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Submission #333013

# Submission time Handle Problem Language Result Execution time Memory
333013 2020-12-04T08:56:48 Z Cantfindme Relay Marathon (NOI20_relaymarathon) C++17
100 / 100
 3052 ms 204216 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
typedef pair<int,int> pi;
#define f first
#define s second
#define FAST ios_base::sync_with_stdio(0); cin.tie(0);
const int maxn = 100010;

typedef pair<int,pi> pp;
#define p(x,y,z) pp(x,pi(y,z))

int dist[maxn],col[maxn];
int special[maxn];
int n,m,k;

vector <int> specials;
vector <pi> adjlist[maxn];

int A = -1, B = -1;

int test(int excludea, int excludeb) {
	memset(dist,-1,sizeof dist);
	memset(col,-1,sizeof col);
	priority_queue <pi,vector<pi>,greater<pi>> pq;
	
	for (auto cur: specials) {
		if (cur == excludea or cur == excludeb) continue;
		pq.push(pi(0,cur));
		dist[cur] = 0;
		col[cur] = cur;
	}
	
	while (!pq.empty()) {
		pi cur = pq.top(); pq.pop();
		int x = cur.s, d = cur.f;
		//cout << "GO: " << x << " " << d << "\n";
		
		if (dist[x] != d) continue;
		
		for (auto i: adjlist[x]) {
			if (dist[i.f] == -1 or dist[i.f] > d + i.s) {
				dist[i.f] = d + i.s;
				col[i.f] = col[x];
				pq.push(pi(dist[i.f],i.f));
			}
		}
	}
	
	//cout << "NEW: " << excludea << " " << excludeb << "\n";
	//for (int i =1;i<=n;i++) {
		//cout << i << " " << dist[i] << " " << col[i] << "\n";
	//}
	
	pp ans = p(LLONG_MAX/2,0,0);
	
	for (int i = 1; i <= n;i++) {
		for (auto u: adjlist[i]) {
			if (col[i] != col[u.f] and col[i] != -1 and col[u.f] != -1) {
				if (dist[u.f] + dist[i] + u.s < ans.f) {
					ans = p(dist[u.f] + dist[i] + u.s, col[u.f], col[i]);
				}
			}
		}
	}
	
	//cout << "ANS: " << ans.f << " " << ans.s.f << " " << ans.s.s << "\n";
	
	if (excludea == -1 or excludeb == -1) {
		if (A == -1 and B == -1) {
			A = ans.s.f; B = ans.s.s;
		}
		return ans.f + test(ans.s.f, ans.s.s);
	} else return ans.f;
}

int32_t main() {
	FAST
	cin >> n >> m >> k;
	for (int i =0;i<m;i++) {
		int a,b,c; cin >> a >> b >> c;
		adjlist[a].push_back(pi(b,c));
		adjlist[b].push_back(pi(a,c));
	}
	
	for (int i =0;i<k;i++) {
		int x; cin >> x;
		special[x] = 1;
		specials.push_back(x);
	}
	int rans = LLONG_MAX/2;
		
