Cod sursa(job #2698417)
Utilizator | Data | 22 ianuarie 2021 00:25:25 | |
---|---|---|---|
Problema | Factorial | Scor | 5 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.32 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("fact.in");
ofstream fout("fact.out");
int main(){
int p, k=0;
fin>>p;
for(int j=1;j<=1000000000;j++){
k=0;
for(int i=5;j/i>=1;i*=5)
k+=j/i;
if(k==p)
cout<<j, j=1000000001;
if(k>p)
fout<<"-1", j=1000000001;
}
}