Language: C++

#include <bits/stdc++.h>
typedef long long int ll;
typedef long double ld;
using namespace std;
const long long int INF = 1e6;
const long long int inf = 1e9+7;
typedef pair<ll,ll> pairs;
vector<pairs> p;


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

ll keta(ll N){
    int tmp{};
    while( N > 0 ){
        tmp += ( N % 10 );
        N /= 10;
    }
    N = tmp;
    return N;
}

// ------------------------------------

int main(){
    ll n;
    string s;
    cin>>n>>s;

    map<char, ll> t(26);
    for(ll i=0;i<n;++i){
        t[s[i]-'a']++;
    }
    ll ans=1;
    for(auto val : t){
        ans *= val.second + 1;
    }
    ans--;
    ans %= inf;
    cout<<ans<<endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:33:23: error: no matching function for call to 'std::map<char, long long int>::map(int)'
   33 |     map<char, ll> t(26);
      |                       ^
In file included from /usr/include/c++/14/map:63,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:152,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_map.h:302:9: note: candidate: 'template<class _InputIterator> std::map<_Key, _Tp, _Compare, _Alloc>::map(_InputIterator, _InputIterator, const _Compare&, const allocator_type&) [with _Key = char; _Tp = long long int; _Compare = std::less<char>; _Alloc = std::allocator<std::pair<const char, long long int> >]'
  302 |         map(_InputIterator __first, _InputIterator __last,
      |         ^~~
/usr/include/c++/14/bits/stl_map.h:302:9: note:   candidate expects 3 arguments, 1 provided
/usr/include/c++/14/bits/stl_map.h:285:9: note: candidate: 'template<class _InputIterator> std::map<_Key, _Tp, _Compare, _Alloc>::map(_InputIterator, _InputIterator) [with _Key = char; _Tp = long long int; _Compare = std::less<char>; _Alloc = std::allocator<std::pair<const char, long long int> >]'
  285 |         map(_InputIterator __first, _InputIterator __last)
      |         ^~~
/usr/include/c++/14/bits/stl_map.h:285:9: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/14/bits/stl_map.h:268:9: note: candidate: 'template<class _InputIterator> std::map<_Key, _Tp, _Compare, _Alloc>::map(_InputIterator, _InputIterator, const allocator_type&) [with _Key = char; _Tp = long long int; _Compare = std::less<char>; _Alloc = std::allocator<std::pair<const char, long long int> >]'
  268 |         map(_InputIterator __first, _InputIterator __last,
      |         ^~~
/usr/include/c++/14/bits/stl_map.h:268:9: note:   candidate expects 3 arguments, 1 provided
/usr/include/c++/14/bits/stl_map.h:262:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::map(std::initializer_list<std::pair<const _Key, _Val> >, const allocator_type&) [with _Key = char; _Tp = long long int; _Compare = std::less<char>; _Alloc = std::allocator<std::pair<const char, long long int> >; allocator_type = std::allocator<std::pair<const char, long long int> >]'
  262 |       map(initializer_list<value_type> __l, const allocator_type& __a)
      |       ^~~
/usr/include/c++/14/bits/stl_map.h:262:7: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/14/bits/stl_map.h:256:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::map(std::map<_Key, _Tp, _Compare, _Alloc>&&, std::__type_identity_t<_Alloc>&) [with _Key = char; _Tp = long long int; _Compare = std::less<char>; _Alloc = std::allocator<std::pair<const char, long long int> >; std::__type_identity_t<_Alloc> = std::allocator<std::pair<const char, long long int> >]'
  256 |       map(map&& __m, const __type_identity_t<allocator_type>& __a)
      |       ^~~
/usr/include/c++/14/bits/stl_map.h:256:7: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/14/bits/stl_map.h:252:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::map(const std::map<_Key, _Tp, _Compare, _Alloc>&, std::__type_identity_t<_Alloc>&) [with _Key = char; _Tp = long long int; _Compare = std::less<char>; _Alloc = std::allocator<std::pair<const char, long long int> >; std::__type_identity_t<_Alloc> = std::allocator<std::pair<const char, long long int> >]'
  252 |       map(const map& __m, const __type_identity_t<allocator_type>& __a)
      |       ^~~
/usr/include/c++/14/bits/stl_map.h:252:7: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/14/bits/stl_map.h:248:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::map(const allocator_type&) [with _Key = char; _Tp = long long int; _Compare = std::less<char>; _Alloc = std::allocator<std::pair<const char, long long int> >; allocator_type = std::allocator<std::pair<const char, long long int> >]'
  248 |       map(const allocator_type& __a)
      |       ^~~
/usr/include/c++/14/bits/stl_map.h:248:33: note:   no known conversion for argument 1 from 'int' to 'const std::map<char, long long int>::allocator_type&' {aka 'const std::allocator<std::pair<const char, long long int> >&'}
  248 |       map(const allocator_type& __a)
      |           ~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/14/bits/stl_map.h:240:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::map(std::initializer_list<std::pair<const _Key, _Val> >, const _Compare&, const allocator_type&) [with _Key = char; _Tp = long long int; _Compare = std::less<char>; _Alloc = std::allocator<std::pair<const char, long long int> >; allocator_type = std::allocator<std::pair<const char, long long int> >]'
  240 |       map(initializer_list<value_type> __l,
      |       ^~~
/usr/include/c++/14/bits/stl_map.h:240:40: note:   no known conversion for argument 1 from 'int' to 'std::initializer_list<std::pair<const char, long long int> >'
  240 |       map(initializer_list<value_type> __l,
      |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/14/bits/stl_map.h:227:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::map(std::map<_Key, _Tp, _Compare, _Alloc>&&) [with _Key = char; _Tp = long long int; _Compare = std::less<char>; _Alloc = std::allocator<std::pair<const char, long long int> >]'
  227 |       map(map&&) = default;
      |       ^~~
/usr/include/c++/14/bits/stl_map.h:227:11: note:   no known conversion for argument 1 from 'int' to 'std::map<char, long long int>&&'
  227 |       map(map&&) = default;
      |           ^~~~~
/usr/include/c++/14/bits/stl_map.h:219:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::map(const std::map<_Key, _Tp, _Compare, _Alloc>&) [with _Key = char; _Tp = long long int; _Compare = std::less<char>; _Alloc = std::allocator<std::pair<const char, long long int> >]'
  219 |       map(const map&) = default;
      |       ^~~
/usr/include/c++/14/bits/stl_map.h:219:11: note:   no known conversion for argument 1 from 'int' to 'const std::map<char, long long int>&'
  219 |       map(const map&) = default;
      |           ^~~~~~~~~~
/usr/include/c++/14/bits/stl_map.h:206:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::map(const _Compare&, const allocator_type&) [with _Key = char; _Tp = long long int; _Compare = std::less<char>; _Alloc = std::allocator<std::pair<const char, long long int> >; allocator_type = std::allocator<std::pair<const char, long long int> >]'
  206 |       map(const _Compare& __comp,
      |       ^~~
/usr/include/c++/14/bits/stl_map.h:206:27: note:   no known conversion for argument 1 from 'int' to 'const std::less<char>&'
  206 |       map(const _Compare& __comp,
      |           ~~~~~~~~~~~~~~~~^~~~~~
/usr/include/c++/14/bits/stl_map.h:197:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>::map() [with _Key = char; _Tp = long long int; _Compare = std::less<char>; _Alloc = std::allocator<std::pair<const char, long long int> >]'
  197 |       map() = default;
      |       ^~~
/usr/include/c++/14/bits/stl_map.h:197:7: note:   candidate expects 0 arguments, 1 provided