Cod sursa(job #577385)

Utilizator valentin.harsanValentin Harsan valentin.harsan Data 10 aprilie 2011 10:39:59
Problema Litere Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include<iostream>
#include<fstream>
using namespace std;

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

int n;
short lit[27];
char a[10021];

int main() {
	int i,a1,a2=0,j;
	aa >> n;
	aa >> a;
	for(i=0;i<n;++i) {
		a1=a[i]-'a'+1; ++lit[a1];
		for(j=a1+1;j!=27;++j) {
			a2+=lit[j];
		}
	}
	ss << a2;
	return 0;
}