	rans = min(rans,test(-1,-1));
	rans = min(rans,test(A,-1));
	rans = min(rans,test(B,-1));
	cout << rans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4204 KB Output is correct
2 Correct 4 ms 4332 KB Output is correct
3 Correct 3 ms 4204 KB Output is correct
4 Correct 3 ms 4204 KB Output is correct
5 Correct 3 ms 4204 KB Output is correct
6 Correct 4 ms 4204 KB Output is correct
7 Correct 4 ms 4332 KB Output is correct
8 Correct 4 ms 4332 KB Output is correct
9 Correct 3 ms 4204 KB Output is correct
10 Correct 3 ms 4204 KB Output is correct
11 Correct 52 ms 4204 KB Output is correct
12 Correct 3 ms 4204 KB Output is correct
13 Correct 4 ms 4332 KB Output is correct
14 Correct 5 ms 4332 KB Output is correct
15 Correct 37 ms 4460 KB Output is correct
16 Correct 3 ms 4204 KB Output is correct
17 Correct 4 ms 4332 KB Output is correct
18 Correct 36 ms 4332 KB Output is correct
19 Correct 4 ms 4332 KB Output is correct
20 Correct 3 ms 4332 KB Output is correct
21 Correct 3 ms 4332 KB Output is correct
22 Correct 4 ms 4204 KB Output is correct
23 Correct 4 ms 4332 KB Output is correct
24 Correct 3 ms 4204 KB Output is correct
25 Correct 3 ms 4204 KB Output is correct
26 Correct 38 ms 4204 KB Output is correct
27 Correct 3 ms 4204 KB Output is correct
28 Correct 4 ms 4332 KB Output is correct
29 Correct 4 ms 4332 KB Output is correct
30 Correct 4 ms 4332 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4204 KB Output is correct
2 Correct 4 ms 4332 KB Output is correct
3 Correct 3 ms 4204 KB Output is correct
4 Correct 3 ms 4204 KB Output is correct
5 Correct 3 ms 4204 KB Output is correct
6 Correct 4 ms 4204 KB Output is correct
7 Correct 4 ms 4332 KB Output is correct
8 Correct 4 ms 4332 KB Output is correct
9 Correct 3 ms 4204 KB Output is correct
10 Correct 3 ms 4204 KB Output is correct
11 Correct 52 ms 4204 KB Output is correct
12 Correct 3 ms 4204 KB Output is correct
13 Correct 4 ms 4332 KB Output is correct
14 Correct 5 ms 4332 KB Output is correct
15 Correct 37 ms 4460 KB Output is correct
16 Correct 3 ms 4204 KB Output is correct
17 Correct 4 ms 4332 KB Output is correct
18 Correct 36 ms 4332 KB Output is correct
19 Correct 4 ms 4332 KB Output is correct
20 Correct 3 ms 4332 KB Output is correct
21 Correct 3 ms 4332 KB Output is correct
22 Correct 4 ms 4204 KB Output is correct
23 Correct 4 ms 4332 KB Output is correct
24 Correct 3 ms 4204 KB Output is correct
25 Correct 3 ms 4204 KB Output is correct
26 Correct 38 ms 4204 KB Output is correct
27 Correct 3 ms 4204 KB Output is correct
28 Correct 4 ms 4332 KB Output is correct
29 Correct 4 ms 4332 KB Output is correct
30 Correct 4 ms 4332 KB Output is correct
31 Correct 5 ms 4332 KB Output is correct
32 Correct 5 ms 4332 KB Output is correct
33 Correct 4 ms 4332 KB Output is correct
34 Correct 37 ms 4332 KB Output is correct
35 Correct 3 ms 4204 KB Output is correct
36 Correct 6 ms 4588 KB Output is correct
37 Correct 40 ms 4716 KB Output is correct
38 Correct 37 ms 4332 KB Output is correct
39 Correct 35 ms 9856 KB Output is correct
40 Correct 11 ms 5632 KB Output is correct
41 Correct 4 ms 4332 KB Output is correct
42 Correct 11 ms 5632 KB Output is correct
43 Correct 5 ms 4460 KB Output is correct
44 Correct 4 ms 4332 KB Output is correct
45 Correct 3 ms 4332 KB Output is correct
46 Correct 39 ms 10092 KB Output is correct
47 Correct 9 ms 5100 KB Output is correct
48 Correct 76 ms 9804 KB Output is correct
49 Correct 34 ms 9836 KB Output is correct
50 Correct 38 ms 4332 KB Output is correct
51 Correct 5 ms 4332 KB Output is correct
52 Correct 4 ms 4332 KB Output is correct
53 Correct 21 ms 7148 KB Output is correct
54 Correct 37 ms 9964 KB Output is correct
55 Correct 4 ms 4332 KB Output is correct
56 Correct 4 ms 4332 KB Output is correct
57 Correct 4 ms 4332 KB Output is correct
58 Correct 80 ms 10348 KB Output is correct
59 Correct 3 ms 4204 KB Output is correct
60 Correct 5 ms 4332 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 202 ms 9736 KB Output is correct
2 Correct 12 ms 4972 KB Output is correct
3 Correct 2317 ms 163092 KB Output is correct
4 Correct 1273 ms 78832 KB Output is correct
5 Correct 486 ms 18384 KB Output is correct
6 Correct 391 ms 14788 KB Output is correct
7 Correct 522 ms 20100 KB Output is correct
8 Correct 192 ms 9804 KB Output is correct
9 Correct 355 ms 13980 KB Output is correct
10 Correct 282 ms 11112 KB Output is correct
11 Correct 2435 ms 172564 KB Output is correct
12 Correct 289 ms 11780 KB Output is correct
13 Correct 836 ms 49176 KB Output is correct
14 Correct 526 ms 21168 KB Output is correct
15 Correct 2438 ms 169528 KB Output is correct
16 Correct 122 ms 8740 KB Output is correct
17 Correct 1923 ms 124704 KB Output is correct
18 Correct 11 ms 5100 KB Output is correct
19 Correct 2783 ms 183308 KB Output is correct
20 Correct 497 ms 20020 KB Output is correct
21 Correct 465 ms 17348 KB Output is correct
22 Correct 241 ms 10904 KB Output is correct
23 Correct 37 ms 7532 KB Output is correct
24 Correct 1668 ms 134020 KB Output is correct
25 Correct 381 ms 14356 KB Output is correct
26 Correct 196 ms 9836 KB Output is correct
27 Correct 324 ms 12528 KB Output is correct
28 Correct 22 ms 6252 KB Output is correct
29 Correct 501 ms 19736 KB Output is correct
30 Correct 834 ms 39368 KB Output is correct

Subtask #4
58.0 / 58.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4204 KB Output is correct
2 Correct 4 ms 4332 KB Output is correct
3 Correct 3 ms 4204 KB Output is correct
4 Correct 3 ms 4204 KB Output is correct
5 Correct 3 ms 4204 KB Output is correct
6 Correct 4 ms 4204 KB Output is correct
7 Correct 4 ms 4332 KB Output is correct
8 Correct 4 ms 4332 KB Output is correct
9 Correct 3 ms 4204 KB Output is correct
10 Correct 3 ms 4204 KB Output is correct
11 Correct 52 ms 4204 KB Output is correct
12 Correct 3 ms 4204 KB Output is correct
13 Correct 4 ms 4332 KB Output is correct
14 Correct 5 ms 4332 KB Output is correct
15 Correct 37 ms 4460 KB Output is correct
16 Correct 3 ms 4204 KB Output is correct
17 Correct 4 ms 4332 KB Output is correct
18 Correct 36 ms 4332 KB Output is correct
19 Correct 4 ms 4332 KB Output is correct
20 Correct 3 ms 4332 KB Output is correct
21 Correct 3 ms 4332 KB Output is correct
22 Correct 4 ms 4204 KB Output is correct
23 Correct 4 ms 4332 KB Output is correct
24 Correct 3 ms 4204 KB Output is correct
25 Correct 3 ms 4204 KB Output is correct
26 Correct 38 ms 4204 KB Output is correct
27 Correct 3 ms 4204 KB Output is correct
28 Correct 4 ms 4332 KB Output is correct
29 Correct 4 ms 4332 KB Output is correct
30 Correct 4 ms 4332 KB Output is correct
31 Correct 5 ms 4332 KB Output is correct
32 Correct 5 ms 4332 KB Output is correct
33 Correct 4 ms 4332 KB Output is correct
34 Correct 37 ms 4332 KB Output is correct
35 Correct 3 ms 4204 KB Output is correct
36 Correct 6 ms 4588 KB Output is correct
37 Correct 40 ms 4716 KB Output is correct
38 Correct 37 ms 4332 KB Output is correct
39 Correct 35 ms 9856 KB Output is correct
40 Correct 11 ms 5632 KB Output is correct
41 Correct 4 ms 4332 KB Output is correct
42 Correct 11 ms 5632 KB Output is correct
43 Correct 5 ms 4460 KB Output is correct
44 Correct 4 ms 4332 KB Output is correct
45 Correct 3 ms 4332 KB Output is correct
46 Correct 39 ms 10092 KB Output is correct
47 Correct 9 ms 5100 KB Output is correct
48 Correct 76 ms 9804 KB Output is correct
49 Correct 34 ms 9836 KB Output is correct
50 Correct 38 ms 4332 KB Output is correct
51 Correct 5 ms 4332 KB Output is correct
52 Correct 4 ms 4332 KB Output is correct
53 Correct 21 ms 7148 KB Output is correct
54 Correct 37 ms 9964 KB Output is correct
55 Correct 4 ms 4332 KB Output is correct
56 Correct 4 ms 4332 KB Output is correct
57 Correct 4 ms 4332 KB Output is correct
58 Correct 80 ms 10348 KB Output is correct
59 Correct 3 ms 4204 KB Output is correct
60 Correct 5 ms 4332 KB Output is correct
61 Correct 202 ms 9736 KB Output is correct
62 Correct 12 ms 4972 KB Output is correct
