Submission #412290

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
412290	2021-05-26T16:44:55 Z	amoo_safar	Arranging Tickets (JOI17_arranging_tickets)	C++17	100 / 100	199 ms	24348 KB

arranging_tickets

// vaziat meshki-ghermeze !
#include <bits/stdc++.h>

#define pb push_back
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

const int N = 4e5 + 10;

vector<pii> G[N];
int n, m;

void Add_Edge(int u, int v, int c){
	G[u].pb({v, c});
}

ll ps[N];

ll Solve(int l, int dif){
	int r = l + n;
	memset(ps, 0, sizeof ps);
	multiset<pii> ms;

	ll res = 0;
	for(int i = l; i < r - 1; i++){
		for(auto [x, c] : G[i]){
			if(x >= r) continue;
			ps[i] += c;
			ps[x] -= c;
			ms.insert({x, c});
		}
		ps[i] += ps[i - 1];
		while(ps[i] > dif){
			auto [fr, cnt] = *ms.rbegin();
			ms.erase(ms.find({fr, cnt}));
			if(fr <= i)
				continue;

			int del = min((ll) cnt, (ps[i] - dif + 1) / 2);
			
			ps[i] -= 2 * del;
			ps[fr] += 2 * del;
			res += del;
			if(cnt > del)
				ms.insert({fr, cnt - del});
		}
	}
	return res + dif;
}

ll df[N];

int main(){
	ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	cin >> n >> m;
	int a, b, c;
	for(int i = 0; i < m; i++){
		cin >> a >> b >> c;
		// assert(c == 1);
		if(a > b) swap(a, b);
		df[a] += c;
		df[b] -= c;
		
		Add_Edge(a, b, c);
		Add_Edge(b, n + a, c);
		Add_Edge(n + a, n + b, c);
	}
	for(int i = 1; i <= n; i++) df[i] += df[i - 1];
	int id_mx = max_element(df + 1, df + n) - df;
	id_mx ++;
	ll ans = min(Solve(id_mx, 0), Solve(id_mx, 1));

	cout << ans << '\n';
	return 0;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	7 ms	12748 KB	Output is correct
2	Correct	7 ms	12792 KB	Output is correct
3	Correct	7 ms	12756 KB	Output is correct
4	Correct	7 ms	12792 KB	Output is correct
5	Correct	9 ms	12832 KB	Output is correct
6	Correct	7 ms	12828 KB	Output is correct
7	Correct	7 ms	12748 KB	Output is correct
8	Correct	8 ms	12748 KB	Output is correct
9	Correct	8 ms	12788 KB	Output is correct
10	Correct	8 ms	12788 KB	Output is correct
11	Correct	7 ms	12748 KB	Output is correct
12	Correct	8 ms	12748 KB	Output is correct
13	Correct	8 ms	12748 KB	Output is correct
14	Correct	9 ms	12748 KB	Output is correct
15	Correct	8 ms	12840 KB	Output is correct

Subtask #2
35.0 / 35.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	7 ms	12748 KB	Output is correct
2	Correct	7 ms	12792 KB	Output is correct
3	Correct	7 ms	12756 KB	Output is correct
4	Correct	7 ms	12792 KB	Output is correct
5	Correct	9 ms	12832 KB	Output is correct
6	Correct	7 ms	12828 KB	Output is correct
7	Correct	7 ms	12748 KB	Output is correct
8	Correct	8 ms	12748 KB	Output is correct
9	Correct	8 ms	12788 KB	Output is correct
10	Correct	8 ms	12788 KB	Output is correct
11	Correct	7 ms	12748 KB	Output is correct
12	Correct	8 ms	12748 KB	Output is correct
13	Correct	8 ms	12748 KB	Output is correct
14	Correct	9 ms	12748 KB	Output is correct
15	Correct	8 ms	12840 KB	Output is correct
16	Correct	8 ms	12876 KB	Output is correct
17	Correct	8 ms	12824 KB	Output is correct
18	Correct	8 ms	12748 KB	Output is correct
19	Correct	8 ms	12868 KB	Output is correct
20	Correct	8 ms	12808 KB	Output is correct
21	Correct	9 ms	12748 KB	Output is correct
22	Correct	8 ms	12876 KB	Output is correct
23	Correct	8 ms	12856 KB	Output is correct
24	Correct	8 ms	12876 KB	Output is correct
25	Correct	8 ms	12876 KB	Output is correct
26	Correct	8 ms	12792 KB	Output is correct
27	Correct	9 ms	12876 KB	Output is correct

