Question

In this example you are allowed to use from the C standard library only functions for input and output (e.g. printf(), scanf())

Complete the following functions using C programming language:

For this exercise you should be able to write a logical expression (i.e., with logical operators) which checks if some integer x consists of exactly 5 digits. Ex: 30498 and -14004 are 5-digit numbers, while 1098, -1 and 34 are not.

Complete the intQ2(intQ2_input) function that takes an input integer parameter and returns 1 if the number is five digits and 0.

Answer 1

Code :

#include<stdio.h>
int intQ2(int);
int main(){
    int intQ2_input;
    printf("Enter input number: ");
    scanf("%d", &intQ2_input);
    int check = intQ2(intQ2_input);
    if(check == 1)
    {
        printf("Entered number has 5 digits");
    }
    else
        printf("Entered number is not 5 digited number");
    
    return 0;
}

int intQ2(int n)
{
    int count = 0;
    if(n < 0)
    {
        n = -n;
    }
    while(n > 0)
    {
        count ++;
        n /= 10;
    }
    if(count == 5)
    {
        return 1;
    }
    return 0;
}

Screenshots: