Submission #544930

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
544930	2022-04-03T07:23:51 Z	benson1029	Reconstruction Project (JOI22_reconstruction)	C++14	7 / 100	5000 ms	816024 KB

reconstruction

#include<bits/stdc++.h>
using namespace std;

int n,m,q,w;
pair< int, pair<int,int> > ed[100005];
vector<int> used[100005], used2[100005], v[100005];
int dsu[505];

int find(int x) {
	if(dsu[x]==x) return x;
	else return dsu[x] = find(dsu[x]);
}

void merge(int x, int y) {
	dsu[find(x)] = find(y);
}

bool cmp(int x, int y) {
	return abs(w-ed[x].first) < abs(w-ed[y].first);
}

int main() {
	ios::sync_with_stdio(false);
	cin >> n >> m;
	for(int i=0; i<m; i++) {
		cin >> ed[i].second.first >> ed[i].second.second >> ed[i].first;
	}
	sort(ed, ed+m);
	for(int i=1; i<=m; i++) {
		for(int j=1; j<=n; j++) dsu[j] = j;
		used[i].push_back(i-1);
		merge(ed[i-1].second.first, ed[i-1].second.second);
		for(int j:used[i-1]) {
			if(find(ed[j].second.first) != find(ed[j].second.second)) {
				merge(ed[j].second.first, ed[j].second.second);
				used[i].push_back(j);
			}
		}
	}
	for(int i=m-1; i>=0; i--) {
		for(int j=1; j<=n; j++) dsu[j] = j;
		used2[i].push_back(i);
		merge(ed[i].second.first, ed[i].second.second);
		for(int j:used2[i+1]) {
			if(find(ed[j].second.first) != find(ed[j].second.second)) {
				merge(ed[j].second.first, ed[j].second.second);
				used2[i].push_back(j);
			}
		}
	}
	for(int i=0; i<=m; i++) {
		for(int j:used[i]) v[i].push_back(j);
		for(int j:used2[i]) v[i].push_back(j);
	}
	cin >> q;
	while(q--) {
		cin >> w;
		int pos = upper_bound(ed, ed+m, make_pair(w, make_pair((int)1e9, (int)1e9))) - ed;
		sort(v[pos].begin(), v[pos].end(), cmp);
		for(int i=1; i<=n; i++) dsu[i] = i;
		long long ans = 0;
		for(int i:v[pos]) {
			if(find(ed[i].second.first) != find(ed[i].second.second)) {
				ans += abs(w-ed[i].first);
				merge(ed[i].second.first, ed[i].second.second);
			}
		}
		cout << ans << "\n";
	}
}

Subtask #1
3.0 / 3.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	7252 KB	Output is correct
2	Correct	4 ms	7252 KB	Output is correct
3	Correct	6 ms	7348 KB	Output is correct
4	Correct	4 ms	7252 KB	Output is correct
5	Correct	4 ms	7252 KB	Output is correct
6	Correct	4 ms	7380 KB	Output is correct
7	Correct	4 ms	7252 KB	Output is correct
8	Correct	4 ms	7380 KB	Output is correct
9	Correct	4 ms	7252 KB	Output is correct
10	Correct	4 ms	7252 KB	Output is correct
11	Correct	4 ms	7252 KB	Output is correct
12	Correct	4 ms	7252 KB	Output is correct
13	Correct	4 ms	7280 KB	Output is correct
14	Correct	5 ms	7252 KB	Output is correct
15	Correct	4 ms	7252 KB	Output is correct
16	Correct	6 ms	7280 KB	Output is correct
17	Correct	4 ms	7252 KB	Output is correct
18	Correct	4 ms	7380 KB	Output is correct

