11/11/20 23:20:51.73
>>414
#include <stdio.h>
int main(){
int n, sum = 2, i = 2, j;
printf("n = ");
scanf("%d", &n);
printf("素数：");
while (i++ < n) {
j = 2;
while ((i % j) && j * j <= i)
j++;
if (i % j) {
printf("%d,", i);
sum += i;
}
}
printf(" 累積：%d¥n", sum);
return 0;
}