Cod sursa(job #2725099)

Utilizator carinamariaCarina Maria Viespescu carinamaria Data 18 martie 2021 14:03:05
Problema Litere Scor 100
Compilator cpp-32 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=nr+f[j];
        f[x]++;
      }
      cout<<nr;
}