View Compilation Error

0_0_38710252_20321.cpp: In function 'int main()':
0_0_38710252_20321.cpp:44:15: error: 'cin' was not declared in this scope
   44 |         while(cin >> n >> m){
      |               ^~~
0_0_38710252_20321.cpp:3:1: note: 'std::cin' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
    2 | #include<string>
  +++ |+#include <iostream>
    3 | #define inf 0x3f3f3f3f
0_0_38710252_20321.cpp:65:17: error: 'cout' was not declared in this scope
   65 |                 cout << solve(s1,e1,s2,e2) << endl;
      |                 ^~~~
0_0_38710252_20321.cpp:65:17: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
0_0_38710252_20321.cpp:65:47: error: 'endl' was not declared in this scope
   65 |                 cout << solve(s1,e1,s2,e2) << endl;
      |                                               ^~~~
0_0_38710252_20321.cpp:3:1: note: 'std::endl' is defined in header '<ostream>'; did you forget to '#include <ostream>'?
    2 | #include<string>
  +++ |+#include <ostream>
    3 | #define inf 0x3f3f3f3f