CSES - Datatähti 2016 alku - Results
Submission details
Task:Lennot
Sender:6502
Submission time:2015-10-01 17:17:19 +0300
Language:C++
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.05 s1details
#2ACCEPTED0.05 s1details
#3ACCEPTED0.05 s1details
#40.05 s1details
#5ACCEPTED0.05 s1details
#60.05 s2details
#70.05 s2details
#80.06 s2details
#90.07 s2details
#100.05 s2details
#110.14 s3details
#120.14 s3details
#130.13 s3details
#140.12 s3details
#150.13 s3details
#160.13 s3details
#170.14 s3details

Code

#include <string.h>
#include <iostream>
#include <vector>
#include <algorithm>
#include <iterator>

using namespace std;

#define ull unsigned long long

int n;
int * flights;
int * paid;

ull rec_price(int city, int free) {
	ull p = 100000000000000;
	if (city == (n - 1))
		return 0;
	int c = city*n;
	for(int i = 0; i < n; ++i) {
		if(flights[c+i] < 0) continue;
		if(paid[i] < 2) {
			if (!free) {
				paid[city]++;
			}
			ull r = rec_price(i, !free) + (free?0:flights[c+i]);
			p = min(p,r);
		}
	}
	if (!free) {
		paid[city]--;
	}
	return p;
}
/*
4 6
1 2 5
2 3 8
2 1 4
3 1 6
3 4 1
4 2 3
*/
int main() {
    cin.sync_with_stdio(false);
	int m;
    cin >> n >> m;
    flights = new int[n*n];
	paid = new int[n];
	int a, b, c;
	for (int i = 0; i < n*n; i++) {
		flights[i] = -1;
		if (i < n) paid[i] = 0;
	}
	for (int i = 0; i < m; i++) {
		cin >> a >> b >> c;
		flights[a*n-n+b-1] = c;
	}
	/*for (int a = 0; a < n; a++) {
		for(int b = 0; b < n; b++) {
			int j = a*n+b;
			if (flights[j] < 0) continue;
			printf("%d %d %d\n",a+1,b+1,flights[j]);
		}
	}
	printf("=VEC\n");
	for (int i = 0; i < n; i++) {
		vector<int> v = flights[i];
		for(vector<int>::iterator it = v.begin(); it != v.end(); ++it, ++it) {
			printf("%d %d %d\n",i+1,*it,*(it+1));
		}
	}*/
    cout << rec_price(0, 0) << "\n";
    return 0;
}

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
13

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
14

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
54321396349

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
156922183777

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
17006919377

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
87582588804

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
33103877039

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)