Subtask #2
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	7252 KB	Output is correct
2	Correct	4 ms	7252 KB	Output is correct
3	Correct	6 ms	7348 KB	Output is correct
4	Correct	4 ms	7252 KB	Output is correct
5	Correct	4 ms	7252 KB	Output is correct
6	Correct	4 ms	7380 KB	Output is correct
7	Correct	4 ms	7252 KB	Output is correct
8	Correct	4 ms	7380 KB	Output is correct
9	Correct	4 ms	7252 KB	Output is correct
10	Correct	4 ms	7252 KB	Output is correct
11	Correct	4 ms	7252 KB	Output is correct
12	Correct	4 ms	7252 KB	Output is correct
13	Correct	4 ms	7280 KB	Output is correct
14	Correct	5 ms	7252 KB	Output is correct
15	Correct	4 ms	7252 KB	Output is correct
16	Correct	6 ms	7280 KB	Output is correct
17	Correct	4 ms	7252 KB	Output is correct
18	Correct	4 ms	7380 KB	Output is correct
19	Correct	4 ms	7252 KB	Output is correct
20	Correct	3784 ms	814376 KB	Output is correct
21	Correct	2946 ms	813964 KB	Output is correct
22	Correct	3089 ms	813936 KB	Output is correct
23	Correct	3104 ms	813964 KB	Output is correct
24	Correct	3442 ms	813908 KB	Output is correct
25	Correct	3919 ms	814044 KB	Output is correct
26	Correct	3785 ms	815720 KB	Output is correct
27	Correct	3775 ms	815524 KB	Output is correct
28	Correct	3723 ms	815712 KB	Output is correct
29	Correct	3492 ms	812660 KB	Output is correct
30	Correct	3774 ms	815684 KB	Output is correct
31	Correct	3755 ms	816024 KB	Output is correct
32	Correct	3728 ms	815840 KB	Output is correct
33	Correct	3728 ms	814128 KB	Output is correct
34	Correct	2796 ms	785928 KB	Output is correct
35	Correct	3611 ms	815704 KB	Output is correct

Subtask #3
0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	7252 KB	Output is correct
2	Correct	4 ms	7252 KB	Output is correct
3	Correct	4 ms	7252 KB	Output is correct
4	Execution timed out	5085 ms	814804 KB	Time limit exceeded
5	Halted	0 ms	0 KB	-

Subtask #4
0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	7252 KB	Output is correct
2	Correct	4 ms	7252 KB	Output is correct
3	Correct	6 ms	7348 KB	Output is correct
4	Correct	4 ms	7252 KB	Output is correct
5	Correct	4 ms	7252 KB	Output is correct
6	Correct	4 ms	7380 KB	Output is correct
7	Correct	4 ms	7252 KB	Output is correct
8	Correct	4 ms	7380 KB	Output is correct
9	Correct	4 ms	7252 KB	Output is correct
10	Correct	4 ms	7252 KB	Output is correct
11	Correct	4 ms	7252 KB	Output is correct
12	Correct	4 ms	7252 KB	Output is correct
13	Correct	4 ms	7280 KB	Output is correct
14	Correct	5 ms	7252 KB	Output is correct
15	Correct	4 ms	7252 KB	Output is correct
16	Correct	6 ms	7280 KB	Output is correct
17	Correct	4 ms	7252 KB	Output is correct
18	Correct	4 ms	7380 KB	Output is correct
19	Correct	3 ms	7252 KB	Output is correct
20	Execution timed out	5057 ms	17324 KB	Time limit exceeded
21	Halted	0 ms	0 KB	-

