Question

C语言程序：输出2-1000内所有完数。完数即所有因子之和正好等于该数本身，用遗传算法

Answer 1

/*
6 28 496
Press any key to continue
*/
#include <stdio.h>
#define M 1000

void main () {
int i,j,sum;
for(i = 2;i < M;i++) {
sum = 0;
for(j = 1;j < i;j++)
if(i % j == 0)
sum += j;
if(sum == i) printf("%d ",sum);
}
printf("\n");
}