oj.uz

Submission #418204

# Submission time Handle Problem Language Result Execution time Memory
418204 2021-06-05T08:14:42 Z Kevin_Zhang_TW Arranging Tickets (JOI17_arranging_tickets) C++17
100 / 100
 3929 ms 19720 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb emplace_back
#define AI(i) begin(i), end(i)
template<class T> bool chmin(T &a, T b) { return b < a && (a = b, true); }
template<class T> bool chmax(T &a, T b) { return a < b && (a = b, true); }
#ifdef KEV
#define DE(args...) kout("[ " + string(#args) + " ] = ", args)
void kout() { cerr << endl; }
template<class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ', kout(b...); }
template<class T> void debug(T l, T r) { while (l != r) cerr << *l << " \n"[next(l)==r], ++l; }
#else
#define DE(...) 0
#define debug(...) 0
#endif

const int MAX_N = 300010;
const ll inf = 1ll << 55;

int n, m;

vector<pair<int,ll>> rc[MAX_N];

int32_t main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	cin >> n >> m;
	vector<tuple<int,int,int>> req(m);
	for (auto &[l, r, c] : req) {
		cin >> l >> r >> c;
		if (l > r) swap(l, r);
		//assert(c == 1);
	}

	vector<ll> sum(n + 10);

	for (auto [l, r, c] : req)
		sum[l] += c, sum[r] -= c;

	for (auto [l, r, c] : req) rc[l].pb(r, c);

	auto cal = [&](ll mx) {
		// first is right end, second is count
		priority_queue<pair<int,ll>> pq;
		vector<ll> pfsum(sum);

		ll use = 0;
		for (int i = 1;i <= n;++i) {
			for (auto [r, c] : rc[i]) 
				pq.emplace(r, c);

			pfsum[i] += pfsum[i-1];

			while (pfsum[i] > mx) {
				assert(pq.size());
				auto [r, c] = pq.top(); pq.pop();
				ll req = min(c, (pfsum[i] - mx + 1) / 2);
				use += req;
				pfsum[i] -= req * 2;
				pfsum[r] += req * 2;
				if (req < c) pq.emplace(r, c - req);
			}
		}

		return mx + use;
	};

	ll res = inf;

	for (int i : {0, 1}) {
		ll l = 0, r = inf, mid;
		while (l < r) {
			mid = l + r >> 1;
			ll x = (mid*2) + i, y = x + 2;
			if (cal(x) <= cal(y))
				r = mid;
			else
				l = mid+1;
		}
		chmin(res, cal(l*2 + i));
	}

//	for (int i = 0;i <= m;++i) {
//		chmin(res, cal(i));
//	}

	cout << res << '\n';
	
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7256 KB Output is correct
2 Correct 4 ms 7244 KB Output is correct
3 Correct 4 ms 7244 KB Output is correct
4 Correct 5 ms 7244 KB Output is correct
5 Correct 4 ms 7244 KB Output is correct
6 Correct 4 ms 7244 KB Output is correct
7 Correct 4 ms 7244 KB Output is correct
8 Correct 4 ms 7244 KB Output is correct
9 Correct 4 ms 7244 KB Output is correct
10 Correct 4 ms 7244 KB Output is correct
11 Correct 4 ms 7244 KB Output is correct
12 Correct 5 ms 7244 KB Output is correct
13 Correct 5 ms 7244 KB Output is correct
14 Correct 4 ms 7252 KB Output is correct
15 Correct 4 ms 7352 KB Output is correct

