CSES - Datatähti 2020 alku - Results
Submission details
Task:Mastot
Sender:PauliK
Submission time:2019-10-12 17:53:08 +0300
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
#3ACCEPTED0.05 s1, 2, 3details
#4ACCEPTED0.05 s1, 2, 3details
#5ACCEPTED0.05 s1, 2, 3details
#6ACCEPTED0.05 s1, 2, 3details
#7ACCEPTED0.05 s1, 2, 3details
#80.05 s1, 2, 3details
#9ACCEPTED0.05 s1, 2, 3details
#10ACCEPTED0.05 s1, 2, 3details
#11ACCEPTED0.05 s1, 2, 3details
#120.05 s1, 2, 3details
#130.05 s1, 2, 3details
#14ACCEPTED0.05 s1, 2, 3details
#150.05 s1, 2, 3details
#16ACCEPTED0.05 s1, 2, 3details
#17ACCEPTED0.05 s1, 2, 3details
#18ACCEPTED0.05 s1, 2, 3details
#19ACCEPTED0.05 s1, 2, 3details
#20ACCEPTED0.05 s1, 2, 3details
#21ACCEPTED0.08 s2, 3details
#22ACCEPTED0.06 s2, 3details
#23ACCEPTED0.44 s2, 3details
#24ACCEPTED0.07 s2, 3details
#25ACCEPTED0.07 s2, 3details
#260.10 s2, 3details
#270.10 s2, 3details
#28ACCEPTED0.07 s2, 3details
#29ACCEPTED0.07 s2, 3details
#30ACCEPTED0.07 s2, 3details
#31ACCEPTED0.07 s2, 3details
#32ACCEPTED0.07 s2, 3details
#33ACCEPTED0.07 s2, 3details
#34--3details
#35ACCEPTED0.90 s3details
#36--3details
#37--3details
#380.96 s3details
#39--3details
#40--3details
#41ACCEPTED0.98 s3details
#420.93 s3details
#43ACCEPTED0.92 s3details
#44--3details
#45ACCEPTED0.97 s3details
#460.99 s3details

Code

#!/usr/bin/env python3
from itertools import count

def least2(stuf, actual_n):
    n = len(stuf)
    # max cost 10**9, max n 2 * 10**5
    total_costs = [2 * 10**15] * (n + 1)
    total_costs[0] = 0
    # vastaanotin cost & dist
    stuf.append((actual_n, 0, 0))

    for idx, (masto, cost, dist) in enumerate(stuf):
        # print(f"i have idx={idx}, masto={masto}, cost={cost}, dist={dist}")
        reach = min(masto + dist, actual_n)
        current_cost = total_costs[idx]
        for nidx, (nmasto, ncost, ndist) in enumerate(stuf[idx+1:], start=idx+1):
            # print(f"\ti have nidx={nidx}, nmasto={nmasto}, ncost={ncost}, ndist={ndist}")
            if nmasto > reach:
                # print("\tim out")
                break
            # -1 because cost starts at 1
            new_cost = current_cost + ncost
            if new_cost < total_costs[nidx]:
                # print("shorter path")
                total_costs[nidx] = new_cost
    return total_costs[-1]

def least(n, dists, costs):
    stuff = sorted(zip(costs, dists[1:], count(start=1)))
    unreachable = set(range(dists[0] + 1, n + 1))
    others = [(0, 0, dists[0])]
    for (cost, dist, masto) in stuff:
        if not unreachable:
            # everything reachable
            break
        unreachable.difference_update(range(masto, masto + dist + 1))
        others.append((masto, cost, dist))
    others.sort()
    # print(others)
    return least2(others, n)


def main():
    n = int(input())
    dist = [int(d) for d in input().split()]
    cost = [int(c) for c in input().split()]
    print(least(n, dist, cost))


if __name__ == "__main__":
    main()

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
6
2 2 3 1 2 4
4 1 3 4 2

correct output
3

user output
3

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
2
1 1
1

correct output
1

user output
1

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
2
2 1
1

correct output
0

user output
0

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
2 2 1
1 2

correct output
1

user output
1

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
2 2 1
2 1

correct output
1

user output
1

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

input
4
1 1 1 1
1000000000 1000000000 10000000...

correct output
3000000000

user output
3000000000

Test 7

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
19000000000

user output
19000000000

Test 8

Group: 1, 2, 3

Verdict:

input
20
1 1 2 1 1 1 2 1 1 2 1 1 1 2 1 ...

correct output
4609157377

user output
2000000000000000

Test 9

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
20 20 20 20 20 20 20 20 20 20 ...

correct output
0

user output
0

Test 10

Group: 1, 2, 3

Verdict: ACCEPTED

input
19
16 10 9 17 1 16 19 4 18 13 5 3...

correct output
8424700

user output
8424700

Test 11

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
2 4 3 4 4 4 4 1 1 3 4 2 1 3 3 ...

correct output
2817777553

user output
2817777553

Test 12

Group: 1, 2, 3

Verdict:

input
20
4 4 4 4 3 4 1 3 4 1 1 4 1 3 1 ...

