Mallow Interview Questions (2026)

Recently Mallow Technologies visited our campus for recruiting Web developer, IOS and Android app developers. No. of Rounds: 3

Round 1 It was online coding round at Hackerrank which consists of 3 programs and 3Hrs time. Program 1: Given an array with n distinct integers d[0], d[1], ... d[n - 1] and a threshold t, how many triplets (i, j, k) exist such that d[i] < d[j] < d[k], and d[i] + d[j] + d[k] <= t.

Constraint: 0 < n ? 30,000 0 <= d[i] < 10,000,000 0 < t < 300,000,000 (Note that the input is not always sorted.)

Sample Input: t => Threshold, N=> No. of values in array then N number follows denotes values.. 8 5 1 2 3 4 6 Sample Output: 3 Explanation: {1, 2, 3} => 1 + 2 + 3 <= 8 {1, 2, 4} => 1 + 2 + 4 <= 8 {1, 3, 4} => 1 + 3 + 4 <= 8 Program 2: Louise and Richard decided to stay in on Friday night to play a game. They have a counter set to N. Louise gets the first turn and they alternate turns thereafter. In the game, they perform one of the following two operations. If N is not a power of 2, they reduce the counter by the largest power of 2 less than N.If N is a power of 2, they reduce the counter by half of N. The resultant value is the new N which is by the next player for her or his turn. The game ends when the counter reduces to 1, i.e. N = 1. The player who makes the last valid move (i.e. who gets to 1) wins. Given N, your task is to find the winner of the game.

Note: If the counter is set to 1 at the start, Richard wins, because its Louise's turn and she cannot make a move.

Input Format: The first line contains an integer T, the number of test cases. T lines follow. Each line contains N, the initial number set in the counter.

Output Format: For each test case, print the winner's name in a new line. So if Louise wins the game, print "Louise". Otherwise, print "Richard" (minus the quotation marks.)

Constraints: 1 <= T <= 10 1 <= N <= 264 - 1 Sample Input: 1 6 Sample Output Richard Explanation 6 is not a power of 2, so Louise subtracts the largest power of 2 less than 6, i.e. 4, and the counter goes down to 2. 2 is a power of 2, so Richard reduces the counter by half of 2, i.e. 1, and the counter goes down to 1. Since N = 1, Louise has no more moves, so Richard wins the game Program 3: You are given a 14 digit date time value as input (D), whose format is YYYYMMDDHHMISS. YYYY - represents year (Examples: 1947, 2000, 2015) MM - represents month (Examples: 12, 01, 03) DD - represents day (Examples: 31, 01, 15) HH - represents hour (Examples: 00, 01, 12, 23) MI - represents minute (Examples: 59, 50, 00, 05) SS - represents second (Examples: 59, 50, 00 06) You will also be given another integer, called the offset value (O), in seconds. You are required to print a 14 digit output date in the format YYYYMMDDHHMISS which is adjusted for the offset from the input date. Proper conditions to check for leap year: 1. https://en.wikipedia.org/wiki/Leap_year#Algorithm 2. https://astro101.wwu.edu/index.html Special condition for the year 1752: 1. https://en.wikipedia.org/wiki/1752 Please note that, the conditions for a leap year is different for Julian (Used until September 2, 1752) and Gregorian calendars (Used from September 14, 1752).

Constraints: 10010101000000 < D < 39991231235959 -94638758399 < O < 94638758399 Sample Input: 19470815000008 17 Sample Output: 19470815000025 Explanation: The input 19470815000008 represents August 15, 1947 00:00:08. If you adjust the input date with 17 seconds, you will get the date August 15, 1947 00:0025. Hence the output is 19470815000025.

Round 2 It was also conducted online at hackerrank 2 Hrs time which consists of following: 1. Program with errors (Both logic & syntax) – We need to debug it and pass all test cases. 2. There was two database questions for which we need to write query and pass the test cases. Technical and

HR Questions related to the problems given in Round 1 and Round 2 how we solved. Someconcept in data structures and basic CS questions. Thanks GeeksforGeeks for providing this wonderful resources.