Data Structure Implementation Using C

Author: rahulsrajput

Data Structure Using C/readme.md

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+# This is my Readme
+
+I added my readme file in this repo.
+Happy to contribute to open source.

Data Structure Using C/stack/stack.c

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+
+#include <stdio.h>
+#define maxsize 10
+
+int stack[maxsize], top = -1;
+
+void push();
+void pop();
+void display();
+
+
+int main()
+{
+    int choice;
+    
+    do
+    {
+        printf("\n----stack----\n");
+        printf("Press 1 for push\n");
+        printf("Press 2 for pop\n");
+        printf("Press 3 for display\n");
+        printf("Press 4 for exit\n");
+        printf("enter your choice: ");
+        scanf("%d",&choice);
+        
+        switch(choice)
+        {
+            case 1: push(); break;
+            case 2: pop(); break;
+            case 3: display(); break;
+            case 4: break;
+            default: printf("Invalid choice");
+        }
+    }while(choice!=4);
+}
+
+void push()
+{
+    if(top == maxsize - 1 )
+    {
+        printf("stack is overflow");
+    }
+    else
+    {
+        printf("enter value:");
+        top++;
+        scanf("%d",&stack[top]);
+    }
+}
+void pop()
+{
+    if(top == -1){
+        printf("stack is empty");
+    }
+    else
+    {
+        printf("deleted item %d",stack[top]);
+        top--;
+    }
+}
+void display()
+{
+    if (top == -1)
+    {
+        printf("stack is empty");
+    }
+    else
+    {
+        for(int i =0; i<=top; i++)
+        {
+            printf("%d\t",stack[i]);
+        }
+    }
+}