correct output
3020673750

user output
2000000000000000

Test 13

Group: 1, 2, 3

Verdict:

input
20
5 1 3 4 2 4 2 2 5 1 3 3 2 4 1 ...

correct output
2064735712

user output
2000000000000000

Test 14

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
8 1 2 6 8 6 9 1 4 9 9 8 6 3 3 ...

correct output
378551508

user output
378551508

Test 15

Group: 1, 2, 3

Verdict:

input
20
5 2 8 9 4 10 1 8 9 9 8 1 7 8 9...

correct output
457149308

user output
2000000000000000

Test 16

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
7 6 2 6 1 3 10 4 6 3 5 2 2 10 ...

correct output
471575451

user output
471575451

Test 17

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
6 2 2 3 8 7 2 10 8 9 6 3 10 5 ...

correct output
620685913

user output
620685913

Test 18

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
4 5 3 8 2 8 5 9 6 3 7 5 1 6 9 ...

correct output
1132427688

user output
1132427688

Test 19

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
15 9 7 18 3 20 19 20 17 16 16 ...

correct output
333300698

user output
333300698

Test 20

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
19 18 17 16 15 14 13 12 11 10 ...

correct output
660514815

user output
660514815

Test 21

Group: 2, 3

Verdict: ACCEPTED

input
5000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
4999000000000

user output
4999000000000

Test 22

Group: 2, 3

Verdict: ACCEPTED

input
5000
5000 5000 5000 5000 5000 5000 ...

correct output
0

user output
0

Test 23

Group: 2, 3

Verdict: ACCEPTED

input
5000
4999 4998 4997 4996 4995 4994 ...

correct output
576616581

user output
576616581

Test 24

Group: 2, 3

Verdict: ACCEPTED

input
5000
3343 3711 2568 137 2621 3850 4...

correct output
671570

user output
671570

Test 25

Group: 2, 3

Verdict: ACCEPTED

input
5000
119 203 420 133 175 334 461 10...

correct output
85700253

user output
85700253

Test 26

Group: 2, 3

Verdict:

input
5000
8 6 2 1 4 5 7 3 4 2 1 10 3 6 6...

correct output
193210576015

user output
2000000000000000

Test 27

Group: 2, 3

Verdict:

input
5000
1 2 1 2 2 1 2 2 1 1 1 2 1 2 2 ...

correct output
1576581428593

user output
2000000000000000

Test 28

Group: 2, 3

Verdict: ACCEPTED

input
5000
300 1937 2136 770 429 2388 197...

correct output
3584707

user output
3584707

Test 29

Group: 2, 3

Verdict: ACCEPTED

input
5000
949 46 29 2237 2413 36 42 1162...

correct output
3210354

user output
3210354

Test 30

Group: 2, 3

Verdict: ACCEPTED

input
5000
1557 1727 1787 360 1698 2423 1...

correct output
3177107

user output
3177107

Test 31

Group: 2, 3

Verdict: ACCEPTED

input
5000
484 1991 2309 1326 1901 2426 8...

correct output
4863018

user output
4863018

Test 32

Group: 2, 3

Verdict: ACCEPTED

input
5000
1833 459 1994 2050 272 31 708 ...

correct output
2876923

user output
2876923

Test 33

Group: 2, 3

Verdict: ACCEPTED

input
4999
530 2248 1916 859 2394 1403 24...

correct output
5194452

user output
5194452

Test 34

Group: 3

Verdict:

input
200000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
199999000000000

user output
(empty)

Test 35

Group: 3

Verdict: ACCEPTED

input
200000
200000 200000 200000 200000 20...

correct output
0

user output
0

Test 36

Group: 3

Verdict:

input
200000
199999 199998 199997 199996 19...

correct output
819945000

user output
(empty)

Test 37

Group: 3

Verdict:

input
200000
9036 179861 197509 187949 9444...

correct output
59563

user output
(empty)

Test 38

Group: 3

Verdict:

input
200000
357 1516 141 399 860 1591 544 ...

correct output
247414000

user output
247953066

Test 39

Group: 3

Verdict:

input
200000
10 4 1 7 1 8 8 4 8 2 2 4 2 4 8...

correct output
7789595210075

user output
(empty)

Test 40

Group: 3

Verdict:

input
200000
1 2 1 1 1 1 2 1 2 2 1 2 2 2 2 ...

correct output
62777824801872

user output
(empty)

Test 41

Group: 3

Verdict: ACCEPTED

input
200000
9473 42975 69773 60909 9354 20...

correct output
76814

user output
76814

Test 42

Group: 3

Verdict:

input
200000
31087 18493 14158 65333 95850 ...

correct output
180614

user output
195976

Test 43

Group: 3

Verdict: ACCEPTED

input
200000
66563 17340 2293 5101 35636 96...

correct output
56642

user output
56642

Test 44

Group: 3

Verdict:

input
200000
4005 35201 22254 56956 49098 7...

correct output
287201

user output
(empty)

Test 45

Group: 3

Verdict: ACCEPTED

input
200000
99266 91407 53419 70750 93505 ...

correct output
54045

user output
54045

Test 46

Group: 3

Verdict:

input
199999
23098 95019 27998 22880 40713 ...

correct output
184595

user output
215449