1093 . 好朋友

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User's AC Ratio

NaN% (0/0)

Submission's AC Ratio

NaN% (0/0)

Tags

npsc npsc-junior npsc-2020

Description

題目 PDF 檔在這裡

Input Format

Output Format

Sample Input 1

3
2 2 1 1
2 3 1 0
1 3 0 0

Sample Output 1

4
0 1
2 3
0 2
1 3
-1
0

Hints

Problem Source

NPSC 2020 國中組初賽 pD

Subtasks

No. Testdata Range Constraints Score
1 0 範例測資 0
2 0~39 無額外限制 100

Testdata and Limits

No. Time Limit (ms) Memory Limit (VSS, KiB) Output Limit (KiB) Subtasks
0 1000 1048576 1048576 1 2
1 1000 1048576 1048576 2
2 1000 1048576 1048576 2
3 1000 1048576 1048576 2
4 1000 1048576 1048576 2
5 1000 1048576 1048576 2
6 1000 1048576 1048576 2
7 1000 1048576 1048576 2
8 1000 1048576 1048576 2
9 1000 1048576 1048576 2
10 1000 1048576 1048576 2
11 1000 1048576 1048576 2
12 1000 1048576 1048576 2
13 1000 1048576 1048576 2
14 1000 1048576 1048576 2
15 1000 1048576 1048576 2
16 1000 1048576 1048576 2
17 1000 1048576 1048576 2
18 1000 1048576 1048576 2
19 1000 1048576 1048576 2
20 1000 1048576 1048576 2
21 1000 1048576 1048576 2
22 1000 1048576 1048576 2
23 1000 1048576 1048576 2
24 1000 1048576 1048576 2
25 1000 1048576 1048576 2
26 1000 1048576 1048576 2
27 1000 1048576 1048576 2
28 1000 1048576 1048576 2
29 1000 1048576 1048576 2
30 1000 1048576 1048576 2
31 1000 1048576 1048576 2
32 1000 1048576 1048576 2
33 1000 1048576 1048576 2
34 1000 1048576 1048576 2
35 1000 1048576 1048576 2
36 1000 1048576 1048576 2
37 1000 1048576 1048576 2
38 1000 1048576 1048576 2
39 1000 1048576 1048576 2
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