In this tutorial, we will discuss the concept of Display reverse of a string using loops in C language
In this post, we are going to learn how to reverse every word of the given string by the user and display the reversed string as an output
here, we are used for loop, while loop and do-while loop for display reversed string of the given string
Program 1
The program request the user to enter a string and the program displays the reversed string of the given string using for loop in C language
#include <stdio.h> #include <stdlib.h> int main() { char str[100];//declare a character array int i,len,temp; printf("Enter a String as you wish\n"); gets(str); //input string len=strlen(str); for(i=0; i<len/2; i++){ temp=str[i]; str[i]=str[len-i-1]; str[len-i-1]=temp; } printf("Given String is reversed here\n%s ",str); getch(); return 0; }
When the above code is executed, it produces the following result
Explanation
Program 2
The program request the user to enter a string and the program displays the reversed string of the given string using while loop in C language
#include <stdio.h> #include <stdlib.h> int main() { char str[100];//declare a character array int i,len,temp; printf("Enter a String as you wish\n"); gets(str); //input string len=strlen(str); i=0; while(i<len/2){ temp=str[i]; str[i]=str[len-i-1]; str[len-i-1]=temp; i++; } printf("Given String is reversed here\n%s ",str); getch(); return 0; }
When the above code is executed, it produces the following result
Explanation
Program 3
The program request the user to enter a string and the program displays the reversed string of the given string using do-while loop in C language
#include <stdio.h> #include <stdlib.h> int main() { char str[100];//declare a character array int i,len,temp; printf("Enter a String as you wish\n"); gets(str); //input string len=strlen(str); i=0; do{ temp=str[i]; str[i]=str[len-i-1]; str[len-i-1]=temp; i++; }while(i<len/2); printf("Given String is reversed here\n%s ",str); getch(); return 0; }
When the above code is executed, it produces the following result
Explanation
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