For example, if we have pairs(1,5),(2,3), and(4,4), the maximum pair sum would bemax(1+5, 2+3, 4+4) = max(6, 5, 8) = 8. Given an arraynumsof even lengthn, pair up the elements ofnumsinton / 2pairs such that: Eac
0030-substring-with-concatenation-of-all-words 0032-longest-valid-parentheses 0034-find-first-and-last-position-of-element-in-sorted-array 0035-search-insert-position 0037-sudoku-solver 0038-count-and-say 0039-combination-sum 0040-combination-sum-ii 0041-first-missing-positive 0042-t...
LeetCode 646. Maximum Length of Pair Chain You are given n pairs of numbers. In every pair, the first number is always smaller than the second number. Now, we define a pair (c, d) can follow another pair (a, b) if and only if b < c. Chain of pairs can be formed in this fa...
Suppose LeetCode will start its IPO soon. In order to sell a good price of its shares to Venture Capital, LeetCode would like to work on some projects to increase its capital before the IPO. Since it has limited resources, it can only finish at mostkdistinct projects before the IPO. He...
Output: "leetcode" Explanation: First, we reverse the substring "oc", then "etco", and finally, the whole string. 1. 2. 3. Example 4: Input: s = "a(bcdefghijkl(mno)p)q" Output: "apmnolkjihgfedcbq" 1. 2. Constraints:
1. Add to Array-Form of Integer 解题思路:模拟下高精度加法即可。 实现代码: 2. Satisfiability of Equality Equations 解题思路:由于相等关系具有传递性,因此我们可以利用并查集维护相等关系的集合。...Leetcode Weekly Contest 109 933. Number of Recent Calls https://leetcode.com/problems/number-of-...
The score of a pair (i < j) of sightseeing spots is(A[i] + A[j] + i - j): the sum of the values of the sightseeing spots, minus the distance between them. Return the maximum score of a pair of sightseeing spots. Example 1: ...
https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses/discuss/382367/Simple-Stack-and-Queue-Solution https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses/discuss/383670/JavaC%2B%2BPython-Tenet-O(N)-Solution ...
Output: "leetcode" Example 4: Input: s = "a(bcdefghijkl(mno)p)q" Output: "apmnolkjihgfedcbq" Constraints: 0 <= s.length <= 2000 sonly contains lower case English characters and parentheses. It's guaranteed that all parentheses are balanced. ...
【leetcode】1021. Best Sightseeing Pair 题目如下: Given an arrayAof positive integers,A[i]represents the value of thei-th sightseeing spot, and two sightseeing spotsiandjhave distancej - ibetween them. Thescoreof a pair (i < j) of sightseeing spots is (A[i] + A[j] + i - j): ...