63 Correct 2317 ms 163092 KB Output is correct
64 Correct 1273 ms 78832 KB Output is correct
65 Correct 486 ms 18384 KB Output is correct
66 Correct 391 ms 14788 KB Output is correct
67 Correct 522 ms 20100 KB Output is correct
68 Correct 192 ms 9804 KB Output is correct
69 Correct 355 ms 13980 KB Output is correct
70 Correct 282 ms 11112 KB Output is correct
71 Correct 2435 ms 172564 KB Output is correct
72 Correct 289 ms 11780 KB Output is correct
73 Correct 836 ms 49176 KB Output is correct
74 Correct 526 ms 21168 KB Output is correct
75 Correct 2438 ms 169528 KB Output is correct
76 Correct 122 ms 8740 KB Output is correct
77 Correct 1923 ms 124704 KB Output is correct
78 Correct 11 ms 5100 KB Output is correct
79 Correct 2783 ms 183308 KB Output is correct
80 Correct 497 ms 20020 KB Output is correct
81 Correct 465 ms 17348 KB Output is correct
82 Correct 241 ms 10904 KB Output is correct
83 Correct 37 ms 7532 KB Output is correct
84 Correct 1668 ms 134020 KB Output is correct
85 Correct 381 ms 14356 KB Output is correct
86 Correct 196 ms 9836 KB Output is correct
87 Correct 324 ms 12528 KB Output is correct
88 Correct 22 ms 6252 KB Output is correct
89 Correct 501 ms 19736 KB Output is correct
90 Correct 834 ms 39368 KB Output is correct
91 Correct 348 ms 13292 KB Output is correct
92 Correct 2527 ms 186424 KB Output is correct
93 Correct 522 ms 20460 KB Output is correct
94 Correct 1867 ms 116072 KB Output is correct
95 Correct 11 ms 4972 KB Output is correct
96 Correct 13 ms 5228 KB Output is correct
97 Correct 624 ms 28364 KB Output is correct
98 Correct 336 ms 13224 KB Output is correct
99 Correct 382 ms 14572 KB Output is correct
100 Correct 2918 ms 204216 KB Output is correct
101 Correct 1402 ms 79328 KB Output is correct
102 Correct 1344 ms 78344 KB Output is correct
103 Correct 1775 ms 138892 KB Output is correct
104 Correct 2476 ms 161756 KB Output is correct
105 Correct 203 ms 9964 KB Output is correct
106 Correct 1943 ms 143132 KB Output is correct
107 Correct 906 ms 42548 KB Output is correct
108 Correct 481 ms 18780 KB Output is correct
109 Correct 30 ms 6636 KB Output is correct
110 Correct 155 ms 9348 KB Output is correct
111 Correct 490 ms 19304 KB Output is correct
112 Correct 2890 ms 203352 KB Output is correct
113 Correct 3052 ms 203972 KB Output is correct
114 Correct 506 ms 18368 KB Output is correct
115 Correct 1139 ms 70964 KB Output is correct
116 Correct 2627 ms 182376 KB Output is correct
117 Correct 1840 ms 136032 KB Output is correct
118 Correct 1756 ms 123600 KB Output is correct
119 Correct 2703 ms 165592 KB Output is correct
120 Correct 1899 ms 102168 KB Output is correct