Stack using C

Stack using C

PROGRAM : For Stack using C


  1. #include <stdio.h>
  2.  
  3. #include <stdlib.h>
  4.  
  5.  
  6. #define MAX 4
  7.  
  8.  
  9.  
  10. struct stack
  11.  
  12. {
  13.  
  14.     int a[MAX];
  15.  
  16.     int top;
  17.  
  18. }st;
  19.  
  20. int stfull(){
  21.  
  22.     if(st.top>=MAX-1)return 1;
  23.  
  24.     else return 0;
  25.  
  26. }
  27.  
  28. int push(int val){
  29.  
  30.     st.top++;
  31.  
  32.     st.a[st.top]=val;
  33.  
  34. }
  35.  
  36. int stempty(){
  37.  
  38.     if(st.top==-1)return 1;
  39.  
  40.     else return 0;
  41.  
  42.     }
  43.  
  44. int pop(){
  45.  
  46.     st.top--;
  47.  
  48.     return 0;
  49.  
  50.     }
  51.  
  52. int display(){
  53.  
  54.     int i;
  55.  
  56.     if(stempty()==1)printf("\nstack is empty\n");
  57.  
  58.     else{
  59.  
  60.             printf("\n");
  61.  
  62.     for(i=st.top;i>=0;i--){
  63.  
  64.         printf("|%d|",st.a[i]);
  65.  
  66.         }
  67.  
  68.     }
  69.  
  70.     return 0;
  71.  
  72. }
  73.  
  74.  
  75. /* Main function */
  76.     int main()
  77.  
  78. {
  79.  
  80.  int val;
  81.  
  82.  int choice;
  83.  
  84.     st.top=-1;
  85.  
  86.    label:
  87.  
  88.  
  89.  
  90.     printf("\nselect the choice\n");
  91.  
  92.     printf("1=push\n2=pop\n3=peep\n4=display\n5=clear screen\n");
  93.  
  94.     scanf("%d",&choice);
  95.  
  96.  
  97.  
  98.     switch(choice){
  99.  
  100.         case 1:
  101.  
  102.  
  103.  
  104.             if(stfull()==1){
  105.  
  106.                 printf("\nstack is full\n");
  107.  
  108.             }
  109.  
  110.             else{
  111.  
  112.                 printf("\nenter value=");
  113.  
  114.             scanf("%d",&val);
  115.  
  116.                 push(val);
  117.  
  118.             }
  119.  
  120.                 goto label;
  121.  
  122.             break;
  123.  
  124.  
  125.  
  126.  
  127.  
  128.         case 2:
  129.  
  130.             if(stempty()==1){printf("\nstack is empty\n");}
  131.  
  132.             else {
  133.  
  134.                     printf("\n%d deleted\n",st.a[st.top]);
  135.  
  136.                     val=pop();
  137.  
  138.  
  139.  
  140.             }
  141.  
  142.             goto label;
  143.  
  144.             break;
  145.  
  146.         case 3:  printf("\n a[st.top]=%d",st.a[st.top]);
  147.  
  148.  
  149.  
  150.             goto label;
  151.  
  152.            break;
  153.  
  154.       case 4:
  155.  
  156.           display();
  157.  
  158.           goto label;
  159.  
  160.           break;
  161.  
  162.       case 5:
  163.  
  164.          system("cls");
  165.  
  166.          goto label;
  167.  
  168.            break;
  169.  
  170.         default:
  171.  
  172.             exit(0);
  173.  
  174.     }
  175.  
  176.  
  177.  
  178.     return 0;
  179.  
  180. }
  181.  
  182.  

Comments

Post a Comment

Popular posts from this blog

Introduction to ChatGPT: Explain what ChatGPT is, how it works, and what it is used for.

Introduction to ChatGPT ChatGPT is an AI language model developed by OpenAI that is based on the GPT (Generative Pre-trained Transformer) architecture. It is designed to generate natural language text that is both coherent and contextually relevant. ChatGPT is trained on a vast amount of text data, including books, articles, and websites. During training, it learns the patterns and structures of natural language and uses this knowledge to generate text in response to prompts. The model works by predicting the most probable next word in a sequence of words based on the previous words in the sequence. It does this by assigning a probability score to each word in its vocabulary based on the context of the prompt. The word with the highest probability score is then selected as the next word in the sequence. This process is repeated until the desired length of the text is generated. ChatGPT is used for various applications, including chatbots, content generation, language translation, an...
Read more

Multi Level Inheritance In cpp

Multi Level Inheritance In cpp PROGRAM: #include<iostream> using namespace std; class A{ public: A(){ cout<<"\n grand parent"; } }; class B:public A{ public: B(){ cout<<"\n parent1"; } }; class C:public B{ public: C(){ cout<<"\n child"; } }; int main(){ C c; return 0; }
Read more

Hybrid Inheritance In cpp

Hybrid Inheritance In cpp PROGRAM: #include<iostream> using namespace std; class A{ public: A(){ cout<<"\n grand parent"; } }; class B:public A{ public: B(){ cout<<"\n parent1"; } }; class C:public A{ public: C(){ cout<<"\n parent2"; } }; class D:public B,public C{ public: D(){ cout<<"\n child class"; } }; int main(){ D d; return 0; }
Read more