Cod sursa(job #1001096)

Utilizator GuitarPro07Alex Sivu GuitarPro07 Data 24 septembrie 2013 15:04:28
Problema Litere Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include <fstream>

using namespace std;

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

char s[10001];
int nr[30];
int main()
{
    int n,i,j,rez=0;
    in>>n>>s;
    for(i=0; i<n; i++)
    {
        for(j=s[i]-'a'+1; j<26; j++)
            rez+=nr[j];
        nr[s[i]-'a']++;

    }
    out<<rez;
    return 0;
}