1 条题解

  • 0
    @ 2026-1-10 15:43:06

    #include #include using namespace std;

    int main() { double S; cin >> S;

    long long M = round(S * 1e8);
    
    if (M > 1e8) {
        cout << 0 << endl;
        return 0;
    }
    
    if (M == 0) {
        // 至少一个 mi = 0
        long long ans = 101LL * 101 * 101 * 101 - 100LL * 100 * 100 * 100;
        cout << ans << endl;
        return 0;
    }
    
    // M > 0
    int cnt = 0;
    for (int a = 1; a <= 100; a++) {
        for (int b = 1; b <= 100; b++) {
            for (int c = 1; c <= 100; c++) {
                long long prod_abc = 1LL * a * b * c;
                if (M % prod_abc != 0) continue;
                long long d = M / prod_abc;
                if (d >= 1 && d <= 100) {
                    cnt++;
                }
            }
        }
    }
    
    cout << cnt << endl;
    
    return 0;
    

    }

    • 1

    信息

    ID
    8262
    时间
    1000ms
    内存
    256MiB
    难度
    1
    标签
    递交数
    1
    已通过
    1
    上传者