TCS NQT Supermarket Coding Question With Solution

TCS NQT Supermarket Coding Question With Solution

A supermarket maintains a pricing format for all its products. A value N is printed on each product. When the scanner reads the value N on the item, the product of all the digits in the value N is the price of the item. The task here is to design the software such that given the code of any item N the product (multiplication) of all the digits of value should be computed (price).

Input format

– First line: A non-negative integer N.

  Output format  

– First line: A non-negative integer P.

  Example 1:  

– Input: 5244

– Output: 160

– Explanation: Product of the digits 5,2,4,4 is 160. Hence, the output is 160.

  Program in C  

#include <stdio.h>
int main() {
    unsigned long int n, prod = 1;
    scanf("%lu", &n);
    while (n != 0) {
        prod *= n % 10;
        n /= 10;
    }
    printf("%lu", prod);
    return 0;
}

Program in C++

#include <iostream>
int main() {
    unsigned long int n, prod = 1;
    std::cin >> n;
    if (n == 0) {
        std::cout << n;
        return 0;
    }
    while (n != 0) {
        prod *= n % 10;
        n /= 10;
    }
    std::cout << prod;
    return 0;
}

Program in Java

import java.util.Scanner;
class Main {
    public static void main (String args[]) {
        Scanner in = new Scanner(System.in);
        int N = in.nextInt();
        int prod = 1;
        in.close();
        if (N == 0) {
            System.out.print(N);
            System.exit(0);
        }
        while (N != 0) {
            prod *= N % 10;
            N /= 10;
        }
        System.out.print(prod);
    }
}
  

Program in Python

if __name__ == '__main__':
    import math
    print(math.prod([int(char) for char in input()]))

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