CSES - Datatähti 2016 alku - Results
Submission details
Task:Lennot
Sender:juhoh
Submission time:2015-09-30 17:16:49
Language:C++
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED24
#2ACCEPTED37
#3ACCEPTED39
Test results
testverdicttimegroup
#1ACCEPTED0.06 s1details
#2ACCEPTED0.05 s1details
#3ACCEPTED0.06 s1details
#4ACCEPTED0.06 s1details
#5ACCEPTED0.05 s1details
#6ACCEPTED0.06 s2details
#7ACCEPTED0.06 s2details
#8ACCEPTED0.06 s2details
#9ACCEPTED0.06 s2details
#10ACCEPTED0.06 s2details
#11ACCEPTED0.35 s3details
#12ACCEPTED0.38 s3details
#13ACCEPTED0.36 s3details
#14ACCEPTED0.32 s3details
#15ACCEPTED0.20 s3details
#16ACCEPTED0.25 s3details
#17ACCEPTED0.32 s3details

Code

#include <iostream>
#include <algorithm>
#include <cstring>
#include <vector>
#include <queue>

using namespace std;

typedef signed long long int ll;

const int N = 100000;

vector<pair<ll, ll> > vertices[2*N];
priority_queue<pair<ll, ll>, vector<pair<ll, ll> >, greater<pair<ll, ll> > > todo;
ll visited[2*N], distances[2*N];

int main() {

    int n, m;
    
    cin >> n >> m;
    for (int i = 0; i < m; ++i) {
        int a, b, h;
        cin >> a >> b >> h;
        vertices[a-1].push_back(pair<ll, ll>(b-1+n, h));
        vertices[a-1+n].push_back(pair<ll, ll>(b-1, 0));
    }

    for (int i = 0; i < 2*n; i++) {
        distances[i] = 1000000000000000000LL;
    }

    distances[0] = 0;
    todo.push(make_pair(0,0));
    while (!todo.empty()) {

        ll dist = todo.top().first;
        ll s = todo.top().second;

        todo.pop();
        if (visited[s]) {
            continue;
        }
        visited[s] = 1;

        for (size_t i = 0; i < vertices[s].size(); i++) {

            ll u = vertices[s][i].first;

            if (dist + vertices[s][i].second < distances[u]) {
                distances[u] = dist + vertices[s][i].second;
                todo.push(make_pair(distances[u], u));
            }
        }
    }

    cout << min(distances[n-1], distances[2*n-1]) << 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