Problem	mountainjourney2
User	YunQingOng
Submission Time	2026-06-26 15:20:05
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

mountainjourney2.cpp: In function ‘int main()’:
mountainjourney2.cpp:3:5: error: ‘cin’ was not declared in this scope
3 | cin >> n>>m;
| ^~~
mountainjourney2.cpp:6:9: error: ‘cout’ was not declared in this scope
6 | cout << a-b;
| ^~~~
mountainjourney2.cpp:8:9: error: ‘cout’ was not declared in this scope
8 | cout << b-a;
| ^~~~