View Compilation Error

0_0_33611867_17073.cpp: In function 'int main()':
0_0_33611867_17073.cpp:63:2: error: 'p1' was not declared in this scope
  p1.close();p2.close();
  ^
0_0_33611867_17073.cpp:63:13: error: 'p2' was not declared in this scope
  p1.close();p2.close();
             ^