CSES - Datatähti Open 2021 - Results
Submission details
Task:Programmers
Sender:ziihrs
Submission time:2021-01-31 22:41:07 +0200
Language:Python3 (PyPy3)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.05 s1, 2, 3details
#2ACCEPTED0.05 s1, 2, 3details
#30.08 s1, 2, 3details
#40.07 s1, 2, 3details
#5ACCEPTED0.05 s1, 2, 3details
#6ACCEPTED0.05 s1, 2, 3details
#70.08 s1, 2, 3details
#8ACCEPTED0.08 s1, 2, 3details
#90.11 s1, 2, 3details
#100.13 s1, 2, 3details
#11ACCEPTED0.06 s1, 2, 3details
#12ACCEPTED0.07 s1, 3details
#13ACCEPTED0.07 s1, 3details
#140.10 s1, 3details
#15ACCEPTED0.07 s1, 3details
#160.14 s1, 3details
#170.19 s2, 3details
#180.39 s2, 3details
#190.38 s2, 3details
#200.38 s2, 3details
#210.38 s2, 3details
#220.39 s2, 3details
#230.38 s2, 3details
#24--3details
#25ACCEPTED0.42 s3details
#260.56 s3details
#27ACCEPTED0.78 s3details
#28--3details
#29--3details
#30--3details
#31--3details

Code

N, K = map(int, input().split())
X = sorted(map(int, input().split()))

from heapq import heappush, heappop, heapify

class Link(tuple):
	def __lt__(s, o):
		return s[0] < o[0]

valid = {}
to_left = [-1] * N
to_right = [-1] * N
for i in range(N-1):
	valid[(i, i+1)] = X[i+1] - X[i]
	to_right[i] = i+1
	to_left[i+1] = i


Q = [(X[i] - X[i-1], i-1, i) for i in range(1, N)]
heapify(Q)

res = 0
for _ in range(K):
	while True:
		cost, l, r = heappop(Q)
		if (l, r) in valid:
			break

	res += cost
	valid.pop((l, r))

	if l != 0 and r != N-1:
		ll = to_left[l]
		rr = to_right[r]
		nc = valid.pop((ll, l)) + valid.pop((r, rr)) - cost

		to_right[ll] = rr
		to_left[rr] = ll
		valid[(ll, rr)] = nc

		heappush(Q, (nc, ll, rr))

print(res)

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
8 3
3 1 2 7 9 3 4 7

correct output
1

user output
1

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
2 1
2 13

correct output
11

user output
11

Test 3

Group: 1, 2, 3

Verdict:

input
20 10
16 20 6 15 19 12 11 17 20 6 15...

correct output
6

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 35, in <module>
    nc = v...

Test 4

Group: 1, 2, 3

Verdict:

input
14 5
11 3 8 3 14 8 10 13 11 10 17 1...

correct output
0

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 35, in <module>
    nc = v...

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
15 1
8 5 1 8 18 15 6 20 14 9 10 9 1...

correct output
0

user output
0

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

input
10 3
10 19 16 15 12 5 14 8 3 15

correct output
4

user output
4

Test 7

Group: 1, 2, 3

Verdict:

input
202 90
177 187 183 647 616 580 499 78...

correct output
213

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 35, in <module>
    nc = v...

Test 8

Group: 1, 2, 3

Verdict: ACCEPTED

input
2000 512
141 583 135 833 900 308 248 58...

correct output
0

user output
0

Test 9

Group: 1, 2, 3

Verdict:

input
2000 972
685 4 289 865 93 159 48 866 56...

correct output
276

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 35, in <module>
    nc = v...

Test 10

Group: 1, 2, 3

Verdict:

input
2000 1000
698 153 298 118 631 341 238 7 ...

correct output
517

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 35, in <module>
    nc = v...

Test 11

Group: 1, 2, 3

Verdict: ACCEPTED

input
2000 1
983 144 449 584 839 166 77 885...

correct output
0

user output
0

Test 12

Group: 1, 3

Verdict: ACCEPTED

input
1464 320
846762124 954854396 12767390 7...

correct output
35809369

user output
35809369

Test 13

Group: 1, 3

Verdict: ACCEPTED

input
2000 231
801945178 924940258 369188694 ...

correct output
7831421

user output
7831421

Test 14

Group: 1, 3

Verdict:

input
2000 461
464790475 932031556 838378103 ...

correct output
37272564

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 35, in <module>
    nc = v...

Test 15

Group: 1, 3

Verdict: ACCEPTED

input
2000 100
484046702 267135814 995006323 ...

correct output
1268400

user output
1268400

Test 16

Group: 1, 3

Verdict:

input
2000 996
98352148 438929491 242618159 1...

correct output
445965905

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 35, in <module>
    nc = v...

Test 17

Group: 2, 3

Verdict:

input
65879 19675
896 316 972 476 636 227 716 78...

correct output
0

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 35, in <module>
    nc = v...

Test 18

Group: 2, 3

Verdict:

input
200000 53820
995 720 135 767 943 742 191 26...

correct output
0

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 35, in <module>
    nc = v...

Test 19

Group: 2, 3

Verdict:

input
200000 32297
527 947 84 851 908 833 339 112...

correct output
0

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 35, in <module>
    nc = v...

Test 20

Group: 2, 3

Verdict:

input
200000 99982
561 174 242 275 460 109 664 68...

correct output
322

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 35, in <module>
    nc = v...

Test 21

Group: 2, 3

Verdict:

input
200000 99955
911 33 314 861 298 117 972 982...

correct output
245

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 35, in <module>
    nc = v...

Test 22

Group: 2, 3

Verdict:

input
200000 99972
783 1000 673 611 87 452 702 92...

correct output
290

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 35, in <module>
    nc = v...

Test 23

Group: 2, 3

Verdict:

input
200000 99961
795 136 128 643 60 422 371 839...

correct output
252

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 35, in <module>
    nc = v...

Test 24

Group: 3

Verdict:

input
195426 76599
442872072 619088799 118541378 ...

correct output
143376538

user output
(empty)

Test 25

Group: 3

Verdict: ACCEPTED

input
200000 1661
894106972 620084612 931442312 ...

correct output
33089

user output
33089

Test 26

Group: 3

Verdict:

input
200000 86032
211444153 846442677 297198384 ...

correct output
196001810

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 35, in <module>
    nc = v...

Test 27

Group: 3

Verdict: ACCEPTED

input
200000 28275
28280312 349705372 96535649 84...

correct output
11627219

user output
11627219

Test 28

Group: 3

Verdict:

input
200000 81473
178022892 112774306 250584651 ...

correct output
162430841

user output
(empty)

Test 29

Group: 3

Verdict:

input
200000 99987
297598052 494409138 182268523 ...

correct output
489497036

user output
(empty)

Test 30

Group: 3

Verdict:

input
200000 99971
316462272 843156468 434342923 ...

correct output
483167476

user output
(empty)

Test 31

Group: 3

Verdict:

input
200000 99964
811543559 465033274 620180191 ...

correct output
481497328

user output
(empty)