题解 | #与7无关的数#
与7无关的数
https://www.nowcoder.com/practice/776d401bf86d446fa783f0bef7d3c096
#include<cstdio>
int main(){
int n,sum=0;
while (scanf("%d", &n) != EOF){
for (int i = 1; i <= n; i++){
if (i % 7 != 0 && i % 10 != 7 && i / 10 != 7){
sum = sum + i*i;
}
}
printf("%d", sum);
}
}
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