Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
129809 罗迎甲 青蛙跳台阶 C++ Compile Error 0 MS 0 KB 294 2025-09-06 16:06:45

Tests(0/0):

Code:

#include<iostream> #include<cstdio> #include<cstring> #include<cmath> using namespace std; int main(){ long long a[51] = {0, 1, 2, 4}; // 初始化前4项（索引0~3） int n; long long q = 0; cin >> n; cout <<(a-1)*2; return 0;

Run Info:

Main.cc: In function 'int main()':
Main.cc:13:18: error: invalid operands of types 'long long int*' and 'int' to binary 'operator*'
     cout <<(a-1)*2;
                  ^
Main.cc:9:15: warning: unused variable 'q' [-Wunused-variable]
     long long q = 0;
               ^
Main.cc:17:13: error: expected '}' at end of input
     return 0;
             ^