题解 | #牛牛的素数和#
牛牛的素数和
https://www.nowcoder.com/practice/d748d79f68ab443482c5547d93824f50
#include <stdio.h> int main() { int l, r , sum = 0; while(scanf("%d %d",&l ,&r) != EOF) { int i, j, tmp = 1; for(i = l; i <= r; i++) { if(l == 2) sum += 2; else if(i % 2 != 0 && i % 3 != 0 && i % 5 != 0 && i % 7 != 0) sum += i; } printf("%d",sum); } return 0; }