View Compilation Error

0_0_36910753_24956.cpp: In function 'void solve()':
0_0_36910753_24956.cpp:58:6: error: redeclaration of 'int cnt'
  int cnt = 2 * n - m;
      ^
0_0_36910753_24956.cpp:41:6: note: 'int cnt' previously declared here
  int cnt = 0;
      ^