Here, We are performing push and pop operation of stack. #include<stdio.h> #include<conio.h> void push(); void pop(); void main() { int ch,c; clrscr(); do { printf("\n***SELECT OPERATION OF STACK**\n"); printf("\n1.PUSH OPERATION\n2.POP OPERATION\n"); printf("\nEnter you choice::"); scanf("%d",&ch); switch(ch) { case 1: push(); break; case 2: pop(); break; default: printf("\n**INVALID CHOICE**\n"); } printf("\nDOU YOU WANT TO QUIT(0 or 1)::"); scanf("%d",&c); }while(c==0); } void push() { int a[10],n,i,top=-1,no; printf("\n***PUSH OPERATION**\n"); printf("\nEnter the size of array::"); scanf("%d",&n); printf("\n**Enter array elements**\n"); for(i=0;i<n;i++) { scanf("%d",&a[i]); top++; } printf("\nEnter element to insert::"); scanf("%d",&no); if(top>=n) { printf("\n**STACK IS OVERFLOW**\n"); } else { top++; a[top]=no; } printf("\n***AFTER POUSH OPERATION**\n"); for(i=0;i<=top;i++)…