View Compilation Error

0_0_33301531_10013.cpp: In function 'int main()':
0_0_33301531_10013.cpp:44:6: error: 'flag' was not declared in this scope
   if(flag
      ^
0_0_33301531_10013.cpp:44:6: error: expected ')' at end of input
0_0_33301531_10013.cpp:44:6: error: expected statement at end of input
0_0_33301531_10013.cpp:44:6: error: expected '}' at end of input
0_0_33301531_10013.cpp:44:6: error: expected '}' at end of input