From a5f1a6df51a69eba7959b44b2f63892b6b131fa2 Mon Sep 17 00:00:00 2001
From: Sayan Majhi <sayan2044@gmail.com>
Date: Sat, 26 Oct 2019 02:53:44 -0400
Subject: [PATCH] Create str_rev_stack.c

Here I have written a C program to reverse a string using stack.
---
 stack/str_rev_stack.c | 59 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 stack/str_rev_stack.c

diff --git a/stack/str_rev_stack.c b/stack/str_rev_stack.c
new file mode 100644
index 0000000..7b73d5c
--- /dev/null
+++ b/stack/str_rev_stack.c
@@ -0,0 +1,59 @@
+#include<stdio.h> 
+#include<string.h> 
+#define MAX 100	
+int top=-1;
+int item;
+char stackstring[MAX];
+void pushChar(char item);
+char popChar(void);
+int isEmpty(void);
+int isFull(void);
+
+int main()
+{
+char str[MAX];
+int i;
+printf("Input a string: ");
+gets(str);
+for(i=0;i<strlen(str);i++)
+pushChar(str[i]);
+for(i=0;i<strlen(str);i++)
+ str[i]=popChar();
+printf("Reversed String is: %s\n",str);
+return 0;
+}
+void pushChar(char item)
+{
+if(isFull())
+{
+printf("\nStack is FULL !!!\n");
+return;
+}
+top=top+1;
+stackstring[top]=item;
+}
+char popChar()
+{
+if(isEmpty())
+{
+printf("\nStack is EMPTY!!!\n");
+return 0;
+}
+item = stackstring[top];
+top=top-1;
+return item;
+}
+int isEmpty()
+{
+if(top==-1)
+return 1;
+else
+return 0;
+}
+int isFull()
+{
+if(top==MAX-1)
+return 1;
+else
+return 0;
+}