Subtask #5
0 / 35.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	7252 KB	Output is correct
2	Correct	4 ms	7252 KB	Output is correct
3	Correct	6 ms	7348 KB	Output is correct
4	Correct	4 ms	7252 KB	Output is correct
5	Correct	4 ms	7252 KB	Output is correct
6	Correct	4 ms	7380 KB	Output is correct
7	Correct	4 ms	7252 KB	Output is correct
8	Correct	4 ms	7380 KB	Output is correct
9	Correct	4 ms	7252 KB	Output is correct
10	Correct	4 ms	7252 KB	Output is correct
11	Correct	4 ms	7252 KB	Output is correct
12	Correct	4 ms	7252 KB	Output is correct
13	Correct	4 ms	7280 KB	Output is correct
14	Correct	5 ms	7252 KB	Output is correct
15	Correct	4 ms	7252 KB	Output is correct
16	Correct	6 ms	7280 KB	Output is correct
17	Correct	4 ms	7252 KB	Output is correct
18	Correct	4 ms	7380 KB	Output is correct
19	Correct	4 ms	7252 KB	Output is correct
20	Correct	3784 ms	814376 KB	Output is correct
21	Correct	2946 ms	813964 KB	Output is correct
22	Correct	3089 ms	813936 KB	Output is correct
23	Correct	3104 ms	813964 KB	Output is correct
24	Correct	3442 ms	813908 KB	Output is correct
25	Correct	3919 ms	814044 KB	Output is correct
26	Correct	3785 ms	815720 KB	Output is correct
27	Correct	3775 ms	815524 KB	Output is correct
28	Correct	3723 ms	815712 KB	Output is correct
29	Correct	3492 ms	812660 KB	Output is correct
30	Correct	3774 ms	815684 KB	Output is correct
31	Correct	3755 ms	816024 KB	Output is correct
32	Correct	3728 ms	815840 KB	Output is correct
33	Correct	3728 ms	814128 KB	Output is correct
34	Correct	2796 ms	785928 KB	Output is correct
35	Correct	3611 ms	815704 KB	Output is correct
36	Execution timed out	5085 ms	814512 KB	Time limit exceeded
37	Halted	0 ms	0 KB	-

Subtask #6
0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	7252 KB	Output is correct
2	Correct	4 ms	7252 KB	Output is correct
3	Correct	6 ms	7348 KB	Output is correct
4	Correct	4 ms	7252 KB	Output is correct
5	Correct	4 ms	7252 KB	Output is correct
6	Correct	4 ms	7380 KB	Output is correct
7	Correct	4 ms	7252 KB	Output is correct
8	Correct	4 ms	7380 KB	Output is correct
9	Correct	4 ms	7252 KB	Output is correct
10	Correct	4 ms	7252 KB	Output is correct
11	Correct	4 ms	7252 KB	Output is correct
12	Correct	4 ms	7252 KB	Output is correct
13	Correct	4 ms	7280 KB	Output is correct
14	Correct	5 ms	7252 KB	Output is correct
15	Correct	4 ms	7252 KB	Output is correct
16	Correct	6 ms	7280 KB	Output is correct
17	Correct	4 ms	7252 KB	Output is correct
18	Correct	4 ms	7380 KB	Output is correct
19	Correct	4 ms	7252 KB	Output is correct
20	Correct	3784 ms	814376 KB	Output is correct
21	Correct	2946 ms	813964 KB	Output is correct
22	Correct	3089 ms	813936 KB	Output is correct
23	Correct	3104 ms	813964 KB	Output is correct
24	Correct	3442 ms	813908 KB	Output is correct
25	Correct	3919 ms	814044 KB	Output is correct
26	Correct	3785 ms	815720 KB	Output is correct
27	Correct	3775 ms	815524 KB	Output is correct
28	Correct	3723 ms	815712 KB	Output is correct
29	Correct	3492 ms	812660 KB	Output is correct
30	Correct	3774 ms	815684 KB	Output is correct
31	Correct	3755 ms	816024 KB	Output is correct
32	Correct	3728 ms	815840 KB	Output is correct
33	Correct	3728 ms	814128 KB	Output is correct
34	Correct	2796 ms	785928 KB	Output is correct
35	Correct	3611 ms	815704 KB	Output is correct
36	Correct	3 ms	7252 KB	Output is correct
37	Correct	4 ms	7252 KB	Output is correct
38	Correct	4 ms	7252 KB	Output is correct
39	Execution timed out	5085 ms	814804 KB	Time limit exceeded
40	Halted	0 ms	0 KB	-

Submission #544930

Compilation message

Subtask #1 3.0 / 3.0

Subtask #2 4.0 / 4.0

Subtask #3 0 / 7.0

Subtask #4 0 / 28.0

Subtask #5 0 / 35.0

Subtask #6 0 / 23.0

Subtask #1
3.0 / 3.0

Subtask #2
4.0 / 4.0

Subtask #3
0 / 7.0

Subtask #4
0 / 28.0

Subtask #5
0 / 35.0

Subtask #6
0 / 23.0