Question

Develop a program to input 10 numbers from user and push them onto stack using push operation. Your program should point out the squares of even numbers saved in the stack.

Answer 1

Below is the code to input the 10 numbers and push the in the stack . Also to display the squares of the even numbers in the stack :-

#include<stdio.h>
#include<stdlib.h>
#include<math.h>

void push();

int main()
{
  
push();

return 0;
}

//push method to push the 10 input numbers in the stack and to find square of even number in stack
void push()
{
int top = -1 , length = 10 , num , stack[length];
  
if (top == length-1)
{
printf("stack is full");
}

else
{
printf("enter the 10 numbers ");
  
for(int i = 0 ; i < length ; i++)
{
scanf("%d",&num);
top = top+1;
stack[top]=num;
}

}

//display the stack
printf("Stack is :- ");
for(int i =0 ; i < length ; i++)
{
printf("%d ",stack[i]);
}

printf(" ");


//find squares of even numbers in the stack
printf("squares of even numbers in stack are :- ");
for (int i = 0 ; i < length ; i++)
{
int a;
float b;

b = sqrt((double)stack[i]);
a=b;

if(a == b)
{
if(a%2==0)
printf("%d ",stack[i]);
}

}
  
}

Screenshot of the Output:-