Subtask #3
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	7 ms	12748 KB	Output is correct
2	Correct	7 ms	12792 KB	Output is correct
3	Correct	7 ms	12756 KB	Output is correct
4	Correct	7 ms	12792 KB	Output is correct
5	Correct	9 ms	12832 KB	Output is correct
6	Correct	7 ms	12828 KB	Output is correct
7	Correct	7 ms	12748 KB	Output is correct
8	Correct	8 ms	12748 KB	Output is correct
9	Correct	8 ms	12788 KB	Output is correct
10	Correct	8 ms	12788 KB	Output is correct
11	Correct	7 ms	12748 KB	Output is correct
12	Correct	8 ms	12748 KB	Output is correct
13	Correct	8 ms	12748 KB	Output is correct
14	Correct	9 ms	12748 KB	Output is correct
15	Correct	8 ms	12840 KB	Output is correct
16	Correct	8 ms	12876 KB	Output is correct
17	Correct	8 ms	12824 KB	Output is correct
18	Correct	8 ms	12748 KB	Output is correct
19	Correct	8 ms	12868 KB	Output is correct
20	Correct	8 ms	12808 KB	Output is correct
21	Correct	9 ms	12748 KB	Output is correct
22	Correct	8 ms	12876 KB	Output is correct
23	Correct	8 ms	12856 KB	Output is correct
24	Correct	8 ms	12876 KB	Output is correct
25	Correct	8 ms	12876 KB	Output is correct
26	Correct	8 ms	12792 KB	Output is correct
27	Correct	9 ms	12876 KB	Output is correct
28	Correct	11 ms	13132 KB	Output is correct
29	Correct	15 ms	13132 KB	Output is correct
30	Correct	11 ms	13072 KB	Output is correct
31	Correct	10 ms	13056 KB	Output is correct
32	Correct	10 ms	13004 KB	Output is correct
33	Correct	10 ms	13132 KB	Output is correct
34	Correct	10 ms	13060 KB	Output is correct
35	Correct	11 ms	13140 KB	Output is correct
36	Correct	10 ms	13064 KB	Output is correct
37	Correct	11 ms	13132 KB	Output is correct
38	Correct	11 ms	13184 KB	Output is correct
39	Correct	11 ms	13192 KB	Output is correct

Subtask #4
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	7 ms	12748 KB	Output is correct
2	Correct	7 ms	12792 KB	Output is correct
3	Correct	7 ms	12756 KB	Output is correct
4	Correct	7 ms	12792 KB	Output is correct
5	Correct	9 ms	12832 KB	Output is correct
6	Correct	7 ms	12828 KB	Output is correct
7	Correct	7 ms	12748 KB	Output is correct
8	Correct	8 ms	12748 KB	Output is correct
9	Correct	8 ms	12788 KB	Output is correct
10	Correct	8 ms	12788 KB	Output is correct
11	Correct	7 ms	12748 KB	Output is correct
12	Correct	8 ms	12748 KB	Output is correct
13	Correct	8 ms	12748 KB	Output is correct
14	Correct	9 ms	12748 KB	Output is correct
15	Correct	8 ms	12840 KB	Output is correct
16	Correct	8 ms	12876 KB	Output is correct
17	Correct	8 ms	12824 KB	Output is correct
18	Correct	8 ms	12748 KB	Output is correct
19	Correct	8 ms	12868 KB	Output is correct
20	Correct	8 ms	12808 KB	Output is correct
21	Correct	9 ms	12748 KB	Output is correct
22	Correct	8 ms	12876 KB	Output is correct
23	Correct	8 ms	12856 KB	Output is correct
24	Correct	8 ms	12876 KB	Output is correct
25	Correct	8 ms	12876 KB	Output is correct
26	Correct	8 ms	12792 KB	Output is correct
27	Correct	9 ms	12876 KB	Output is correct
28	Correct	11 ms	13132 KB	Output is correct
29	Correct	15 ms	13132 KB	Output is correct
30	Correct	11 ms	13072 KB	Output is correct
31	Correct	10 ms	13056 KB	Output is correct
32	Correct	10 ms	13004 KB	Output is correct
33	Correct	10 ms	13132 KB	Output is correct
34	Correct	10 ms	13060 KB	Output is correct
35	Correct	11 ms	13140 KB	Output is correct
36	Correct	10 ms	13064 KB	Output is correct
37	Correct	11 ms	13132 KB	Output is correct
38	Correct	11 ms	13184 KB	Output is correct
39	Correct	11 ms	13192 KB	Output is correct
40	Correct	176 ms	23844 KB	Output is correct
41	Correct	184 ms	23848 KB	Output is correct
42	Correct	176 ms	23392 KB	Output is correct
43	Correct	160 ms	23440 KB	Output is correct
44	Correct	181 ms	23364 KB	Output is correct
45	Correct	162 ms	22916 KB	Output is correct
46	Correct	156 ms	22852 KB	Output is correct
47	Correct	152 ms	22932 KB	Output is correct
48	Correct	153 ms	22724 KB	Output is correct
49	Correct	124 ms	22044 KB	Output is correct
50	Correct	137 ms	24348 KB	Output is correct
51	Correct	130 ms	22544 KB	Output is correct

