2025: [USACO 2024 February Contest Bronze] Problem 3. Maximizing Productivity

文件提交:无需freopen 内存限制:256 MB 时间限制:2.000 S
评测方式:普通裁判 命题人:
提交:2 解决:1

题目描述

Farmer John has N (1N2105) farms, numbered from 1 to N. It is known that FJ closes farm i at time ci. Bessie wakes up at time S, and wants to maximize the productivity of her day by visiting as many farms as possible before they close. She plans to visit farm i on time ti+S. Bessie must arrive at a farm strictly before Farmer John closes it to actually visit it.

Bessie has Q (1Q2105) queries. For each query, she gives you two integers S and V. For each query, output whether Bessie can visit at least V farms if she wakes up at time S.

输入

The first line consists of N and Q.

The second line consists of c1,c2,c3cN (1ci106).

The third line consists of t1,t2,t3tN (1ti106).

The next Q lines each consist of two integers V (1VN) and S (1S106).

输出

For each of the Q queries, output YES or NO on a new line.

样例输入

5 5
3 5 7 9 12
4 2 3 3 8
1 5
1 6
3 3
4 2
5 1

样例输出

YES
NO
YES
YES
NO

提示

For the first query, Bessie will visit the farms at time t=[9,7,8,8,13], so she will only get to visit farm 4 on time before FJ closes the farm.

For the second query, Bessie will not be able to visit any of the farms on time.

For the third query, Bessie will visit farms 3,4,5 on time.

For the fourth and fifth queries, Bessie will be able to visit all but the first farm on time.

SCORING:

  • Inputs 2-4: N,Q103
  • Inputs 5-9: ci,ti20
  • Inputs 10-17: No additional constraints.

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