範例程式碼 uva382
//uva382
#include <iostream>
#include <cmath>
#include <cstdio>
using namespace std;
int main() {
int num, ans;
cout << "PERFECTION OUTPUT" << endl;
while(cin >> num) { // read input
if(num == 0) // 0 for end program
break;
ans = 1;
for(int i = 2; i <= sqrt(num); i++) { // start checking
if(num % i == 0) { // 檢查是否為因數
ans = ans + i + (num / i); // add to answer
if(i == sqrt(num)) // 去掉重複 ex:9=3+3
ans -= i;
}
}
printf("%5d ", num); // output number
// output answer
if(ans < num || num == 1) // 1 for special case
cout << "DEFICIENT" << endl;
else if(ans == num)
cout << "PERFECT" << endl;
else
cout << "ABUNDANT" << endl;
}
cout << "END OF OUTPUT" << endl;
return 0;
}