/ccnoNKuJ.o
/tmp/ccnoNKuJ.o: in function `main':
a.cc:(.text+0x498): relocation truncated to fit: R_X86_64_PC32 against symbol `Per_inv' defined in .bss section in /tmp/ccnoNKuJ.o
a.cc:(.text+0x4df): relocation truncated to fit: R_X86_64_PC32 against symbol `Per_inv' defined in .bss section in /tmp/ccnoNKuJ.o
collect2: error: ld returned 1 exit status
Language: Java

import string
import re
n = int(input())
s = input()

total = 2**n-1
k = 0
for i in string.ascii_lowercase:
    c = s.count(i)
    if c > 1:
        l = 2**(n-c)
        total -= l
        k += c - 1

if k > 1:
    total += k

print(total)


Compiler output:
Main.java:1: error: '.' expected
import string
             ^
Main.java:2: error: '.' expected
import re
         ^
Main.java:3: error: ';' expected
n = int(input())
 ^
3 errors
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0; i<(n) ;i++)
#define pb push_back
#define all(v) (v).begin(),(v).end()
#define fi first
#define se second
using ll=long long;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
#define MOD  1000000007
int dx[4]={0,0,-1,1},dy[4]={1,-1,0,0};


int main(int argc, char const *argv[]) {
  string s;
  int n,a[30]={},ans=1;
  std::cin >> n >> s;
  rep(i,n){
    a[s[i]-'a']++;
  }

  rep(i,26){
    int m=a[i]+1;
    ans*=m;
  }
  std::cout << (ans-1)MOD << '\n';


  return 0;
}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:27:23: error: expected ';' before numeric constant
   27 |   std::cout << (ans-1)MOD << '\n';
      |                       ^
      |                       ;
Language: C++

#include <bits/stdc++.h>

using namespace std;

//vector<string> str_vec;
vector<int> c;
int co=0;
int N;
string S;

void add_str(string str,int index){
  for(int i=index+1;i<N;i++){
    //same_check
    if(str.find(S[i])== string::npos){
      str += S[i];
      //str_vec.push_back(str);
      co++;
      c.push_back(0);
      add_str(str,i);
    }else{
    }
  }
}

void add_count(){
  count++;
}

int main() {
  string str_1 ="";
  //入力受付
  cin >> N;
  cin >> S;  
  
  string t;
  for(int i=0;i<N;i++){
    t =""+S[i];
    add_str(t,i);
    //count++;
    c.push_back(0);
  }
    
  cout << c.size() % 1000000007;

}




Compiler output:
a.cc: In function 'void add_count()':
a.cc:26:8: error: no post-increment operator for type
   26 |   count++;
      |        ^~
Language: Java

 static void Main(string[] args)
        {
            string input = "abcda";
            int len = input.Length;
            List<string> result = new List<string>();
            Dictionary<int, List<string>> dic = new Dictionary<int, List<string>>();

            for (int i = len - 1; i >= 0; i--) {
                List<string> list = new List<string>();
                string c = input.Substring(i, 1);
                list.Add(c);
                result.Add(c);
                for (int j = i + 1; j <= len - 1; j++) {
                    if (dic.ContainsKey(j)) {
                        var temp = dic[j];
                        foreach (var data in temp) {
                            if (data.IndexOf(c) >= 0) {
                                continue;
                            }
                            var word = c + data;
                            list.Add(word);
                            result.Add(word);
                        }
                    }
                }
                dic.Add(i, list);
            }


            return;

        }

Compiler output:
Main.java:16: error: not a statement
                        foreach (var data in temp) {
                                             ^
Main.java:1: error: unnamed classes are a preview feature and are disabled by default.
 static void Main(string[] args)
        ^
  (use --enable-preview to enable unnamed classes)
Main.java:16: error: ')' or ',' expected
                        foreach (var data in temp) {
                                    ^
Main.java:16: error: ';' expected
                        foreach (var data in temp) {
                                            ^
Main.java:16: error: ';' expected
                        foreach (var data in temp) {
                                                 ^
5 errors