Movement of variables in Stack wihout any graphics

Movement of variables in Stack wihout any graphics Code : #include<iostream.h> #include<conio.h> #include<dos.h> #include<string.h> void hori(int,int); void para(int,int); void vert(int,int); static int x=3,y=15; char ch; void main() { clrscr(); cout <<" enter a character and see the path "; cin >>ch; gotoxy(x,y); x++; cout<<ch; hori(x,y); getch(); } /* horizontal path */ void hori(int x,int y) { //x=4,y=15 for(;x<=30;x++) { gotoxy(x,y); delay(100); cout<<" "<<ch; } //x=31,y=15 para(x,y); } /*parabolic path*/ void para(int x,int y) { //x31,y15 // a,b for erasing previous print int a=0,b=0; for(;x<=50&&y<=30;x++,y++) { a=x,b=y ; gotoxy(x,y); delay(100); cout<<ch; gotoxy(a,b); delay(200); cout<<" "; } // last values for a=49 b=29 gotoxy(a+1,b+1); delay(200); cout<<" "; //x51y31 vert(x,y); } /*vertical path*/ void vert(int x,int y) { //x51y31 int a=0; for(;y<=40;y++) { //a for erasing previous print //initial a=30 a=y; gotoxy(x,y); //(51,31 ) delay(200); cout<<ch; gotoxy(x,a); //(51,30) delay(200); cout<<" "; a++; } //x51y51 gotoxy(x,y); cout<<ch; } //exit at x y