#include<cstdio>#include<cstring>#include<algorithm>#include<iostream>#include<cmath>#include<stack>#include<queue>using namespacestd;typedeflonglongll;constintmaxn =500010;intn,k,cnt =0;intinf;intans;inta[maxn]
For each test case, print a single number on a separate line — the minimum number of operations to perform on the sequence to make it strictly increasing. If a strictly increasing sequence cannot be obtained, print "-1". Input The first line of the input contains an integer tt (1≤t≤...
CodeForces - 1437E Make It Increasing 线段树动态开点 https://codeforces.com/problemset/problem/1437/E 这是有限制的最长上升子序列 数字之间必须满足list[i] - list[j] >= i - j 处理的时候就是让list[i] - i,这样就得到了最长不下降子序列,非正数就赋成INF忽略不计,就可以算了,见到大佬门用upper...
Make It Increasing https://codeforces.com/contest/1437/problem/E 题意:给定一个长度为n的序列a。当元素i不属于集合b时,序列中的ai可以更改为任意值。问:让序列变成严格递增的序列所需要的最小操作次数。 思路: 1、首先,当a[i]、a[j]值固定且 i − j > a [ i ] − a [ j ] ( i > j...
1882A-IncreasingSequence.cpp 1882B-SetsAndUnion.cpp 1883A-Morning.cpp 1883B-Chemistry.cpp 1883C-Raspberries.cpp 1884A-SimpleDesign.cpp 1884B-HauntedHouse.cpp 1886A-SumOfThree.cpp 1886B-FearOfTheDark.cpp 1890A-DoremysPaint3.cpp 1890B-QingshanLovesStrings.cpp 1891A-SortingWithTwos.cpp 1891B-De...
JUst Posting it for revision purpose. First solution, n adds and 1 mod First, let's make ai = x * n + i (for some x). Then, let's mod the whole array with n (making ai = i). If the "add update" changed one index, we can just add i + n - ...
Copy 输入数据 2 2 5 3 Copy 输出数据 2 1 Copy 输入数据 3 100 10 10 Copy 输出数据 3 81 Copy Note In the first example, Masha can make a triangle from the sticks without increasing the length of any of them. In the second example, Masha can't make a triangle of positive area from...
CodeForces Algorithms. Contribute to m-aprameya/CodeForces development by creating an account on GitHub.
Being an experienced internet surfer, he skipped the first two links and clicked on "topcoder.com". It was a fateful day in Bob's life. Well, at least it would be if he could figure out the website. So Bob promptly gave up, but not before discovering another website: "codeforces....
Codeforces Educational Codeforces Round 97 (Rated for Div. 2) E. Make It Increasing 题目链接 题解 在指定一些位置上的数不能更改的情况下需要将一个序列变为严格但调递增序列的所需要最少的修改次数 题解 首先判断掉不能修改的情况 不能修改的mm个位置将序列划分为m+1m+1个部分,显然这m+1m+1个部分...