CSES - Datatähti 2016 alku - Results
Submission details
Task:Lennot
Sender:tomivah
Submission time:2015-10-11 19:47:01
Language:C++
Status:READY
Result:24
Feedback
groupverdictscore
#1ACCEPTED24
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.06 s1details
#2ACCEPTED0.05 s1details
#3ACCEPTED0.06 s1details
#4ACCEPTED0.06 s1details
#5ACCEPTED0.05 s1details
#60.05 s2details
#70.06 s2details
#80.05 s2details
#90.06 s2details
#100.06 s2details
#110.21 s3details
#120.22 s3details
#130.20 s3details
#140.17 s3details
#15ACCEPTED0.20 s3details
#16--3details
#17--3details

Compiler report

input/code.cpp: In function 'bool search(std::set<std::pair<std::pair<long long unsigned int, long long unsigned int>, long long unsigned int> >&, std::map<long long unsigned int, long long unsigned int>&, std::vector<std::vector<long long unsigned int*> >&)':
input/code.cpp:23:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for ( int j = 0; j < cities.at( city.first - 1 ).size(); ++j )
                     ^

Code

#include <iostream>
#include <string>
#include <vector>
#include <set>
#include <map>

#define ull unsigned long long

bool search( std::set< std::pair< std::pair< ull, ull>, ull > >& open, std::map< ull, ull >& closed, std::vector< std::vector< ull* > >& cities )
{
	std::pair< ull, ull > city( open.begin()->second, open.begin()->first.first );
	ull flights = open.begin()->first.second;

	if ( city.first == cities.size() )
	{
		std::cout << city.second << "\n";
		return true;
	}

	closed.insert( city );
	open.erase( open.begin() );

	for ( int j = 0; j < cities.at( city.first - 1 ).size(); ++j )
	{
		ull* path = cities.at( city.first - 1 ).at( j );
		ull cost = city.second;

		if ( flights % 2 == 0 )
		{
			cost += path[ 1 ];
		}

		if ( !closed.count( path[ 0 ] ) )
		{
			open.insert( std::pair< std::pair< ull, ull >, ull >( std::pair< ull, ull >( cost, flights + 1 ), path[ 0 ] ) );
		}
		else if ( cost <= closed[ path[ 0 ] ] + 1000 )
		{
			open.insert( std::pair< std::pair< ull, ull >, ull >( std::pair< ull, ull >( cost, flights + 1 ), path[ 0 ] ) );
			closed.erase( path[ 0 ] );
		}
	}

	return false;
}

int main()
{
	std::ios_base::sync_with_stdio( false );

	ull cityCount, pathCount;
	std::cin >> cityCount >> pathCount;

	std::vector< std::vector< ull* > > cities;

	for ( ull i = 0; i < cityCount; ++i )
	{
		std::vector< ull* > vec;
		cities.push_back( vec );
	}

	for ( ull i = 0; i < pathCount; ++i )
	{
		ull from;
		ull* path = new ull[ 2 ];
		std::cin >> from >> path[ 0 ] >> path[ 1 ];
		cities.at( from - 1 ).push_back( path );
	}

	std::set< std::pair< std::pair< ull, ull>, ull > > open;
	open.insert( std::pair< std::pair< ull, ull>, ull >( std::pair< ull, ull >( 0, 0 ), 1 ) );
	std::map< ull, ull > closed;

	while ( !search( open, closed, cities ) )
	{

	}
	
	for ( ull i = 0; i < cityCount; ++i )
	{
		for ( ull j = 0; j < cities.at( i ).size(); ++j )
		{
			delete[] cities.at( i ).at( j );
		}
	}

	return 0;
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

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

correct output
8

user output
8

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: ACCEPTED

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

correct output
13

user output
13

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
12664596954

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
32395924742

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
3673014602

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
19899313434

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
6518176073

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
559126249857

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
1001912223447

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
430279152110

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
178404389272

Test 15

Group: 3

Verdict: ACCEPTED

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

correct output
2

user output
2

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)