LeetCode Weekly Contest 19是LeetCode举办的第二十四场正式周赛,共4道题目,比赛时长1.5小时。
比赛链接:https://leetcode.com/contest/leetcode-weekly-contest-19/
题解列表:
LeetCode 513. Find Left Most Element
LeetCode Weekly Contest 19是LeetCode举办的第二十四场正式周赛,共4道题目,比赛时长1.5小时。
比赛链接:https://leetcode.com/contest/leetcode-weekly-contest-19/
题解列表:
LeetCode 513. Find Left Most Element
Given an array nums
, we call (i, j)
an important reverse pair if i < j
and nums[i] > 2*nums[j]
.
You need to return the number of important reverse pairs in the ...
LeetCode 515. Find Largest Element in Each Row
You need to find the largest value in each row of a binary tree.
Example:
Input: 1 / \ 3 2 / \ \ 5 3 9 Output: [1, 3, 9]
给定二叉树,返回其每一行的最大元素。
二叉树的层次遍历 ...
LeetCode 513. Find Left Most Element
Given a binary tree, find the leftmost value in the last row of the tree.
Example 1:
Input: 2 / \ 1 3 Output: 1
Example 2:
Input: 1 / \ 2 3 / / \ 4 5 6 / 7 ...
Given an integer, return its base 7 string representation.
Example 1:
Input: 100 Output: "202"
Example 2:
Input: -7 Output: "-10"
Note: The input will be in range of [-1e7, 1e7].
给定一个整数,返回其7进制的字符串 ...