Implementation of Stack Using Array in C Program2 min read

Stack Program in C:
This article covers stack implementation using an array in c programming. Here, we will see how to insert in the stack, remove and display the elements in the stack.

The basic operation of stack are:

  • PUSH(): This function is used to insert an element on top of the stack.
  • POP(): This function is used to remove the element from the top of the stack.
  • DISPLAY(): This function is used to display all the elements present in the stack.

Some of the terms related to stack:

  • OVERFLOW: It is a state in STACK when the Stack is FULL.
  • UNDERFLOW: It is a state in STACK when the Stack is EMPTY.

Lets us understand through C Program for stack using Array.

C Program to Implement Stack using Array with Output

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
#include <stdio.h>
 
int stack[50], stackSize, topElmt;
 
void push(void);
void pop(void);
void display(void);
 
int main()
{
  int choices;
  topElmt = -1;
  printf("Enter the size for STACK:");
  scanf("%d", &stackSize);
 
  printf("--------------------------------");
  printf("\n STACK OPERATIONS USING ARRAY");
  printf("\n--------------------------------");
 
  printf("\nPress 1 to PUSH");
  printf("\nPress 2 to POP");
  printf("\nPress 3 to DISPLAY");
  printf("\nPress 4 to EXIT");
 
  do {
    printf("\nEnter Your Choice:");
    scanf("%d", &choices);
 
    switch (choices)
    {
      case 1:
        {
         //calling PUSH() Function
          push();
          break;
        }
 
      case 2:
        {
         //calling POP() Function
          pop();
          break;
        }
 
      case 3:
        {
         //calling DISPLAY() Function
          display();
          break;
        }
 
      case 4:
        {
          printf("\n---------END----------");
          break;
        }
 
      default:
        {
          printf("\nWrong Choice.");
        }
    }
  }
 
  while (choices != 4);
  return 0;
}
 
//PUSH Function
void push()
{
  int x;
 
//Checkfor if STACK is FULL or NOT
  if (topElmt >= stackSize - 1)
  {
    printf("\nSTACK is OVERFLOW");
 
  }
  else
  {
    printf("Enter an Integer that you want to insert: ");
    scanf("%d", &x);
    topElmt++;
    stack[topElmt] = x;
  }
}
 
//POP Function
void pop()
{
//Check if STACK is EMPTY or NOT
  if (topElmt <= -1)
  {
    printf("\nSTACK is UNDERFLOW");
  }
  else
  {
   //displaying removed element from top oa a STACK
    printf("\nThe popped(removed) elements is %d", stack[topElmt]);
    topElmt--;
  }
}
 
//DISPLAY Function
void display()
{
  int i;
  if (topElmt >= 0)
  {
    printf("The Elements present in a STACK are: ");
 
    for (i = topElmt; i >= 0; i--)
    {
      printf("\n%d", stack[i]);
    }
 
    printf("\nEnter Your Choice");
  }
  else
  {
    printf("\n The STACK is empty");
  }
}

The output of implementing stack using array in C program.

MORE

Find the output ab, cd, ef, g for the input a,b,c,d,e,f,g in Javascript and Python

In this tutorial, we will write a program to find a pairs of elements from an array such that for the input [a,b,c,d,e,f,g] we will …
Read More

String Pattern Programs in C

In this tutorial, we will write various C pattern programs for String. Before that, you may go through the following topics in C. for loop …
Read More

Java Program to Find pair of Integers in Array whose sum is given Number

In this tutorial, we will write a program to find a pair of elements from an array whose sum equals a given number in java …
Read More

Program to Print Diamond Alphabet Patterns in C

In this tutorial, we will learn to write a C program to print Diamond patterns using alphabets/characters. However, in this tutorial, we will create a …
Read More

Half Diamond Pattern in C using Alphabets

In this tutorial, we will learn and code the half diamond alphabet patterns in C programming language. However, in this tutorial, we will create a …
Read More

Half Pyramid of Alphabets in C

In this tutorial, we will learn and code alphabet patterns in C programming language specifically the Half pyramid of alphabets in C programming. However, in …
Read More