https://postimg.cc/QK8Qy7rc 这是今天可爱老师给我们模拟测的密码提示

#include <iostream>
using namespace std;

int main() {
    int n = 1001;
    long long sum = 1; 
    int currentNumber = 1;

    for (int layer = 1; layer <= (n - 1) / 2; ++layer) {
        int step = 2 * layer;
        for (int corner = 0; corner < 4; ++corner) {
            currentNumber += step;
            sum += currentNumber;  
        }
    }

    cout << sum << endl;
    return 0;
}

算出的是669171001 有神大佬帮忙看看吗 https://files.cnblogs.com/files/zjqnq/day09.zip?t=1723359255&download=true o(TヘTo)