CSES - Datatähti 2016 alku - Results
Submission details
Task:Lennot
Sender:fergusq
Submission time:2015-10-02 19:09:16
Language:C++
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED24
#2ACCEPTED37
#3ACCEPTED39
Test results
testverdicttimegroup
#1ACCEPTED0.05 s1details
#2ACCEPTED0.06 s1details
#3ACCEPTED0.06 s1details
#4ACCEPTED0.05 s1details
#5ACCEPTED0.06 s1details
#6ACCEPTED0.06 s2details
#7ACCEPTED0.06 s2details
#8ACCEPTED0.07 s2details
#9ACCEPTED0.06 s2details
#10ACCEPTED0.06 s2details
#11ACCEPTED0.18 s3details
#12ACCEPTED0.19 s3details
#13ACCEPTED0.19 s3details
#14ACCEPTED0.16 s3details
#15ACCEPTED0.10 s3details
#16ACCEPTED0.14 s3details
#17ACCEPTED0.19 s3details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:40:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (plusgoodlong i = 0; i < v[s].size(); i++) {
                              ^

Code

#include <iostream>
#include <queue>

using namespace std;

#define fromto(var, from, to) for (plusgoodlong var = from; var < to; var++)
#define times(k) for (plusgoodlong __xxxx__ = 0; __xxxx__ < k; __xxxx__++)
#define INF 99999999999999

typedef long long plusgoodlong;

int main() {
	cin.sync_with_stdio(false);
	plusgoodlong n, m;
	cin >> n >> m;
	
	vector<pair<plusgoodlong,plusgoodlong> > v[1+2*n];
	
	times(m) {
		plusgoodlong a, b, h;
		cin >> a >> b >> h;
		v[a].push_back(make_pair(n+b, h));
		v[n+a].push_back(make_pair(b, 0));
	}
	
	priority_queue<pair<plusgoodlong,plusgoodlong> > q;
	plusgoodlong t[1+2*n], e[1+2*n];
	
	fromto(i, 1, 1+2*n) t[i] = 0;
	
	for (plusgoodlong i = 1; i <= n*2; i++) e[i] = INF;
	e[1] = 0;
	q.push(make_pair(0,1));
	while (!q.empty()) {
		plusgoodlong x = -q.top().first;
		plusgoodlong s = q.top().second;
		q.pop();
		if (t[s]) continue;
		t[s] = 1;
		for (plusgoodlong i = 0; i < v[s].size(); i++) {
			plusgoodlong u = v[s][i].first;
			if (x+v[s][i].second < e[u]) {
				e[u] = x+v[s][i].second;
				q.push(make_pair(-e[u],u));
			}
		}
	}
	
	cout << min(e[n], e[2*n]) << endl;
	
	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: ACCEPTED

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

correct output
11893353673

user output
11893353673

Test 7

Group: 2

Verdict: ACCEPTED

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

correct output
30248963445

user output
30248963445

Test 8

Group: 2

Verdict: ACCEPTED

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

correct output
3126797692

user output
3126797692

Test 9

Group: 2

Verdict: ACCEPTED

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

correct output
18416073173

user output
18416073173

Test 10

Group: 2

Verdict: ACCEPTED

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

correct output
6399349335

user output
6399349335

Test 11

Group: 3

Verdict: ACCEPTED

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

correct output
518249578675

user output
518249578675

Test 12

Group: 3

Verdict: ACCEPTED

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

correct output
920862321580

user output
920862321580

Test 13

Group: 3

Verdict: ACCEPTED

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

correct output
399407698440

user output
399407698440

Test 14

Group: 3

Verdict: ACCEPTED

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

correct output
165235287505

user output
165235287505

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: ACCEPTED

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

correct output
1124960

user output
1124960

Test 17

Group: 3

Verdict: ACCEPTED

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

correct output
110298

user output
110298