Cod sursa(job #2791444)

Utilizator carinamariaCarina Maria Viespescu carinamaria Data 30 octombrie 2021 15:17:29
Problema Litere Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.3 kb
Raporteaza aceasta sursa 

#include<fstream>
using namespace std;
ifstream cin("litere.in");
ofstream cout("litere.out");
char x;
int f[130], i, j, n, nr;
int main (){
    cin>>n;
    for(i=1;i<=n;i++){
        cin>>x;
        for (j=x+1;j<='z';j++)
            nr+=f[j];
        f[x]++;
      }
      cout<<nr;
}