Koko loves to eat bananas. There are n piles of bananas, the ith pile has piles[i] bananas. The guards have gone and will come back in h hours.Koko can decide her bananas-per-hour eating speed of k. Each hour, she chooses some pile of bananas and eats k bananas from that pile. If the pile has less than k bananas, she eats all of them instead and will not eat any more bananas during this hour.Kok..
binarysearch
You are given an m x n integer matrix matrix with the following two properties:Each row is sorted in non-decreasing order.The first integer of each row is greater than the last integer of the previous row.Given an integer target, return true if target is in matrix or false otherwise.You must write a solution in O(log(m * n)) time complexity.1. ๊ฐ ํ์ ์ค๋ฆ์ฐจ์์ผ๋ก ์ ๋ ฌ๋์ด ์์2. ํ ํ์ ์ฒซ ๋ฒ์งธ ๊ฐ์ ์ด์ ํ์ ๋ง์ง๋ง ๊ฐ๋ณด๋ค ํผO(..
Given an array of integers nums which is sorted in ascending order, and an integer target, write a function to search target in nums. If target exists, then return its index. Otherwise, return -1.You must write an algorithm with O(log n) runtime complexity.๊ฐ๋จํ ๋ฐ์ด๋๋ฆฌ์์น(์ด์งํ์) ๋ฌธ์ !์ด์งํ์์ ์ ๋ ฌ๋ ๋ฐฐ์ด์์๋ง ์ฌ์ฉํ ์ ์๋ ํ์ ์๊ณ ๋ฆฌ์ฆ์ด๋ค. ์ด์งํ์์ ๋งค๋ฒ ํ์ ๋ฒ์๋ฅผ ์ ๋ฐ์ผ๋ก ์ค์ด๋ฏ๋ก ์๊ฐ๋ณต์ก๋๊ฐ O(n)์ด๋ค.๋ํ ๋ฌธ์ ์์ ๋ช
์์ ์ผ๋ก O(log n) ์๊ฐ ๋ณต์ก๋๋ก ํด๊ฒฐํ๋ผ๊ณ ์๊ตฌํ๊ณ ์๋๋ฐ..
๋ฌธ์ ์์ฝ๋์ด H ์ง์ (0~์์ ์ ์)H๋ณด๋ค ํฐ ๋๋ฌด๋ H ์์ ๋ถ๋ถ์ด ์๋ฆฌ๊ณ , ๋ฎ์ ๋๋ฌด๋ ์๋ฆฌ์ง ์๋๋ค.์ ์ด๋ M๋ฏธํฐ์ ๋๋ฌด๋ฅผ ์ง์ ๊ฐ์ ธ๊ฐ๊ธฐ ์ํ ์ ๋จ๊ธฐ ๋์ด์ ์ต๋๊ฐ๋๋ฌด์ ์ N (1 ≤ N ≤ 1,000,000)๊ฐ์ ธ๊ฐ์ผ ํ๋ ๊ธธ์ด M (1 ≤ M ≤ 2,000,000,000)-> input๊ฐ์ด ๋งค์ฐ ํฌ๋ค. ์๊ฐ ๋ณต์ก๋๋ฅผ ์ ๊ฒฝ ์จ์ผ ํ๋ค๋ ํํธ์ด๋ค. ์ฒซ๋ฒ์งธ ์๋: ๋ธ๋ฃจํธ ํฌ์ค(์์ ํ์) - ์๊ฐ ์ด๊ณผimport sysinput = sys.stdin.readlineN, M = map(int, input().split())trees = list(map(int, input().split()))trees.sort(reverse=True)h = trees[0]-1for i in range(h, 0, -1)..