题解 | 与7无关的数
与7无关的数
https://www.nowcoder.com/practice/776d401bf86d446fa783f0bef7d3c096
#include <stdio.h>
using namespace std;
int main() {
int n;
while (scanf("%d", &n) != EOF) {
int sum = 0;
for (int i = 0; i <= n; i++) {
if (i % 7 != 0 && i % 10 != 7 && i / 10 != 7) {
sum += i * i;
}
}
printf("%d", sum);
}
return 0;
}
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