Cod sursa(job #1001092)

Utilizator sinio1Stirbat Luca sinio1 Data 24 septembrie 2013 14:54:16
Problema Litere Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.32 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
ifstream f("litere.in");
ofstream g("litere.out");
int n,i,j,nr[28],rez;
char s[10000];
int main()
{
    f>>n;
    f>>s;
    for (i=0; i<n; i++)
    {
        for (j=s[i]-'a'+1; j<26; j++)
            rez+=nr[j];
        nr[s[i]-'a']++;
    }
    g<<rez;
    return 0;
}