Untitled

#include <stdio.h>

/*
    Qsn:
    Take an integer from user
    If the number has 1 digit --> return sqaure of the number
    If the number has 2 digits --> return the difference between the sum of the digits and the original number
    If the number has 3 digits --> return the reverse of the given number
    If the number has 4 or more digits --> return the remainder of original number divided by the sum of the digits of the number
*/

int puzzleAdv(int n) {

    int temp = n, temp1 = n, temp3 = n;
    int sum = 0, sum1 = 0, sum3 = 0;
    int count = 0, result1 = 0, result2 = 0, result3 = 0, result4 = 0;

    while(temp>0) {
        count++;
        temp = temp/10;
    }

    switch (count)
    {
    case 1:
        result1 = n*n;
        // printf("Result1 = %d\n", result1);
        return result1;
       
    case 2:
         temp = n;
         sum = 0;
        while(temp>0) {
            sum = sum  + (temp%10);
            temp = temp/10;
        }
        result2 = sum-n;
        // printf("Result2 = %d\n", result2);
        return result2;
        
    case 3:
        // printf("case 3 : Result \n");
        
    while(temp1>0) {
        int rem = temp1%10;
        sum1 = (sum1*10) + rem;
        temp1 =temp1/10;
        }
        // printf("Result3 = %d\n", sum1);
        return sum1;

    case 4:
         temp3 = n;
         sum3 = 0;
        while(temp3>0) {
            sum3 = sum3  + (temp3%10);
            temp3 = temp3/10;
        }
        result4 = n%sum3;
        // printf("Result4 = %d\n", n%sum3);
        return result4;
        
    default:
        break;
    }
}

int main() {
    int n;
    printf("Enter an integer : \n");
    scanf("%d", &n);
    if(n<0) {
        printf("Enter a positive number\n");
    }
    int result = puzzleAdv(n);
    printf("Result : %d\n", result);
   
}