Question

How to implement a function that reverse the letters of a string in C

Answer 1

#include <stdio.h>
#include <string.h>
 
void revers_letters(char arr[], int start, int end) { 
    char ch; 
     
    while (start <= end) { 
        ch = arr[start]; 
        arr[start] = arr[end]; 
        arr[end] = ch; 
         
        start++; 
        end--; 
    } 
} 
 
int main() {
    char arr[100] = "java c python"; 
     
    revers_letters(arr, 0, strlen(arr) - 1); 
     
    puts(arr); 
}
 
 
 
/*
run:
 
nohtyp c avaj
 
*/

 

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