CSES - Datatähti 2016 alku - Results
Submission details
Task:Lennot
Sender:Pohjantahti
Submission time:2016-12-05 16:58:27
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
#5ACCEPTED0.06 s1details
#6ACCEPTED0.06 s2details
#70.06 s2details
#80.08 s2details
#90.05 s2details
#100.06 s2details
#110.33 s3details
#120.36 s3details
#130.34 s3details
#140.32 s3details
#15ACCEPTED0.23 s3details
#16ACCEPTED0.24 s3details
#170.32 s3details

Code

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

using namespace std;
typedef long long ll;
typedef pair<int, ll> ill;
typedef vector<ill> vill;
#define F first
#define S second
#define PB push_back
#define MP make_pair
#define INF 1e15+5
#define DE 100005

int n, m;
vill g[100005];
ll e[2*100005];
int z[100005];

int main() {
    cin >> n >> m;
    for (int i = 0; i < m; ++i) {
        int a, b, h;
        cin >> a >> b >> h;
        g[a].PB(MP(b, h));
    }
    for (int i = 1; i < 100005; ++i) {
        e[i] = INF;
        e[i+DE] = INF;
    }
    priority_queue<pair<ll, int>> q;
    e[1] = 0;
    q.push(MP(0, 1));
    while (!q.empty()) {
        int a = q.top().S;
        q.pop();
        if (z[a]) continue;
        z[a] = 1;
        for (auto b : g[a]) {
            ll d1 = e[a+DE];
            ll d2 = e[a] + b.S;
            if (d1 < e[b.F]) {
                e[b.F] = d1;
                z[a] = 0;
            }
            //e[b.F] = min(e[b.F], d1);
            if (d2 < e[(b.F)+DE]) {
                e[(b.F)+DE] = d2;
                z[a] = 0;
            }
            //e[(b.F)+DE] = min(e[(b.F)+DE], d2);
            q.push(MP(-min(e[b.F], e[(b.F)+DE]), b.F)); 
        }
    }
    cout << min(e[n], e[n+DE]) << "\n";
    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:

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

correct output
30248963445

user output
30529444989

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
3268705540

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
20264523094

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
549326646575

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
966619221894

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
420919836391

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
173635070451

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:

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

correct output
110298

user output
110579