0 Compile Error

foo.cc: In function 'int main()':
foo.cc:8:16: error: 'aaa' was not declared in this scope
     cout<<" "<<aaa;
                ^~~
foo.cc:9:11: error: 'aaaaa' was not declared in this scope
     cout<<aaaaa;
           ^~~~~
foo.cc: At global scope:
foo.cc:18:3: error: expected unqualified-id at end of input
   *
   ^

代码

#include <bits/stdc++.h> 
using namespace std;
int main()
{
    int a;
    cin>>a;
    cout<<"  "<<a;
    cout<<" "<<aaa;
    cout<<aaaaa;
    cout<<" "<<aaa;
    cout<<"  "<<a;
    return 0;
}
  *
 ***
*****
 ***
  *

信息

递交者
题目
DJKS1008  字符菱形
比赛
2024年3月等考一级题单
语言
C++ 98
递交时间
11 个月前
评测时间
11 个月前
分数
0
总耗时
0ms
峰值内存
0 Bytes