Codeforces Round #813 (Div. 2)C. Sort Zero 匀速小子 Kaggle Master/数据挖掘、机器学习爱好者 题意就是给你个数组,把数组中其中一个数字变成0,看你操作多少次能整出一个非递减序列。 这里的其中一个数字,就比如例4: 你把2变成0,必须把所有的2都变成0,所以,一次操作后,就变成了0 4 1 0 第一次做这...
∗∗An array aa is a subarray of an array bb if aa can be obtained from bb by the deletion of several (possibly, zero or all) elements from the beginning and several (possibly, zero or all) elements from the end. Input Each test consists of several test cases. The first line ...
Yes, I know segment trees but I think I was unable to clearly state my problem so I've attached above image. So what I'm asking is suppose we have a query with l = 2 and r = 5 (both including and array starts from zero) with k = 12. what the query function does is it sear...
{ int zero = -1; int two = nums.length; for (int i = 0; i < two; ) { if (nums[i] == 1) { i++; } else if (nums[i] == 0) { nums[i++] = nums[zero + 1]; nums[++zero] = 0; } else { assert(nums[i] == 2); nums[i] = nums[two - 1]; nums[--two]...
Of course, if person a has zero dollars, he can not swap places with person b. Residents of Berland are strange people. In particular, they get upset when there is someone with a strictly smaller sum of money in the line in front of them. Can you help the residents of Berland form ...
代码: 1#include<iostream>2#include<cstdio>3#include<cstring>4#include<algorithm>5#include<cmath>6usingnamespacestd;7constintmaxn=1e5+10;8inta[maxn];9intmain(){10intn;11scanf("%d",&n);12for(inti=0;i<n;i++)13scanf("%d",&a[i]);14for(inti=1;i<n;i++){15if(a[i]<a[i...
ok thanks, i get your idea, what if graph is given like this 1-2-3-4-5 and no vertex is having zero-in-degree. ? or this algorithm works for directed graph (1->2->3->4->5) . ? → Reply P_Nyagolov 10 years ago, # ^ | 0 You can't do a topological sort in an...