Cod sursa(job #947713)

Utilizator VisuianMihaiMihai Visuian VisuianMihai Data 8 mai 2013 10:56:17
Problema Litere Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include<fstream>
#include<string>
using namespace std;
ifstream fin("litere.in");
ofstream fout("litere.out");
int n,sol,fr[26];
string s;
int main()
{
    fin>>n;
    fin>>s;
    for(int i= 0; i<s.size();i++ )
    {
        fr[s[i]-'a']++;
        for(int j=s[i]-'a'+1;j<26;j++)
            sol+=fr[j];
    }
    fout<<sol;
}