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Categories: Strings. 1 Comment on C program to reverse a given string
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In this article we will learn to implement a C program to reverse a given string. A C program is provided below to reverse a given string without using predefined function.

 

Program is as follows:

#include<stdio.h>
#include<string.h>
int main()
{
	char str[20];
	printf("Enter a string: ");
	scanf("%s", str);
	int length = strlen(str);
	for(int i=0, j=length-1; i<j; i++, j--)
	{
		int temp = str[i];
		str[i] = str[j];
		str[j] = temp;
	}
	printf("Reversed string is: %s", str);
	return 0;
}

 

Input and output for the above program is as follows:

Enter a string: india
Reversed string is: aidni

 

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Suryateja Pericherla

Suryateja Pericherla, at present is a Research Scholar (full-time Ph.D.) in the Dept. of Computer Science & Systems Engineering at Andhra University, Visakhapatnam. Previously worked as an Associate Professor in the Dept. of CSE at Vishnu Institute of Technology, India.

He has 11+ years of teaching experience and is an individual researcher whose research interests are Cloud Computing, Internet of Things, Computer Security, Network Security and Blockchain.

He is a member of professional societies like IEEE, ACM, CSI and ISCA. He published several research papers which are indexed by SCIE, WoS, Scopus, Springer and others.

1 Comment

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Thanks for the program, helped me a lot.

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