Cod sursa(job #709203)

Utilizator SebiSebiPirtoaca George Sebastian SebiSebi Data 7 martie 2012 20:03:23
Problema Litere Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
#include<iostream>
#include<fstream>
using namespace std;
char v[10001];
int a[27];
long long s;
int main ()
{
	int n,i,j;
	ifstream f("litere.in");
	ofstream g("litere.out");
	f>>n>>v;
	f.close();
	for(i=0;i<=n-1;i++) {
		for(j=v[i]-97+1;j<='z'-97;j++)
			s=s+a[j];
		a[v[i]-97]++;
	}
	g<<s;
	g.close();
	return 0;
}