CSES - Aalto Competitive Programming 2026 - wk3 - Wed

Submission details
Task:	Wario Kart II
Sender:	aalto26cw_004
Submission time:	2026-09-16 17:31:54 +0300
Language:	Python3 (PyPy3)
Status:	READY
Result:	ACCEPTED

Test results
test	verdict	time
#1	ACCEPTED	0.04 s	details
#2	ACCEPTED	0.04 s	details
#3	ACCEPTED	0.04 s	details
#4	ACCEPTED	0.04 s	details
#5	ACCEPTED	0.04 s	details
#6	ACCEPTED	0.04 s	details
#7	ACCEPTED	0.04 s	details
#8	ACCEPTED	0.04 s	details
#9	ACCEPTED	0.04 s	details
#10	ACCEPTED	0.04 s	details
#11	ACCEPTED	0.04 s	details
#12	ACCEPTED	0.04 s	details
#13	ACCEPTED	0.04 s	details
#14	ACCEPTED	0.04 s	details
#15	ACCEPTED	0.04 s	details
#16	ACCEPTED	0.04 s	details
#17	ACCEPTED	0.04 s	details
#18	ACCEPTED	0.04 s	details
#19	ACCEPTED	0.04 s	details
#20	ACCEPTED	0.04 s	details
#21	ACCEPTED	0.04 s	details
#22	ACCEPTED	0.04 s	details
#23	ACCEPTED	0.04 s	details
#24	ACCEPTED	0.04 s	details
#25	ACCEPTED	0.04 s	details
#26	ACCEPTED	0.04 s	details
#27	ACCEPTED	0.04 s	details
#28	ACCEPTED	0.04 s	details
#29	ACCEPTED	0.04 s	details
#30	ACCEPTED	0.04 s	details
#31	ACCEPTED	0.04 s	details
#32	ACCEPTED	0.04 s	details
#33	ACCEPTED	0.04 s	details
#34	ACCEPTED	0.04 s	details
#35	ACCEPTED	0.04 s	details
#36	ACCEPTED	0.04 s	details
#37	ACCEPTED	0.04 s	details
#38	ACCEPTED	0.04 s	details
#39	ACCEPTED	0.04 s	details
#40	ACCEPTED	0.04 s	details
#41	ACCEPTED	0.04 s	details
#42	ACCEPTED	0.04 s	details
#43	ACCEPTED	0.04 s	details
#44	ACCEPTED	0.04 s	details
#45	ACCEPTED	0.04 s	details
#46	ACCEPTED	0.04 s	details
#47	ACCEPTED	0.04 s	details
#48	ACCEPTED	0.04 s	details
#49	ACCEPTED	0.05 s	details
#50	ACCEPTED	0.08 s	details
#51	ACCEPTED	0.08 s	details
#52	ACCEPTED	0.08 s	details
#53	ACCEPTED	0.08 s	details
#54	ACCEPTED	0.08 s	details
#55	ACCEPTED	0.08 s	details
#56	ACCEPTED	0.08 s	details
#57	ACCEPTED	0.08 s	details
#58	ACCEPTED	0.08 s	details
#59	ACCEPTED	0.07 s	details

Code

n, k = map(int, input().split())
a = list(map(int, input().split()))

save = [0.0] * n
for i in range(n):
    dist = min(a[i], n - i)
    save[i] = dist - dist / a[i]

max_saved = [0.0] * (n + 1)

for i in range(n - 1, -1, -1):
    
    covered = min(a[i], n - i)
    nxt = min(i + covered + k, n)
    use = save[i] + max_saved[nxt]
    skip = max_saved[i + 1]
    max_saved[i] = max(use, skip)

total_time = n - max_saved[0]
print(total_time)

