#C. [USACO09MAR] Look Up S

    Type: RemoteJudge 1000ms 500MiB

[USACO09MAR] Look Up S

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题目描述

Farmer John's N (1 <= N <= 100,000) cows, conveniently numbered 1..N, are once again standing in a row. Cow i has height H_i (1 <= H_i <= 1,000,000).

Each cow is looking to her left toward those with higher index numbers. We say that cow i 'looks up' to cow j if i < j and H_i < H_j. For each cow i, FJ would like to know the index of the first cow in line looked up to by cow i.

Note: about 50% of the test data will have N <= 1,000.

约翰的 N(1N105)N(1\le N\le10^5) 头奶牛站成一排,奶牛 ii 的身高是 Hi(1Hi106)H_i(1\le H_i\le10^6)。现在,每只奶牛都在向右看齐。对于奶牛 ii,如果奶牛 jj 满足 i<ji<jHi<HjH_i<H_j,我们可以说奶牛 ii 可以仰望奶牛 jj。 求出每只奶牛离她最近的仰望对象。

Input

输入格式

  1. * Line 1: A single integer: N

* Lines 2..N+1: Line i+1 contains the single integer: H_i

11 行输入 NN,之后每行输入一个身高 HiH_i

输出格式

* Lines 1..N: Line i contains a single integer representing the smallest index of a cow up to which cow i looks. If no such cow exists, print 0.

NN 行,按顺序每行输出一只奶牛的最近仰望对象,如果没有仰望对象,输出 00

6 
3 
2 
6 
1 
1 
2 

3 
3 
0 
6 
6 
0 

提示

FJ has six cows of heights 3, 2, 6, 1, 1, and 2.

Cows 1 and 2 both look up to cow 3; cows 4 and 5 both look up to cow 6; and cows 3 and 6 do not look up to any cow.

【输入说明】66 头奶牛的身高分别为 3,2,6,1,1,2。

【输出说明】奶牛 #1,#2 仰望奶牛 #3,奶牛 #4,#5 仰望奶牛 #6,奶牛 #3 和 #6 没有仰望对象。

【数据规模】

对于 20%20\% 的数据:1N101\le N\le10

对于 50%50\% 的数据:1N1031\le N\le10^3

对于 100%100\% 的数据:1N105,1Hi1061\le N\le10^5,1\le H_i\le10^6

初二竞赛组作业——单调栈

Not Claimed
Status
Done
Problem
7
Open Since
2024-9-4 9:00
Deadline
2024-9-25 23:59
Extension
24 hour(s)