View Compilation Error

0_0_36292033_13169.cpp: In function 'void solve()':
0_0_36292033_13169.cpp:52:17: error: 'cnt' was not declared in this scope
  for(int i=0;i<=cnt;i++)
                 ^
0_0_36292033_13169.cpp:54:8: error: incompatible types in assignment of 'int' to 'int [3]'
   tr[i]=0;
        ^