Walking Between Houses

There are nn houses in a row. They are numbered from 11 to nn in order from left to right. Initially you are in the house 11.

You have to perform kk moves to other house. In one move you go from your current house to some other house. You can't stay where you are (i.e., in each move the new house differs from the current house). If you go from the house xx to the house yy, the total distance you walked increases by |x−y||x−y| units of distance, where |a||a| is the absolute value of aa. It is possible to visit the same house multiple times (but you can't visit the same house in sequence).

Your goal is to walk exactly ss units of distance in total.

If it is impossible, print "NO". Otherwise print "YES" and any of the ways to do that. Remember that you should do exactly kk moves.

Input

The first line of the input contains three integers nn, kk, ss (2≤n≤1092≤n≤109, 1≤k≤2⋅1051≤k≤2⋅105, 1≤s≤10181≤s≤1018) — the number of houses, the number of moves and the total distance you want to walk.

Output

If you cannot perform kk moves with total walking distance equal to ss, print "NO".

Otherwise print "YES" on the first line and then print exactly kk integers hihi (1≤hi≤n1≤hi≤n) on the second line, where hihi is the house you visit on the ii-th move.

For each jj from 11 to k−1k−1 the following condition should be satisfied: hj≠hj+1hj≠hj+1. Also h1≠1h1≠1 should be satisfied.

Examples
input
10 2 15
output
YES
10 4
input
10 9 45
output
YES
10 1 10 1 2 1 2 1 6
input
10 9 81
output
YES
10 1 10 1 10 1 10 1 10
input
10 9 82
output
NO

题目意思:
现在有n个房子排成一列,编号为1~n,起初你在第1个房子里,现在你要进行k次移动,每次移动一都可以从一个房子i移动到另外一个其他的房子j
里(i != j),移动的距离为|j - i|。问你进过k次移动后,移动的总和可以刚好是s吗?若可以则输出YES并依次输出每次到达的房子的编号,
否则输出NO。 解题思路:
每次至少移动一个单位的距离,至多移动n-1个单位的距离,所以要想完成上述要求每次决策前后一定要满足条件: 
k <= s && k*(n-1) >= s

假设当前决策为移动x单位的距离,所以要满足下述条件: 
 ( k-1 <= s-x) && (x <= n-1)

得:max(x) = min( (s - k + 1) , (n-1) ) 
   因此我们的决策为:每次移动的大小为 s与k的差值 和 n-1 中的较小值,使得s和k尽快的相等。

 #include<cstdio>
#include<cstring>
#include<cstring>
#define ll long long int
#include<algorithm>
using namespace std;
ll n,s,k;
int main()
{
ll sum,i,pos,len;
scanf("%lld%lld%lld",&n,&k,&s);
if(k>s||k*(n-)<s)
{
printf("NO\n");
}
else
{
printf("YES\n");
pos=;///记录位置
while(k--)
{
len=min(s-k,n-);
s=s-len;
if(pos+len<=n)///向前移还是向后移的判断
{
pos=pos+len;
}
else
{
pos=pos-len;
}
printf("%d ",pos);
}
}
return ;
}

Walking Between Houses(贪心+思维)的更多相关文章

  1. CF D. Walking Between Houses (贪心)

    题意: 现在有n个房子排成一列,编号为1~n,起初你在第1个房子里,现在你要进行k次移动,每次移动一都可以从一个房子i移动到另外一个其他的房子j里(i != j),移动的距离为|j - i|.问你进过 ...

  2. Mike and distribution CodeForces - 798D (贪心+思维)

    题目链接 TAG: 这是我近期做过最棒的一道贪心思维题,不容易想到,想到就出乎意料. 题意:给定两个含有N个正整数的数组a和b,让你输出一个数字k ,要求k不大于n/2+1,并且输出k个整数,范围为1 ...

  3. Codeforces Round #546 (Div. 2) D 贪心 + 思维

    https://codeforces.com/contest/1136/problem/D 贪心 + 思维 题意 你面前有一个队列,加上你有n个人(n<=3e5),有m(m<=个交换法则, ...

