Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
76763 周梓易 数列求和 C++ Compile Error 0 MS 0 KB 248 2024-06-02 17:25:25

Tests(0/0):

Code:

#include<bits/stdc++.h> using namespace std; int main(){ int n; cin>>n; long long a[n+1]; a[1]=1; for[int i=2;i<=n;i++]{ a[i]=a[i-1]*2; } long long sum=0; for(int i=1;i<=n;i++){ sum+=a[i]; } cout<<sum; return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:10:5: error: expected '(' before '[' token
  for[int i=2;i<=n;i++]{
     ^
Main.cc:10:6: error: expected identifier before 'int'
  for[int i=2;i<=n;i++]{
      ^
Main.cc:10:13: error: expected ']' before ';' token
  for[int i=2;i<=n;i++]{
             ^
Main.cc: In lambda function:
Main.cc:10:13: error: expected '{' before ';' token
Main.cc: In function 'int main()':
Main.cc:10:14: error: 'i' was not declared in this scope
  for[int i=2;i<=n;i++]{
              ^
Main.cc:10:22: error: expected ')' before ']' token
  for[int i=2;i<=n;i++]{
                      ^
Main.cc:10:22: error: expected primary-expression before ']' token