CSES - Datatähti 2016 alku - Results
Submission details
Task:Lennot
Sender:6502
Submission time:2015-10-02 20:30:39 +0300
Language:Python3
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.08 s1details
#2ACCEPTED0.08 s1details
#3ACCEPTED0.09 s1details
#40.08 s1details
#5ACCEPTED0.10 s1details
#60.10 s2details
#70.09 s2details
#80.10 s2details
#90.09 s2details
#100.10 s2details
#11--3details
#12--3details
#13--3details
#14--3details
#15--3details
#16--3details
#17--3details

Code

__import__("sys").setrecursionlimit(10000)

def rec_price(city,free,paid_cities,dpaid_cities):
    global mp,mf
    pp=2147483647
    pf=2147483647
    if mp[city] >= 0:
        if not free:
            return mp[city]
        return mf[city]
    if city==n:
        return 0
    for f in flights[city]:
        if f[0] not in dpaid_cities:
            #if mp[f[0]]>=0:
            #    pp=min(pp,mp[f[0]]+f[1])
            #    pf=min(pf,mf[f[0]])
            if f[0] == n:
                pp=min(pp,f[1])
                pf=0
            else:
                t,d=paid_cities[:],dpaid_cities[:]
                if not free:
                    if city in t:
                        d+=[city]
                    else:
                        t+=[city]
                x=rec_price(f[0],not free,t,d)
                pp=min(pp,x+f[1])
                pf=min(pf,x)
        if mp[city] >= 0:
            if not free:
                return mp[city]
            return mf[city]
    mp[city] = pp
    mf[city] = pf
    if not free:
        return pp
    return pf

n,m=map(int,input().split(" "))
mp = [-1 for i in range(n+1)]
mf = [-1 for i in range(n+1)]

flights=[[] for _ in range(n+1)]

for i in range(m):
    l=list(map(int,input().split(" ")))
    flights[l[0]]+=[l[1:]]

print(rec_price(1,False,[],[]))

Test details

Test 1

Group: 1

Verdict:

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

correct output
8

user output
2147483647

Test 2

Group: 1

Verdict: ACCEPTED

input
10 20
4 3 10
1 10 9
3 4 10
2 6 7
...

correct output
9

user output
9

Test 3

Group: 1

Verdict: ACCEPTED

input
10 20
5 7 4
6 1 1
7 3 8
8 4 2
...

correct output
8

user output
8

Test 4

Group: 1

Verdict:

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

correct output
13

user output
2147483647

Test 5

Group: 1

Verdict: ACCEPTED

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

correct output
4

user output
4

Test 6

Group: 2

Verdict:

input
1000 2000
91 828 365044406
17 984 445675537
251 852 100987451
907 487 58830088
...

correct output
11893353673

user output
2147483647

Test 7

Group: 2

Verdict:

input
1000 2000
722 939 530579090
404 606 268877348
133 750 760086153
506 46 582310443
...

correct output
30248963445

user output
2147483647

Test 8

Group: 2

Verdict:

input
1000 2000
340 237 43690066
217 141 453160975
744 202 639037814
605 926 404985542
...

correct output
3126797692

user output
2147483647

Test 9

Group: 2

Verdict:

input
1000 2000
88 312 190442306
480 402 411574469
29 901 397491243
636 459 323246996
...

correct output
18416073173

user output
2147483647

Test 10

Group: 2

Verdict:

input
1000 2000
333 228 718389176
796 286 323493090
743 43 751876815
128 554 175625940
...

correct output
6399349335

user output
2147483647

Test 11

Group: 3

Verdict:

input
100000 200000
28264 92686 186865663
92570 33956 925976418
87377 71249 644757113
16701 81203 922125505
...

correct output
518249578675

user output
(empty)

Test 12

Group: 3

Verdict:

input
100000 200000
95740 71482 846654568
44131 16806 670712211
3967 49254 424174139
39369 53007 830346557
...

correct output
920862321580

user output
(empty)

Test 13

Group: 3

Verdict:

input
100000 200000
79947 25489 71554257
59184 25577 328436360
82945 73554 4942918
22380 92385 874250042
...

correct output
399407698440

user output
(empty)

Test 14

Group: 3

Verdict:

input
100000 200000
31139 12960 580545990
27744 95556 747296719
46969 42578 840321561
5638 28960 513805324
...

correct output
165235287505

user output
(empty)

Test 15

Group: 3

Verdict:

input
99993 199980
1 3 1
3 2 1
1 4 1
4 2 1
...

correct output
2

user output
(empty)

Test 16

Group: 3

Verdict:

input
100000 149994
93867 98509 1755709
85029 99843 1347591
10305 35305 6447
75638 80585 1829972
...

correct output
1124960

user output
(empty)

Test 17

Group: 3

Verdict:

input
100000 200000
70413 71496 49
15963 40963 18635
81291 89420 1850028
8848 33848 17316
...

correct output
110298

user output
(empty)