Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
142432 谭思宸 上台阶 C++ Compile Error 0 MS 0 KB 214 2026-01-10 10:53:54

Tests(0/0):

Code:

#include<iostream> using namespace std; int main(){ int n; long long ;a[41]={0,1,2,4}; for(int i=4;i<=40;i++) a[i]=a[i-1]+a[i-2]+a[i-3] cin>>n; cout<<a[n]; return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:5:10: error: declaration does not declare anything [-fpermissive]
     long long ;a[41]={0,1,2,4};
          ^
Main.cc:5:16: error: 'a' was not declared in this scope
     long long ;a[41]={0,1,2,4};
                ^