Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
115942 吴梓玄 合法的标识符 C++ Compile Error 0 MS 0 KB 391 2025-04-05 17:22:06

Tests(0/0):

Code:

#include <bits/stdc++.h> using namespace std; int main() { char s[25]; cin>>s; int q=0; for(int i=0;i<strlen(s);i++){ if(s[0]>='0' && s[0]<='9'){ strcpy(q,1); } if(s[i]<'0' || (s[i]>'9' && s[i]<'A') || (s[i]>'Z' && s[i]<'_') || (s[i]>'_' && s[i]<'a')|| s[i]>'z' ){ strcpy(q,1); } } if(q==1){ cout<<'no'<<'\n'; } else{ cout<<'yes'<<'\n'; } r

Run Info:

Main.cc:17:9: warning: multi-character character constant [-Wmultichar]
   cout<<'no'<<'\n';
         ^
Main.cc:20:9: warning: multi-character character constant [-Wmultichar]
   cout<<'yes'<<'\n';
         ^
Main.cc: In function 'int main()':
Main.cc:8:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i