Suppose we have a list of numbers called nums and an integer k, we have to check whether we can remove exactly one element from the list to make the average equal to exactly k. Now we have to keep in mind that, there are some constraints −2 ≤ n ... Read More

Suppose we have a number a, we have to find n, such that factorial of n (n!) is same as a. As we know, the factorial n = n * (n - 1) * (n - 2) * ... * 1. If there is no such integer n then return ... Read More

Suppose we have a list of intervals, where each interval is like [start, end] this is representing start and end times of an intervals (inclusive), We have to find their intersection, i.e. the interval that lies within all of the given intervals.So, if the input is like [[10, 110], [20, ... Read More

Suppose we have two strings s and t, we have to find two strings interleaved, starting with first string s. If there are leftover characters in a string they will be added to the end.So, if the input is like s = "abcd", t = "pqrstu", then the output will ... Read More

Suppose we have a number n, we have to find the base 3 equivalent of this number as string.So, if the input is like 17, then the output will be 122.To solve this, we will follow these steps −if n

Suppose we have a list of numbers nums, we have to put all the zeros to the end of the list by updating the list in-place. And the relative ordering of other elements should not be changed. We have to try to solve this in O(1) additional space.So, if the ... Read More

Suppose we have a string s and two integers i and j (i < j). Now suppose p is an infinite string of s repeating forever. We have to find the substring of p from indexes [i, j).So, if the input is like s = "programmer", i = 4, j ... Read More

Suppose we have a list of numbers called nums, we have to find the most frequently present element and get the number of occurrences of that element.So, if the input is like [1, 5, 8, 5, 6, 3, 2, 45, 7, 5, 8, 7, 1, 4, 6, 8, 9, 10], ... Read More

Suppose we have a number n, we have to find the maximum number we can make by inserting 5 anywhere in the number.So, if the input is like n = 826, then the output will be 8526.To solve this, we will follow these steps −temp := n as a stringans ... Read More

Suppose we have a non-negative number n, we have to find a number r such that r * r = n and we have to round down to the nearest integer. We have to solve this problem without using the builtin square-root function.So, if the input is like 1025, then ... Read More