Test details

Test 1

Verdict: ACCEPTED

input
`1 5 3` view save

correct output
`0.33333333333333333334` view save

user output
`0.33333333333333326` view save

Test 2

Verdict: ACCEPTED

input
`2 5 3 4` view save

correct output
`0.66666666666666666668` view save

user output
`0.6666666666666665` view save

Test 3

Verdict: ACCEPTED

input
`2 5 2 2` view save

correct output
`1.00000000000000000000` view save

user output
`1.0` view save

Test 4

Verdict: ACCEPTED

input
`3 5 2 2 2` view save

correct output
`2.00000000000000000000` view save

user output
`2.0` view save

Test 5

Verdict: ACCEPTED

input
`3 5 3 4 3` view save

correct output
`1.00000000000000000000` view save

user output
`1.0` view save

Test 6

Verdict: ACCEPTED

input
`3 5 2 2 2` view save

correct output
`2.00000000000000000000` view save

user output
`2.0` view save

Test 7

Verdict: ACCEPTED

input
`4 5 3 4 3 4` view save

correct output
`1.75000000000000000000` view save

user output
`1.75` view save

Test 8

Verdict: ACCEPTED

input
`4 5 2 2 2 4` view save

correct output
`3.00000000000000000000` view save

user output
`3.0` view save

Test 9

Verdict: ACCEPTED

input
`4 3 2 2 2 2` view save

correct output
`3.00000000000000000000` view save

user output
`3.0` view save

Test 10

Verdict: ACCEPTED

input
`5 5 3 4 3 4 3` view save

correct output
`2.00000000000000000000` view save

user output
`2.0` view save

Test 11

Verdict: ACCEPTED

input
`5 5 2 2 2 4 2` view save

correct output
`3.50000000000000000000` view save

user output
`3.5` view save

Test 12

Verdict: ACCEPTED

input
`5 5 2 2 2 2 2` view save

correct output
`4.00000000000000000000` view save

user output
`4.0` view save

Test 13

Verdict: ACCEPTED

input
`5 5 2 2 3 3 4` view save

correct output
`3.00000000000000000000` view save

user output
`3.0` view save

Test 14

Verdict: ACCEPTED

input
`5 1 4 4 4 3 4` view save

correct output
`2.00000000000000000000` view save

user output
`2.0` view save

Test 15

Verdict: ACCEPTED

input
`5 4 2 3 5 5 3` view save

correct output
`2.59999999999999999991` view save

user output
`2.6` view save

Test 16

Verdict: ACCEPTED

input
`5 1 3 2 2 2 2` view save

correct output
`2.50000000000000000000` view save

user output
`2.5` view save

Test 17

Verdict: ACCEPTED

input
`5 1 3 5 4 3 5` view save

correct output
`1.79999999999999999996` view save

user output
`1.7999999999999998` view save

Test 18

Verdict: ACCEPTED

input
`5 1 5 3 4 5 2` view save

correct output
`1.00000000000000000000` view save

user output
`1.0` view save

Test 19

Verdict: ACCEPTED

input
`5 2 3 2 2 2 2` view save

correct output
`3.00000000000000000000` view save

user output
`3.0` view save

Test 20

Verdict: ACCEPTED

input
`10 5 3 4 3 4 3 3 3 3 3 2` view save

correct output
`6.66666666666666666652` view save

user output
`6.666666666666666` view save

Test 21

Verdict: ACCEPTED

input
`10 5 2 2 2 4 2 2 2 3 2 3` view save

correct output
`7.00000000000000000000` view save

user output
`7.0` view save

Test 22

Verdict: ACCEPTED

input
`10 5 2 2 2 2 2 2 2 2 2 2` view save

correct output
`8.00000000000000000000` view save

user output
`8.0` view save

Test 23

Verdict: ACCEPTED

input
`10 5 2 2 3 3 4 3 4 2 2 2` view save

correct output
`7.00000000000000000000` view save

user output
`7.0` view save

Test 24

Verdict: ACCEPTED

input
`10 1 4 4 4 3 4 3 2 2 4 2` view save

correct output
`4.50000000000000000000` view save

user output
`4.5` view save

Test 25

Verdict: ACCEPTED

input
`10 4 2 3 5 5 3 2 4 3 5 3` view save

correct output
`6.00000000000000000000` view save

user output
`6.0` view save

Test 26

Verdict: ACCEPTED

input
`10 1 3 2 2 2 2 3 3 2 3 3` view save

correct output
`5.33333333333333333348` view save

user output
`5.333333333333333` view save

Test 27

Verdict: ACCEPTED

input
`10 1 3 5 4 3 5 3 4 3 4 2` view save

correct output
`4.00000000000000000000` view save

user output
`4.0` view save

Test 28

Verdict: ACCEPTED

input
`10 1 5 3 4 5 2 3 2 4 3 5` view save

correct output
`3.75000000000000000000` view save

user output
`3.75` view save

Test 29

Verdict: ACCEPTED

input
`10 2 3 2 2 2 2 2 2 4 3 2` view save

correct output
`5.75000000000000000000` view save

user output
`5.75` view save

Test 30

Verdict: ACCEPTED

input
`100 72 51 37 52 34 51 26 38 40 24 27 ...` view save

correct output
`42.00000000000000000000` view save

user output
`42.0` view save

Test 31

Verdict: ACCEPTED

input
`100 72 94 2 14 31 100 16 25 11 41 20 ...` view save

correct output
`4.96000000000000000003` view save

user output
`4.959999999999994` view save

Test 32

Verdict: ACCEPTED

input
`100 2 19 12 20 10 11 9 8 8 4 5 15 13...` view save

correct output
`18.70588235294117647120` view save

user output
`18.705882352941174` view save

Test 33

Verdict: ACCEPTED

input
`100 71 8 4 2 6 6 9 5 9 2 3 2 3 3 2 2 ...` view save

correct output
`85.00000000000000000000` view save

user output
`85.0` view save

Test 34

Verdict: ACCEPTED

input
`100 55 17 89 79 66 56 64 55 21 14 89 ...` view save

correct output
`12.00000000000000000000` view save

