Cod sursa(job #365272)

Utilizator EugenStoicaEugen Stoica EugenStoica Data 18 noiembrie 2009 12:17:59
Problema Litere Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.29 kb
Raporteaza aceasta sursa 
#include<fstream.h>

ifstream fin("litere.in");
ofstream fout("litere.out");


int main()
{
int n,i,j,x=0;
char s[10001];
int f[30]={0};
fin>>n;fin.get();
fin.get(s,n+1);
for(i=0;i<n;i++)
	{
	f[(s[i]-'a')]++;
	for(j=s[i]-'a'+1;j<26;j++)
		x+=f[j];
	}
fout<<x;
return 0;
}