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Cod sursa(job #679910)
#include <iostream>
#include <fstream>
using namespace std;
int main() {
ifstream f("cifra_test.in");
ofstream g("cifra_test.out");
unsigned long long i, j, n, putere, s=0;
int t, k;
f>>t;
for(k=1; k<=t; k++) {
f>>n; s=0;
for(i=1; i<=n; i++) {
putere=i;
for(j=1; j<i; j++) { putere*=i; }
s+=putere;
// g<<s%10<<"\n";
}
g<<s%10<<"\n";
}
g.close();
return 0;
}