#include <stdio.h> #include <stdlib.h> #include <string.h> int main() { char numberString[20]; int number; printf("Please enter a positive integer: "); scanf("%s", numberString); number = atoi(numberString); printf("Original number: %d\n", number); int length = strlen(numberString); printf("Reversed number: "); for (int i = length - 1; i >= 0; i--) { printf("%c", numberString[i]); } printf("\n"); return 0; }#include<stdio.h> int main() { int r,temp,num,sum=0; printf("the given number: "); scanf("%d" ,&num); temp=num; while(temp!=0) { r=temp%10; sum=sum*10+r; temp=temp/10; } printf("reverse number:%d\n",sum); }#include<stdio.h> int main(){ int n=23450; int rev_num = 0; while(n!=0){ rev_num = rev_num * 10 + n%10; n = n/10; } printf("%d", rev_num); }