2580 . Easy Generating Function

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User's AC Ratio

NaN% (0/0)

Submission's AC Ratio

NaN% (0/0)

Tags

NTU Preliminary NTU Preliminary 2016

Description

The PDF version of this problem can be downloaded here.

Input Format

Output Format

Sample Input 1

6
2 1
2 2
4 2
100 1
100 8
100 11

Sample Output 1

2
-1
4
2
6
8

Hints

Problem Source

Migrated from old NTUJ.

hh

Subtasks

No. Testdata Range Score

Testdata and Limits

No. Time Limit (ms) Memory Limit (VSS, KiB) Output Limit (KiB) Subtasks
0 1000 65536 131072
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