Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
101511 袁龙浩 输出成绩等级II C++ Compile Error 0 MS 0 KB 519 2024-12-15 14:04:23

Tests(0/0):

Code:

#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int n; cin>>n; switch(n){ case n>=90:cout<<'A'; break; case n>=70 || a<90:cout<<'B'; break; case n>=60 || a<70:cout<<'C'; break; case n<60:cout<<'D'; break; } return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:11:17: error: the value of 'n' is not usable in a constant expression
         case n>=90:cout<<'A';
                 ^
Main.cc:8:9: note: 'int n' is not const
     int n;
         ^
Main.cc:11:17: error: the value of 'n' is not usable in a constant expression
         case n>=90:cout<<'A';
                 ^
Main.cc:8:9: note: 'int n' is not const
     int n;
         ^
Main.cc:13:23: error: 'a' was not declared in this scope
         case n>=70 || a<90:cout<<'B';
                       ^
Main.cc:17:16: error: the value of 'n' is not usable in a constant expression
         case n<60:cout<<'D';
                ^
Main.cc:8:9: note: 'int n' is not const
     int n;
         ^
Main.cc:17:16: error: the value of 'n' is not usable in a constant expression
         case n<60:cout<<'D';
                ^
Main.cc:8:9: note: 'int n' is not const
     int n;
         ^