Cod sursa(job #204827)

Utilizator mordredSimionescu Andrei mordred Data 27 august 2008 12:36:14
Problema Litere Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
#include <stdio.h>
int n,counter,a[26],i,j,k;
char text[1<<14];
int main(){
 freopen("litere.in","r",stdin);
 freopen("litere.out","w",stdout);
 scanf("%d",&n);
 scanf("%s",&text); 
 for(i=0;i<n;++i){
    k = text[i] - 'a';    
    a[k]++;
    for(j=k+1;j<26;++j)
        counter+=a[j];}
 printf("%d\n",counter);
 return 0;
}