Cod sursa(job #336639)

Utilizator aladinaladin aladinn aladin Data 31 iulie 2009 22:40:05
Problema Litere Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include <cstdio>
#include <cstring>
int main()
{int nr=0,n, i, j, v[30];
 char s[10009];
 
 freopen("litere.in","r",stdin);
 freopen("litere.out","w",stdout);
 scanf("%d\n",&n);
 scanf("%s",&s);
 memset(v,0,sizeof(v));
 for (i=0;i<n;i++)
 {nr+=v[s[i]-'a'];
  for (j=0;j<=s[i]-'a'-1;j++) ++v[j];
 }
 printf("%d",nr);
 return 0;}