#P2947. [USACO09MAR] Look Up S
[USACO09MAR] Look Up S
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 头奶牛站成一排,奶牛 的身高是 。现在,每只奶牛都在向右看齐。对于奶牛 ,如果奶牛 满足 且 ,我们可以说奶牛 可以仰望奶牛 。 求出每只奶牛离她最近的仰望对象。
Input
输入格式
- * Line 1: A single integer: N
* Lines 2..N+1: Line i+1 contains the single integer: H_i
第 行输入 ,之后每行输入一个身高 。
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.
共 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 。
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】 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 的数据:;
对于 的数据:;
对于 的数据:。