2223 . A. 礦砂採集

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Caido
$\mathbb{W}\mathcal{aimai}\sim$

User's AC Ratio

98.3% (113/115)

Submission's AC Ratio

69.4% (136/196)

Tags

全國賽 2020-全國賽 nhspc109

Description

題目 PDF 檔在這裡

Input Format

Output Format

Sample Input 1

5 3
1 11
2 7
1 5
2 3
1 2

Sample Output 1

25

Sample Input 2

8 13
9 5
1 7
2 9
5 8
5 2
7 10
3 2
6 3

Sample Output 2

120

Hints

Problem Source

109 學年度全國資訊學科能力競賽

Subtasks

No. Testdata Range Constraints Score
1 0~1 範例測資。 0
2 2~12 輸入滿足 $p_1 \ge p_2 \ge \cdots \ge p_n$。 50
3 13~23 無額外限制。 50

Testdata and Limits

No. Time Limit (ms) Memory Limit (VSS, KiB) Output Limit (KiB) Subtasks
0 1000 131072 65536 1
1 1000 131072 65536 1
2 1000 131072 65536 2
3 1000 131072 65536 2
4 1000 131072 65536 2
5 1000 131072 65536 2
6 1000 131072 65536 2
7 1000 131072 65536 2
8 1000 131072 65536 2
9 1000 131072 65536 2
10 1000 131072 65536 2
11 1000 131072 65536 2
12 1000 131072 65536 2
13 1000 131072 65536 3
14 1000 131072 65536 3
15 1000 131072 65536 3
16 1000 131072 65536 3
17 1000 131072 65536 3
18 1000 131072 65536 3
19 1000 131072 65536 3
20 1000 131072 65536 3
21 1000 131072 65536 3
22 1000 131072 65536 3
23 1000 131072 65536 3
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