k : k - 1), f = 1; k = k / 2 * 2; cout << f + (n + k - 1) / k << '\n'; } B. Array Recoloring 贪心 思路:尽可能选择最大的,同时也要让剩下的最后一个最大。当k比较大时,选完k个之后,剩下的没选的并且在pos1和posk之间的,都有办法使其成为最后一个被选的,因此答案贪...
#include <bits/stdc++.h> const int N = 1000100; int n, a[N], ans; class RollArray { public: void set(int id, int x) { if (x < mp[id]) mp[id] = x, ids.push_back(id); } void roll_back() { for (auto& id : ids) mp[id] = n + 1; ids.clear(); } int mp[N...
B. Array Recoloring C. Two Colors D. Equalization E. XOR Matrix F. Beautiful Sequence Returns Educational Codeforces Round 175 (Rated for Div. 2) A. FizzBuzz Remixed B. Robot Program C. Limited Repainting D. Tree Jumps E. Game with Binary String F. Friends and Pizza Educational Codeforces...
1159B-ExpansionCoefficientOfTheArray.cpp 1161B-ChladniFigure.cpp 1162A-ZoningRestrictionsAgain.cpp 1162B-DoubleMatrix.cpp 1163A-EatingSoup.cpp 1163B1-CatPartyEasyEdition.cpp 1163B2-CatPartyHardEdition.cpp 1165A-Remainder.cpp 1165B-PolycarpTraining.cpp 1165C-GoodString.cpp 1165D-AlmostAllDivisors.cpp...
This array is also 0-indexed. Since we need m elements for each subarray, division[i] is the value of the (i + 1) * m elements in ind. So, division[i] = ind[(i+1)*m - 1] (-1 because ind is 0-indexed). → Reply » » » Ahmad7_7 6 years ago, #...
1042C - Array Product - Accepted Codeforces Round #509 - 2/6 1041A - Heist - Accepted 1041B - Buying a TV Set - Accepted 1041C - Coffee Break - Accepted Educational Codeforces Round 49 - 1/7 1036A - Function Height - Accepted 1036B - Diagonal Walking v.2 - Accepted Codeforces Round...
Given an array wiwi, we consider points (i,wi)(i,wi) on the plane and do queries "add xx to a single point (i,wi)(i,wi)", "calculate the sum on [0,x)×[0,y)[0,x)×[0,y)" and "given cc and xx, find the greatest yy so that the sum on [0,x)×[0,y)[0,x)×...
You have to recolor some lamps in this garland (recoloring a lamp means changing its initial color to another) in such a way that the obtained garland is nice. A garland is called nice if any two lamps of the same color have distance divisible by three between them. I.e. if the obtai...
CF1575L Longest Array Deconstruction 难度:21002100 设aa 是一个序列,定义 fafa 表示满足 ai=iai=i 的位置 ii 的数目。 给你一个长度为 nn 的序列 aa,可以删除若干个数字,最大化 fafa。 1≤n,ai≤2×1051≤n,ai≤2×105 solutionsolution solution1:solution1: 我们考虑朴素的 n2n2 dp 怎么做: 咕...
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