Cod sursa(job #944613)

Utilizator predatorGigi Valoare predator Data 29 aprilie 2013 09:10:20
Problema Litere Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.31 kb
Raporteaza aceasta sursa 
#include<fstream>
#define DIM 100000
using namespace std;
ifstream f("litere.in");
ofstream g("litere.out");
int sol,n,i,j,v[300];
char s[DIM];
int main ()
{
	f>>n;
	f>>s[0];
	f.get(s+1,DIM,EOF);
	for(i=0;i<n;++i)
	{
		for(j=s[i]+1;j<='z';++j)
			sol+=v[j];
		v[s[i]]++;
	}
	g<<sol;
	return 0;
}