Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
134467 zxy 04保留两位小数 C++ Compile Error 0 MS 0 KB 101 2025-10-27 17:09:25

Tests(0/0):

Code:

using namespace std; int main(){ int a,b,c,d; double PI=5.0/2.5; printf("%.2lf",PI); }

Run Info:

Main.cc: In function 'int main()':
Main.cc:5:20: error: 'printf' was not declared in this scope
   printf("%.2lf",PI);
                    ^
Main.cc:3:7: warning: unused variable 'a' [-Wunused-variable]
   int a,b,c,d;
       ^
Main.cc:3:9: warning: unused variable 'b' [-Wunused-variable]
   int a,b,c,d;
         ^
Main.cc:3:11: warning: unused variable 'c' [-Wunused-variable]
   int a,b,c,d;
           ^
Main.cc:3:13: warning: unused variable 'd' [-Wunused-variable]
   int a,b,c,d;
             ^