Subtask #5
15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	7 ms	12748 KB	Output is correct
2	Correct	7 ms	12792 KB	Output is correct
3	Correct	7 ms	12756 KB	Output is correct
4	Correct	7 ms	12792 KB	Output is correct
5	Correct	9 ms	12832 KB	Output is correct
6	Correct	7 ms	12828 KB	Output is correct
7	Correct	7 ms	12748 KB	Output is correct
8	Correct	8 ms	12748 KB	Output is correct
9	Correct	8 ms	12788 KB	Output is correct
10	Correct	8 ms	12788 KB	Output is correct
11	Correct	7 ms	12748 KB	Output is correct
12	Correct	8 ms	12748 KB	Output is correct
13	Correct	8 ms	12748 KB	Output is correct
14	Correct	9 ms	12748 KB	Output is correct
15	Correct	8 ms	12840 KB	Output is correct
16	Correct	8 ms	12876 KB	Output is correct
17	Correct	8 ms	12824 KB	Output is correct
18	Correct	8 ms	12748 KB	Output is correct
19	Correct	8 ms	12868 KB	Output is correct
20	Correct	8 ms	12808 KB	Output is correct
21	Correct	9 ms	12748 KB	Output is correct
22	Correct	8 ms	12876 KB	Output is correct
23	Correct	8 ms	12856 KB	Output is correct
24	Correct	8 ms	12876 KB	Output is correct
25	Correct	8 ms	12876 KB	Output is correct
26	Correct	8 ms	12792 KB	Output is correct
27	Correct	9 ms	12876 KB	Output is correct
28	Correct	11 ms	13132 KB	Output is correct
29	Correct	15 ms	13132 KB	Output is correct
30	Correct	11 ms	13072 KB	Output is correct
31	Correct	10 ms	13056 KB	Output is correct
32	Correct	10 ms	13004 KB	Output is correct
33	Correct	10 ms	13132 KB	Output is correct
34	Correct	10 ms	13060 KB	Output is correct
35	Correct	11 ms	13140 KB	Output is correct
36	Correct	10 ms	13064 KB	Output is correct
37	Correct	11 ms	13132 KB	Output is correct
38	Correct	11 ms	13184 KB	Output is correct
39	Correct	11 ms	13192 KB	Output is correct
40	Correct	176 ms	23844 KB	Output is correct
41	Correct	184 ms	23848 KB	Output is correct
42	Correct	176 ms	23392 KB	Output is correct
43	Correct	160 ms	23440 KB	Output is correct
44	Correct	181 ms	23364 KB	Output is correct
45	Correct	162 ms	22916 KB	Output is correct
46	Correct	156 ms	22852 KB	Output is correct
47	Correct	152 ms	22932 KB	Output is correct
48	Correct	153 ms	22724 KB	Output is correct
49	Correct	124 ms	22044 KB	Output is correct
50	Correct	137 ms	24348 KB	Output is correct
51	Correct	130 ms	22544 KB	Output is correct
52	Correct	191 ms	23828 KB	Output is correct
53	Correct	197 ms	23360 KB	Output is correct
54	Correct	199 ms	23876 KB	Output is correct
55	Correct	173 ms	23256 KB	Output is correct
56	Correct	176 ms	23232 KB	Output is correct
57	Correct	171 ms	22980 KB	Output is correct
58	Correct	171 ms	22984 KB	Output is correct
59	Correct	142 ms	21372 KB	Output is correct

Submission #412290

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 35.0 / 35.0

Subtask #3 20.0 / 20.0

Subtask #4 20.0 / 20.0

Subtask #5 15.0 / 15.0

Subtask #1
10.0 / 10.0

Subtask #2
35.0 / 35.0

Subtask #3
20.0 / 20.0

Subtask #4
20.0 / 20.0

Subtask #5
15.0 / 15.0