View Compilation Error

0_0_38676165_15024.cpp: In function 'void solve()':
0_0_38676165_15024.cpp:30:18: error: expected ';' before ')' token
   30 |     cin >> n >> m)
      |                  ^
      |                  ;
0_0_38676165_15024.cpp:31:29: error: 'i' was not declared in this scope
   31 |             for (int i = 1; i <= n; ++ i) {
      |                             ^