Reverse a sentence using recursion
To understand this example, you should have the knowledge of the following C programming topics:
- C Functions
- C User-defined functions
- C Recursion
To understand this example, you should have the knowledge of the following C programming topics:
#include <stdio.h>
void reverseSentence();
int main() {
printf("Enter a sentence: ");
reverseSentence();
return 0;
}
void reverseSentence() {
char c;
scanf("%c", &c);
if (c != '\n') {
reverseSentence();
printf("%c", c);
}
}
Enter a sentence: margorp emosewa
awesome program
This program first prints Enter a sentence: . Then, the reverseSentence() function is called.
This function stores the first letter entered by the user in c. If the variable is any character other than \n (newline), reverseSentence() is called again.
This process goes on until the user hits enter.
When the user hits enter, the reverseSentence() function starts printing characters from last.
First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.