Subtask #2
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7256 KB Output is correct
2 Correct 4 ms 7244 KB Output is correct
3 Correct 4 ms 7244 KB Output is correct
4 Correct 5 ms 7244 KB Output is correct
5 Correct 4 ms 7244 KB Output is correct
6 Correct 4 ms 7244 KB Output is correct
7 Correct 4 ms 7244 KB Output is correct
8 Correct 4 ms 7244 KB Output is correct
9 Correct 4 ms 7244 KB Output is correct
10 Correct 4 ms 7244 KB Output is correct
11 Correct 4 ms 7244 KB Output is correct
12 Correct 5 ms 7244 KB Output is correct
13 Correct 5 ms 7244 KB Output is correct
14 Correct 4 ms 7252 KB Output is correct
15 Correct 4 ms 7352 KB Output is correct
16 Correct 6 ms 7276 KB Output is correct
17 Correct 6 ms 7388 KB Output is correct
18 Correct 6 ms 7372 KB Output is correct
19 Correct 7 ms 7372 KB Output is correct
20 Correct 6 ms 7372 KB Output is correct
21 Correct 7 ms 7292 KB Output is correct
22 Correct 6 ms 7372 KB Output is correct
23 Correct 7 ms 7372 KB Output is correct
24 Correct 6 ms 7372 KB Output is correct
25 Correct 6 ms 7372 KB Output is correct
26 Correct 6 ms 7372 KB Output is correct
27 Correct 6 ms 7372 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7256 KB Output is correct
2 Correct 4 ms 7244 KB Output is correct
3 Correct 4 ms 7244 KB Output is correct
4 Correct 5 ms 7244 KB Output is correct
5 Correct 4 ms 7244 KB Output is correct
6 Correct 4 ms 7244 KB Output is correct
7 Correct 4 ms 7244 KB Output is correct
8 Correct 4 ms 7244 KB Output is correct
9 Correct 4 ms 7244 KB Output is correct
10 Correct 4 ms 7244 KB Output is correct
11 Correct 4 ms 7244 KB Output is correct
12 Correct 5 ms 7244 KB Output is correct
13 Correct 5 ms 7244 KB Output is correct
14 Correct 4 ms 7252 KB Output is correct
15 Correct 4 ms 7352 KB Output is correct
16 Correct 6 ms 7276 KB Output is correct
17 Correct 6 ms 7388 KB Output is correct
18 Correct 6 ms 7372 KB Output is correct
19 Correct 7 ms 7372 KB Output is correct
20 Correct 6 ms 7372 KB Output is correct
21 Correct 7 ms 7292 KB Output is correct
22 Correct 6 ms 7372 KB Output is correct
23 Correct 7 ms 7372 KB Output is correct
24 Correct 6 ms 7372 KB Output is correct
25 Correct 6 ms 7372 KB Output is correct
26 Correct 6 ms 7372 KB Output is correct
27 Correct 6 ms 7372 KB Output is correct
28 Correct 29 ms 7628 KB Output is correct
29 Correct 30 ms 7628 KB Output is correct
30 Correct 29 ms 7628 KB Output is correct
31 Correct 29 ms 7632 KB Output is correct
32 Correct 28 ms 7632 KB Output is correct
33 Correct 29 ms 7628 KB Output is correct
34 Correct 28 ms 7632 KB Output is correct
35 Correct 28 ms 7628 KB Output is correct
36 Correct 29 ms 7628 KB Output is correct
37 Correct 29 ms 7628 KB Output is correct
38 Correct 22 ms 7628 KB Output is correct
39 Correct 23 ms 7628 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7256 KB Output is correct
2 Correct 4 ms 7244 KB Output is correct
3 Correct 4 ms 7244 KB Output is correct
4 Correct 5 ms 7244 KB Output is correct
5 Correct 4 ms 7244 KB Output is correct
6 Correct 4 ms 7244 KB Output is correct
7 Correct 4 ms 7244 KB Output is correct
8 Correct 4 ms 7244 KB Output is correct
9 Correct 4 ms 7244 KB Output is correct
10 Correct 4 ms 7244 KB Output is correct
11 Correct 4 ms 7244 KB Output is correct
12 Correct 5 ms 7244 KB Output is correct
13 Correct 5 ms 7244 KB Output is correct
14 Correct 4 ms 7252 KB Output is correct
15 Correct 4 ms 7352 KB Output is correct
16 Correct 6 ms 7276 KB Output is correct
17 Correct 6 ms 7388 KB Output is correct
18 Correct 6 ms 7372 KB Output is correct
19 Correct 7 ms 7372 KB Output is correct
