Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
91051 刘佳宇 09判断ASCLL码 C++ Compile Error 0 MS 0 KB 320 2024-09-21 11:14:15

Tests(0/0):

Code:

#include<iostream> using namespace std; int main(){ char a; cin>>a; if(a>='a' && a<='z'){ cout<<"Lower Letter"; } else if(a>='A' && a<='Z'){ cout<<"Upper Letter"; } else if(a>="0"&&a<"9"){ cout<<"Digidal"; } else{ cout<<"other"; } }

Run Info:

Main.cc: In function 'int main()':
Main.cc:12:16: warning: comparison with string literal results in unspecified behaviour [-Waddress]
     else if(a>="0"&&a<"9"){
                ^
Main.cc:12:16: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
Main.cc:12:23: warning: comparison with string literal results in unspecified behaviour [-Waddress]
     else if(a>="0"&&a<"9"){
                       ^
Main.cc:12:23: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]