user output
`12.0` view save

Test 35

Verdict: ACCEPTED

input
`100 87 6 3 4 7 7 4 2 5 4 6 4 5 4 3 7 ...` view save

correct output
`90.00000000000000000000` view save

user output
`90.0` view save

Test 36

Verdict: ACCEPTED

input
`100 33 21 79 8 5 36 12 94 57 11 51 59...` view save

correct output
`7.00000000000000000000` view save

user output
`7.0` view save

Test 37

Verdict: ACCEPTED

input
`100 78 9 12 24 18 12 24 9 14 8 13 3 3...` view save

correct output
`77.00000000000000000000` view save

user output
`77.0` view save

Test 38

Verdict: ACCEPTED

input
`100 97 2 3 2 3 3 2 2 2 3 2 3 2 2 3 3 ...` view save

correct output
`98.00000000000000000000` view save

user output
`98.0` view save

Test 39

Verdict: ACCEPTED

input
`100 50 20 20 2 6 13 7 2 10 34 17 7 11...` view save

correct output
`52.96666666666666666713` view save

user output
`52.96666666666667` view save

Test 40

Verdict: ACCEPTED

input
`200 72 51 37 52 34 51 26 38 40 24 27 ...` view save

correct output
`89.00000000000000000000` view save

user output
`89.0` view save

Test 41

Verdict: ACCEPTED

input
`200 72 94 2 14 31 100 16 25 11 41 20 ...` view save

correct output
`73.91891891891891892136` view save

user output
`73.91891891891892` view save

Test 42

Verdict: ACCEPTED

input
`200 2 19 12 20 10 11 9 8 8 4 5 15 13...` view save

correct output
`36.90000000000000000139` view save

user output
`36.900000000000006` view save

Test 43

Verdict: ACCEPTED

input
`200 71 8 4 2 6 6 9 5 9 2 3 2 3 3 2 2 ...` view save

correct output
`177.00000000000000000000` view save

user output
`177.0` view save

Test 44

Verdict: ACCEPTED

input
`200 55 17 89 79 66 56 64 55 21 14 89 ...` view save

correct output
`58.62790697674418604821` view save

user output
`58.627906976744185` view save

Test 45

Verdict: ACCEPTED

input
`200 87 6 3 4 7 7 4 2 5 4 6 4 5 4 3 7 ...` view save

correct output
`184.00000000000000000000` view save

user output
`184.0` view save

Test 46

Verdict: ACCEPTED

input
`200 33 21 79 8 5 36 12 94 57 11 51 59...` view save

correct output
`39.97647058823529411797` view save

user output
`39.97647058823529` view save

Test 47

Verdict: ACCEPTED

input
`1000 78 9 12 24 18 12 24 9 14 8 13 3 3...` view save

correct output
`778.00000000000000000000` view save

user output
`778.0` view save

Test 48

Verdict: ACCEPTED

input
`1000 97 2 3 2 3 3 2 2 2 3 2 3 2 2 3 3 ...` view save

correct output
`980.00000000000000000000` view save

user output
`980.0` view save

Test 49

Verdict: ACCEPTED

input
`10000 50 20 20 2 6 13 7 2 10 34 17 7 11...` view save

correct output
`6049.00000000000000000000` view save

user output
`6049.0` view save

Test 50

Verdict: ACCEPTED

input
`100000 59 39252 46336 33082 47087 29905 ...` view save

correct output
`64.97006295772838237179` view save

user output
`64.97006295772735` view save

Test 51

Verdict: ACCEPTED

input
`100000 100 30041 38891 6 5345 12609 41664...` view save

correct output
`203.77740406665647454609` view save

user output
`203.77740406665544` view save

Test 52

Verdict: ACCEPTED

input
`100000 18 1132 40617 23967 41323 18982 2...` view save

correct output
`40.94677609727978918885` view save

user output
`40.9467760972766` view save

Test 53

Verdict: ACCEPTED

input
`100000 7 39007 46266 16025 6684 28138 3...` view save

correct output
`14.93255621844882973827` view save

user output
`14.932556218438549` view save

Test 54

Verdict: ACCEPTED

input
`100000 90 52921 16702 94063 82743 69126 ...` view save

correct output
`91.66979787325027796002` view save

user output
`91.6697978732409` view save

Test 55

Verdict: ACCEPTED

input
`100000 5 19332 18457 4591 8077 20395 21...` view save

correct output
`35.88927530302255408320` view save

user output
`35.88927530302317` view save

Test 56

Verdict: ACCEPTED

input
`100000 95 29643 18699 73326 5739 3724 33...` view save

correct output
`96.91999685748703713406` view save

user output
`96.91999685748306` view save

Test 57

Verdict: ACCEPTED

input
`100000 22 5953 2436 3347 7466 5522 3478 ...` view save

correct output
`330.93907248742010063225` view save

user output
`330.9390724874247` view save

Test 58

Verdict: ACCEPTED

input
`100000 1 84598 20915 75920 32975 46369 ...` view save

correct output
`2.81955087271179225200` view save

user output
`2.819550872707623` view save

Test 59

Verdict: ACCEPTED

input
`100000 36 522 520 516 9 140 330 149 15 2...` view save

correct output
`3870.97771317829457360382` view save

user output
`3870.9777131782903` view save

Aalto Competitive Programming 2026 - wk3 - Wed

Wario Kart II

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

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Test 18

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Test 20

Test 21

Test 22

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Test 33

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Test 49

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Test 52

Test 53

Test 54

Test 55

Test 56

Test 57

Test 58

Test 59

Tasks

Submissions (aalto26cw_004)