  4. Codeforces Round #501 (Div. 3) 1015D Walking Between Houses

    D. Walking Between Houses time limit per test 2 seconds memory limit per test 256 megabytes input st ...

  5. 贪心/思维题 Codeforces Round #310 (Div. 2) C. Case of Matryoshkas

    题目传送门 /* 题意:套娃娃,可以套一个单独的娃娃,或者把最后面的娃娃取出,最后使得0-1-2-...-(n-1),问最少要几步 贪心/思维题:娃娃的状态:取出+套上(2),套上(1), 已套上(0 ...

  6. 贪心/思维题 UVA 11292 The Dragon of Loowater

    题目传送门 /* 题意:n个头,m个士兵,问能否砍掉n个头 贪心/思维题:两个数组升序排序,用最弱的士兵砍掉当前的头 */ #include <cstdio> #include <c ...

  7. T - Posterized(贪心思维)

    Description Professor Ibrahim has prepared the final homework for his algorithm’s class. He asked hi ...

  8. 【CF1015D】Walking Between Houses(构造,贪心)

    题意:从1开始走,最多走到n,走k步,总长度为n,不能停留在原地,不能走出1-n,问是否有一组方案,若有则输出 n<=1e9,k<=2e5,s<=1e18 思路:无解的情况分为两种: ...

  9. Codeforces Round #501 (Div. 3) D. Walking Between Houses (思维,构造)

    题意:一共有\(n\)个房子,你需要访问\(k\)次,每次访问的距离是\(|x-y|\),每次都不能停留,问是否能使访问的总距离为\(s\),若能,输出\(YES\)和每次访问的房屋,反正输出\(NO ...

随机推荐

  1. [ERROR] Can't find error-message file '/data/mysql/share/errmsg.sys'. Check error-message file location and 'lc-messages-dir' configuration directive.

    1. MySQL5.7.21启动时报错: [ERROR] Can't find error-message file '/data/mysql/3307/share/errmsg.sys'. Chec ...

  2. redis具体使用

    key 命名规则:不可包含空格和\n 创建方式: set  key value values Strings (Binary-safe strings) Lists Sets Sorted sets ...

  3. Js错误: obj.parents is not a function

    代码:      (1)  <div class="ViewMore" id="viewmore${i}" onclick="CLICK(thi ...

  4. [转]windows下多个python版本共存,pip使用

    windows下多个python版本共存,pip使用 2017年09月13日 17:21:30 阅读数:2574 一.同时装了Python3和Python2,怎么区分 了解python的人都知道pyt ...

  5. Hadoop生态新增列式存储系统Kudu

        Hadoop生态系统发展到现在,存储层主要由HDFS和HBase两个系统把持着,一直没有太大突破.在追求高吞吐的批处理场景下,我们选用HDFS,在追求低延迟,有随机读写需求的场景下,我们选用H ...

  6. MFC 程序退出方法

    基於對話框的: 1.PostQuitMessage(0);2.PostMessage(WM_QUIT,0,0);3.ExitProcess(0);注意使用时先释放分配的内存,以免造成内存泄露4.exi ...

  7. Oracle入门第四天(下)——约束

    一.概述 1.分类 表级约束主要分为以下几种: NOT NULL UNIQUE PRIMARY KEY FOREIGN KEY CHECK 2.注意事项 如果不指定约束名 ,Oracle server ...

  8. 【LG3229】[HNOI2013]旅行

    题面 洛谷 题解 勘误:新的休息点a需要满足的条件2为那一部分小于等于ans 代码 \(100pts\) #include <iostream> #include <cstdio&g ...

  9. SRM 563 500pts SpellCards

    SpellCards 题意: 有n张符卡排成一个队列,每张符卡有两个属性,等级li和伤害di. 两种操作: 1.把队首的符卡移动到队尾:2.使用队首的符卡,对敌人造成di点伤害,并丢弃队首的li张符卡 ...

  10. 快读板子fread

    struct ios { inline char read(){ <<|; static char buf[IN_LEN],*s,*t; ,IN_LEN,stdin)),s==t?-:*s ...