we can measure the amount of implementation excluding the library part, but that's the only change. For example, we won't use "paste a segtree, then do more implementation after that" kind of problems. We may use "think
题目多叉树G拥有N个顶点。顶点编号从1到N,一次累加。多叉树的第i条树枝由顶点ai和顶点bi连接在一起。现在考虑要在多叉树G的树枝上涂上颜色。这个时候对颜色...
AtCoder Library Practice Contest https://atcoder.jp/contests/practice2 A - Disjoint Set Union Union Find B - Fenwick Tree Fenwick Tree, or Binary Indexed Tree C - Floor Sum D - Maxflow E - MinCostFlow F - Convolution G - SCC
#include <bits/stdc++.h> using namespace std; typedef long long ll; struct Segment_Tree { int n; vector<int> sum, tag; Segment_Tree (int n) { this->n = n; tag.assign(n << 4, 0); sum.assign(n << 4, 0); } void update (int x, int l, int r, int ql, int qr, int...
How many choices of(l,r)(l,r)are there where Takahashi can realize his plan? Constraints 2≤N≤3000002≤N≤300000 1 ≤ i ≤ (1≤i≤N)(1≤i≤N) All values in input are integers. Input Input is given from Standard Input in the following format: ...
Choose one or two of his candies and eat them (of course, they disappear). Then, write on the blackboard the total tastiness of the candies he has just chosen.Snuke wants to minimize X−YX−Y, where XX and YY are the largest and smallest values written on the blackboard, ...
#pragma GCC optimize(3) #include <bits/stdc++.h> using namespace std; typedef long long ll; const ll inf = 1e17; const int maxn = 1e3 + 1; ll maxv[maxn << 2][maxn << 2]; struct Segment_Tree { int n; void build_y (int u, int rt, int l, int r) { maxv[rt][u...