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D. Apple Tree Traversing There is an apple tree with $n$ nodes, initially with one apple at each node. You have a paper with you, initially with nothi 阅读全文
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G - Specified Range Sums Problem Statement You are given an integer $N$ and length-$M$ integer sequences $L=(L_1,L_2,\dots,L_M)$, $R=(R_1,R_2,\dots,R_ 阅读全文
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F - Path to Integer Problem Statement There is an $N\times N$ grid. Let cell $(i,j)$ denote the cell in the $i$-th row from the top and $j$-th column 阅读全文
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Path Existence Queries in a Graph II You are given an integer n representing the number of nodes in a graph, labeled from 0 to n - 1. You are also giv 阅读全文
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Find X Value of Array II You are given an array of positive integers nums and a positive integer k. You are also given a 2D array queries, where queri 阅读全文
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Maximum Product of Subsequences With an Alternating Sum Equal to K You are given an integer array nums and two integers, k and limit. Your task is to 阅读全文