View Compilation Error

0_0_18478802_18390.cpp: In function 'bool check(int)':
0_0_18478802_18390.cpp:25:31: error: 'tt' was not declared in this scope
  for( int t = 0; t < top; t = tt + 1 ) {
                               ^
0_0_18478802_18390.cpp: In function 'int main()':
0_0_18478802_18390.cpp:35:9: error: expected primary-expression before ')' token
  while( ){
         ^