Code : UEMS 2412
General Instructions:
● Strictly avoid any form of malpractice, as it will result in immediate
disqualification.
● Electronic devices, including cell phones, smart watches, and calculators, are
not permitted during the exam.
● Please refrain from writing or marking anything on the question paper.
● The question paper consists of 2 sections with a total of 20 questions.
○ Section A includes 10 programming questions to be completed within
40 minutes.
○ Section B includes 10 aptitude questions to be completed within 35
minutes.
● Each question is worth one mark.
● There are no negative marks for incorrect answers.
● The questions are free from errors in logic, spelling, syntax, or meaning.
● Please write your answers on the provided Answer Sheet and use the Rough
Sheets for any calculations.
● Ensure that your answer sheet is clearly marked and that all answers are
written legibly to avoid any discrepancies during marking.
Section A - Programming
10 questions | 40 minutes
1. What is the 'zoho' method's output with 's = "D4V1D"'?
public static String zoho(String s) {
char[] c = s.toCharArray();
for(int i = 1; i<c.length; i = i + 2)
c[i] = (char) (c[i - 1] + c[i] - '0');
return String.valueOf(c);
}
2. What is the 'zoho' method's output with 's = "work", t = "HappyWorkHappyLife"' as
input?
Page No : 1
Code : UEMS 2412
public boolean zoho(String s, String t) {
return help(s , 0 , t, 0);
}
private boolean help(String s , int i , String t, int j){
if(i == s.length())
return true;
if(i < s.length() && j == t.length())
return false;
if(s.charAt(i) == t.charAt(j))
return help(s , i+1, t , j+1);
else
return help(s , i, t, j+1);
}
3. What is the output of the below method when given the input s1 = ["Race",
"CarDriver"] & s2 = ["RaceCar", "Driver"]?
public boolean zoho(String[] s1, String[] s2) {
int i = 0, j = 0;
int m = 0, n = 0;
while (i < s1.length && j < s2.length) {
if (s1[i].charAt(m++) != s2[j].charAt(n++))
return false;
if (m == s1[i].length()) {
i++;
m = 0;
}
if (n == s2[j].length()) {
j++;
n = 0;
}
}
return i == s1.length && j == s2.length;
}
4. What does the 'zoho' method return when given the input 'n = 6'?
public bool zoho(int n) {
if ( n == 1)
return false;
Page No : 2
Code : UEMS 2412
else
return !zoho(n -1);
}
5. What is the 'zoho' method's output with 'nums1 = [2,3,4], nums2 = [0,1,2,3,4,5]' as
input?
public int[] zoho(int[] nums1, int[] nums2) {
int[] ans = new int[nums1.length];
for(int i = 0; i < nums1.length; i++) {
int temp = -1, j = nums2.length - 1;
while(j >= 0 && nums2[j] != nums1[i]) {
if(nums2[j] > nums1[i])
temp = nums2[j];
j--;
}
ans[i] = temp;
}
return ans;
}
6. Given `num = 5`, what is the output of the following code?
public int[] zoho(int num) {
int[] f = new int[num];
for (int i=1; i<num; i++)
f[i] = f[i >> 1] + (i & 1);
return f;
}
7. What does the 'zoho' method return when given the input 'n = 5'?
public int zoho(int n) {
if (n == 0)
return 0;
if (n == 1)
Page No : 3
Code : UEMS 2412
return 1;
int[] nums = new int[n + 1];
nums[0] = 0;
nums[1] = 1;
int ans = 1;
for (int i = 1; (2 * i + 1) <= n; i++) {
nums[2 * i] = nums[i];
nums[2 * i + 1] = nums[i] + nums[i + 1];
ans = Math.max(ans, nums[2 * i + 1]);
}
return ans;
}
8. What does this function return when provided A = [1,3,5,6,8] and target = 7?
class Solution {
public int zoho(int[] A, int target) {
int x = 0, y = A.length-1;
while(x <= y){
int z = (x+y)/2;
if(A[z] == target)
return z;
else if(A[z] > target)
y = z-1;
else
x = z+1;
}
return x;
}
}
9. What does the 'zoho' method return when given the input 'N = 5'?
public int zoho(int N) {
if (N <= 1)
return N;
HashMap<Integer, Integer> map = new HashMap<Integer, Integer>();
map.put(0, 0);
map.put(1, 1);
return help(N, map);
Page No : 4
Code : UEMS 2412
}
private int help(int N, HashMap<Integer, Integer> map) {
if (!map.containsKey(N)) {
int i = help(N - 1, map) + help(N - 2, map);
map.put(N, i);
}
return map.get(N);
}
10. What is the 'zoho' method's output with 's = "l|*e*et|c**o|*de|"'?
public int zoho(String s) {
int ans = 0, j = 0;
for (int i = 0; i < s.length(); ++i) {
if (s.charAt(i) == '*' && j % 2 == 0)
ans++;
if (s.charAt(i) == '|')
j++;
}
return ans;
}
Page No : 5
Code : UEMS 2412
Section B - Aptitude
10 questions | 35 minutes
1. A rectangular garden has a length that is 4 meters more than its width. If the area
of the garden is 140 square meters, what are the dimensions of the garden?
2. If you flip a fair coin 4 times, what is the probability of getting at least 3 heads?
3. There are three pipes, named A, B, and C, that can fill a tank together in 6 hours.
They start filling the tank together, but after 2 hours, pipe C is turned off. The
remaining two pipes, A and B, then take 7 more hours to fill the tank. How long
would it take for pipe C to fill the tank by itself?
4. A box contains 5 red balls, 3 green balls, and 2 blue balls. If one ball is drawn
randomly, what is the probability that it is not green?
5. A shopkeeper sold an item (A) at a 20% loss, which originally cost ₹4500. He then
used the money from this sale to buy another item (B), which he sold for a 30%
profit. What is the total profit or loss from both these transactions?
6. How long does a bus stop every hour if its speed is 54 km/h without stops, and 45
km/h with stops?
7. How many years younger is C compared to A, given that the combined age of A
and B is 12 years more than the combined age of B and C?
8. In a class, 25% of the students scored an A grade, 40% scored a B grade, and the
rest scored a C grade. If there are 60 students in the class, how many students
scored a C grade?
9. The sum of three consecutive even numbers is 96. What are these numbers?
10. What is the smaller number when two numbers with an initial ratio of 3:5 change
to a ratio of 12:23 after subtracting 9 from each?
Page No : 6
