Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
130805 何旻慧 12序列的第n项 C++ Compile Error 0 MS 0 KB 202 2025-09-17 19:17:05

Tests(0/0):

Code:

#include<iostream> // cin\cout\endl using namespace std; int main(){ int a,n,s=0; a=1; cin>>n; for (int i=2;i<=n,i++){ a+=s; s+=1; } cout<<a; return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:7:19: warning: left operand of comma operator has no effect [-Wunused-value]
     for (int i=2;i<=n,i++){
                   ^
Main.cc:7:26: error: expected ';' before ')' token
     for (int i=2;i<=n,i++){
                          ^