http://codeforces.com/contest/451/problem/B 【算法】 模拟 在序列中找到一段单调递增的子序列,将这段序列反转,然后判断序列是否变得单调递增,即可 【代码】 #include<bits/stdc++.h>usingnamespacestd;constintMAXN = 1e5 +10;inti,n,l,r;boolflag;inta[MAXN];intmain() { scanf("%d",&n);for(i ...
Unfortunately, the size ofais too small. You want a bigger array! Your friends agree to give you a bigger array, but only if you are able to answer the following question correctly: is it possible to sort the arraya(in increasing order) by reversingexactly onesegment ofa? See definitions ...
解析:从前往后找第一个不符合位置的,从后往前找,找到第一个不符合的位置,然后就翻转这一段,判断反转后的结果是否为升序序列 #include <bits/stdc++.h> using namespace std; const int maxn = 1e5+1000; int a[maxn]; int main(void) { int n; cin>>n; for(int i=0;i<n;i++) scanf("%d",...
【模拟】【codeforces】451B Sort the Array http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=52107 给出一个数列,问截取哪一部分连续子列进行翻转可以使整个数列升序排列, 如果有这样的字串输出yes和截取位置,没有输出no 就是先记录原始位置进行排序,之后一旦发现一个元素排序后更改了位置那它就被...
【Codeforces 258B】 Sort the Array 【题目链接】 http://codeforces.com/contest/451/problem/B 【算法】 模拟 在序列中找到一段单调递增的子序列,将这段序列反转,然后判断序列是否变得单调递增,即可 【代码】 #include<bits/stdc++.h>usingnamespacestd;constintMAXN = 1e5 +10;inti,n,l,r;boolflag;...
Sort Array By Parity 116 0 0 LightOf | Perl Codeforces 1312E. Array Shrinking(区间DP 栈) Codeforces 1312E. Array Shrinking(区间DP 栈) 116 0 0 jasmine_qiqi 4.1、Array数组常用的方法(map、push、sort、filter、join、split) 4.1、Array数组常用的方法(map、push、sort、filter、join、...
array and reverse the order, for example: if N = 5 and K = 3 and the array is [4 5 1 2 3], in one move you can make the array [1 5 4 2 3] or [4 2 1 5 3] or [4 5 3 2 1]. how many minimum number of moves is required to make the array sorted in ascending ...
Find i, such that ai is the smallest element of array a among index 1 to n. Then if you reverse a1 to ai, you have the smallest element of a at a1. Again, find the smallest among a2 to an and reverse a2 to ai to bring the 2nd smallest to the 2nd position... and so on.....
451B. Sort the Array 链接: https://codeforces.com/problemset/problem/451/B 题意 给你一个长度为n的数组,判断是否可以通过翻转某一段的方式使变化后的数组是从小到大排序的递增数组。(如果可以输出yes,区间左值和区间右值(从1开始),不行输出no) 1 ≤ n ≤ 105 a[1], a[2......
For each test case, output a single integer — the minimum number of operations described above to sort the array pp in ascending order. 输入数据 1 4 5 1 5 4 2 3 3 1 2 3 4 2 1 4 3 6 5 2 4 1 6 3 Copy 输出数据 1 2 0 1 3 Copy Note In the first example, you can ...