Cod sursa(job #2913825)

Utilizator TheNamelessOneCiociia Marius Andrei TheNamelessOne Data 17 iulie 2022 12:47:05
Problema Litere Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
#include <fstream>

using namespace std;

ifstream cin ("litere.in");
ofstream cout ("litere.out");

int n,fv[30],nr;
char s[10001];

int main ()
{
    cin>>n>>s;
    for (int i=0; i<n; ++i){
        fv[s[i]-'a']++;
        for (int j=s[i]-'a'+1; j<26; ++j)
            nr+=fv[j];
    }
    cout<<nr;

    return 0;
}