题解 | #完全数计算#
完全数计算
https://www.nowcoder.com/practice/7299c12e6abb437c87ad3e712383ff84
#include <iostream>
using namespace std;
int main() {
int a, b=0,c,i;
while (cin >> a ) { // 注意 while 处理多个 case
for ( i=1; i<a; i++) {
for (int j=1; j*j<=i; j++) {
if (i%j==0) {
b=b+j;
}
}
if (i==b) {
c++;
}
}
}
cout << c << endl;
}
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