Cod sursa(job #1693664)

Utilizator bercean.bogdanBogdan-Alexandru Bercean bercean.bogdan Data 23 aprilie 2016 17:24:41
Problema Factorial Scor 10
Compilator c Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
#include <stdio.h>
#include <stdlib.h>

int main()
{
    FILE *fp=fopen("fact.in","r");
    FILE *f=fopen("fact.out","w");
    unsigned long int p,i,N=0;

    fscanf(fp,"%d",&p);

    for(i=5;i<=p;i=i*5)
    {
        N++;
    }

    if(!p) fprintf(f,"%d",1);
    else
    fprintf(f,"%d",5*(p-N));



    return 0;
}