Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
155635 zxy 求点积 C++ Compile Error 0 MS 0 KB 279 2026-06-08 17:25:14

Tests(0/0):

Code:

#include <iostream> using namespace std; int main(){ int n; cin>>n; for(int i=0;i<n;i++){ cin>>a[i]; } for(int i=0;i<n;i++){ cin>>b[i]; } long long sum=0; for(int i=0;i<n;i++){ sum=sum+a[i]*b[i]; } cout<<sum;

Run Info:

Main.cc: In function 'int main()':
Main.cc:7:11: error: 'a' was not declared in this scope
      cin>>a[i];
           ^
Main.cc:11:11: error: 'b' was not declared in this scope
      cin>>b[i];
           ^
Main.cc:15:15: error: 'a' was not declared in this scope
       sum=sum+a[i]*b[i];
               ^
Main.cc:15:20: error: 'b' was not declared in this scope
       sum=sum+a[i]*b[i];
                    ^
Main.cc:17:14: error: expected '}' at end of input
     cout<