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Description https://leetcode.com/problems/replace-all-digits-with-characters/ You are given a 0-indexed string s that has lowercase English letters in its even indices and digits in its odd indices. There is a function shift(c,…
Description https://leetcode.com/problems/number-of-students-doing-homework-at-a-given-time/ Given two integer arrays startTime and endTime and given an integer queryTime. The ith student started doing their homework at the time startTime[i] and finished it at…
Description https://leetcode.com/problems/minimum-distance-to-the-target-element/ Given an integer array nums (0-indexed) and two integers target and start, find an index i such that nums[i] == target and abs(i – start) is minimized. Note that abs(x) is the absolute…
Description https://leetcode.com/problems/design-an-ordered-stream/ There is a stream of n (idKey, value) pairs arriving in an arbitrary order, where idKey is an integer between 1 and n and value is a string. No two pairs…
Description https://leetcode.com/problems/maximum-depth-of-n-ary-tree/ Given a n-ary tree, find its maximum depth. The maximum depth is the number of nodes along the…
Description https://leetcode.com/problems/water-bottles/ Given numBottles full water bottles, you can exchange numExchange empty water bottles for one full water bottle. The operation of drinking a…
Description https://leetcode.com/problems/base-7/ Given an integer num, return a string of its base 7 representation. Example 1: Input: num = 100 Output: “202” Example 2:…
Description https://leetcode.com/problems/sum-of-digits-in-base-k/ Given an integer n (in base 10) and a base k, return the sum of the digits of n after converting n from base 10 to base k. After converting, each digit should…
Description https://leetcode.com/problems/count-odd-numbers-in-an-interval-range/ Given two non-negative integers low and high. Return the count of odd numbers between low and high (inclusive). Example 1: Input: low = 3, high =…
Description https://leetcode.com/problems/detect-capital/ We define the usage of capitals in a word to be right when one of the following cases…