Cod sursa(job #579096)

Utilizator crazzytudTudor Popa crazzytud Data 11 aprilie 2011 20:50:43
Problema Litere Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
#include<stdio.h>

int f[30];
int main()
{
	freopen("litere.in","r",stdin);
	freopen("litere.out","w",stdout);
	int n,num=0,sortat,i,j;
	char s[10001],aux;
	
	scanf("%d\n",&n);
	gets(s);
	
	for(i=0;i<n;i++)
	{
		f[s[i]-'a']++;
		for(j=s[i]-'a'+1;j<26;j++)
			num+=f[j];
	}
		
	
	printf("%d",num);
	return 0;
}