Cod sursa(job #718119)

Utilizator misinozzz zzz misino Data 20 martie 2012 15:47:45
Problema Litere Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
#include<cstdio>
using namespace std;
FILE *f,*g;
int nr,n,i,j,a[30];
char s[10001];
int main()
{f=fopen("litere.in","r");
g=fopen("litere.out","w");
fscanf(f,"%d",&n);
fscanf(f,"%s",&s);
for(i=0;i<n;++i)
{for(j=s[i]-97+1;j<=26;++j)
	nr=nr+a[j];
a[s[i]-97]++;
}
fprintf(g,"%d\n",nr);
fclose(f);
fclose(g);
return 0;
}