0_0_39792385_32481.cpp: In function 'int main()':
0_0_39792385_32481.cpp:6:9: error: 'cin' was not declared in this scope
6 | cin>>a;
| ^~~
0_0_39792385_32481.cpp:3:1: note: 'std::cin' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
2 | #include <cmath>
+++ |+#include <iostream>
3 | using namespace std ;
0_0_39792385_32481.cpp:7:25: error: 'cout' was not declared in this scope
7 | if(a<101&&a>89) cout<<"A";
| ^~~~
0_0_39792385_32481.cpp:7:25: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
0_0_39792385_32481.cpp:8:24: error: 'cout' was not declared in this scope
8 | if(a<90&&a>79) cout<<"B";
| ^~~~
0_0_39792385_32481.cpp:8:24: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
0_0_39792385_32481.cpp:9:24: error: 'cout' was not declared in this scope
9 | if(a<80&&a>69) cout<<"C";
| ^~~~
0_0_39792385_32481.cpp:9:24: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
0_0_39792385_32481.cpp:10:24: error: 'cout' was not declared in this scope
10 | if(a<70&&a>59) cout<<"D";
| ^~~~
0_0_39792385_32481.cpp:10:24: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
0_0_39792385_32481.cpp:11:23: error: 'cout' was not declared in this scope
11 | if(a<60&&a>0) cout<<"E";
| ^~~~
0_0_39792385_32481.cpp:11:23: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
0_0_39792385_32481.cpp:12:24: error: 'cout' was not declared in this scope
12 | if(a<0&&a>100) cout<<"Score is error!";
| ^~~~
0_0_39792385_32481.cpp:12:24: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
|
