01204212/resistors
- This is part of 01204212
You want to buy a resistor. The shop has a lot of resistors available. If you want a resister with the resistance of r ohm, you are usually fine with having a resister with the resistance higher than r ohm.
There are 2 versions of the task.
เนื้อหา
Resistor 1: Unlimited supply
There are n types of resistors in the shop. Type i resistors have the resistance of ri ohm.
You get m' requests, each request specifies the expected resistance x. You want to answer with the smallest resistance ri available at the shop which is at least as large as x. If every resistor at the shop has resistance less than x, you should output -1.
Input/output
Input
- First line: two integers n and m (1<=n<=100,000; 1<=m<=100,000)
- Next n lines: line 1+i contains resistance ri. It is guaranteed that the values are increasing ri < ri+1, for 1<=i<n.
- Next m lines: line 1+n+j specifies the j-th request as an integer x.
Output
The output contains m lines. Each line specifies the smallest resistance ri available at the shop which is at least as large as x. If every resistor at the shop has resistance less than x, you should output -1.
Example
Input
5 5 10 20 30 50 100 9 15 30 101 21
Output
10 20 30 -1 30