View Compilation Error

0_0_16294469_29817.cpp: In function 'void ins(int, int)':
0_0_16294469_29817.cpp:61:14: error: 'yp' was not declared in this scope
  xs[xp]=x;ys[yp++]=y;
              ^
0_0_16294469_29817.cpp: In function 'void del(int, int)':
0_0_16294469_29817.cpp:67:16: error: 'p' was not declared in this scope
  for(int i=0;i<p;i++){
                ^
0_0_16294469_29817.cpp: In function 'void que(int, int)':
0_0_16294469_29817.cpp:78:16: error: 'p' was not declared in this scope
  for(int i=0;i<p;i++){
                ^