View Compilation Error

0_0_39450221_18007.cpp: In function 'int main()':
0_0_39450221_18007.cpp:67:5: error: 'ios' has not been declared
   67 |     ios::sync_with_stdio(0);
      |     ^~~
0_0_39450221_18007.cpp:68:5: error: 'cin' was not declared in this scope
   68 |     cin>>n>>m;
      |     ^~~
0_0_39450221_18007.cpp:4:1: note: 'std::cin' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
    3 | #include <vector>
  +++ |+#include <iostream>
    4 | #define ll long long
0_0_39450221_18007.cpp:78:5: error: 'cout' was not declared in this scope
   78 |     cout<<res;
      |     ^~~~
0_0_39450221_18007.cpp:78:5: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?