20 Correct 6 ms 7372 KB Output is correct
21 Correct 7 ms 7292 KB Output is correct
22 Correct 6 ms 7372 KB Output is correct
23 Correct 7 ms 7372 KB Output is correct
24 Correct 6 ms 7372 KB Output is correct
25 Correct 6 ms 7372 KB Output is correct
26 Correct 6 ms 7372 KB Output is correct
27 Correct 6 ms 7372 KB Output is correct
28 Correct 29 ms 7628 KB Output is correct
29 Correct 30 ms 7628 KB Output is correct
30 Correct 29 ms 7628 KB Output is correct
31 Correct 29 ms 7632 KB Output is correct
32 Correct 28 ms 7632 KB Output is correct
33 Correct 29 ms 7628 KB Output is correct
34 Correct 28 ms 7632 KB Output is correct
35 Correct 28 ms 7628 KB Output is correct
36 Correct 29 ms 7628 KB Output is correct
37 Correct 29 ms 7628 KB Output is correct
38 Correct 22 ms 7628 KB Output is correct
39 Correct 23 ms 7628 KB Output is correct
40 Correct 2212 ms 18304 KB Output is correct
41 Correct 2249 ms 19668 KB Output is correct
42 Correct 2053 ms 19612 KB Output is correct
43 Correct 2276 ms 19584 KB Output is correct
44 Correct 2587 ms 19516 KB Output is correct
45 Correct 2424 ms 19364 KB Output is correct
46 Correct 2503 ms 18872 KB Output is correct
47 Correct 2460 ms 19096 KB Output is correct
48 Correct 2095 ms 19180 KB Output is correct
49 Correct 2087 ms 18160 KB Output is correct
50 Correct 1944 ms 18464 KB Output is correct
51 Correct 2005 ms 18040 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7256 KB Output is correct
2 Correct 4 ms 7244 KB Output is correct
3 Correct 4 ms 7244 KB Output is correct
4 Correct 5 ms 7244 KB Output is correct
5 Correct 4 ms 7244 KB Output is correct
6 Correct 4 ms 7244 KB Output is correct
7 Correct 4 ms 7244 KB Output is correct
8 Correct 4 ms 7244 KB Output is correct
9 Correct 4 ms 7244 KB Output is correct
10 Correct 4 ms 7244 KB Output is correct
11 Correct 4 ms 7244 KB Output is correct
12 Correct 5 ms 7244 KB Output is correct
13 Correct 5 ms 7244 KB Output is correct
14 Correct 4 ms 7252 KB Output is correct
15 Correct 4 ms 7352 KB Output is correct
16 Correct 6 ms 7276 KB Output is correct
17 Correct 6 ms 7388 KB Output is correct
18 Correct 6 ms 7372 KB Output is correct
19 Correct 7 ms 7372 KB Output is correct
20 Correct 6 ms 7372 KB Output is correct
21 Correct 7 ms 7292 KB Output is correct
22 Correct 6 ms 7372 KB Output is correct
23 Correct 7 ms 7372 KB Output is correct
24 Correct 6 ms 7372 KB Output is correct
25 Correct 6 ms 7372 KB Output is correct
26 Correct 6 ms 7372 KB Output is correct
27 Correct 6 ms 7372 KB Output is correct
28 Correct 29 ms 7628 KB Output is correct
29 Correct 30 ms 7628 KB Output is correct
30 Correct 29 ms 7628 KB Output is correct
31 Correct 29 ms 7632 KB Output is correct
32 Correct 28 ms 7632 KB Output is correct
33 Correct 29 ms 7628 KB Output is correct
34 Correct 28 ms 7632 KB Output is correct
35 Correct 28 ms 7628 KB Output is correct
36 Correct 29 ms 7628 KB Output is correct
37 Correct 29 ms 7628 KB Output is correct
38 Correct 22 ms 7628 KB Output is correct
39 Correct 23 ms 7628 KB Output is correct
40 Correct 2212 ms 18304 KB Output is correct
41 Correct 2249 ms 19668 KB Output is correct
42 Correct 2053 ms 19612 KB Output is correct
43 Correct 2276 ms 19584 KB Output is correct
44 Correct 2587 ms 19516 KB Output is correct
45 Correct 2424 ms 19364 KB Output is correct
46 Correct 2503 ms 18872 KB Output is correct
47 Correct 2460 ms 19096 KB Output is correct
48 Correct 2095 ms 19180 KB Output is correct
49 Correct 2087 ms 18160 KB Output is correct
50 Correct 1944 ms 18464 KB Output is correct
51 Correct 2005 ms 18040 KB Output is correct
52 Correct 3929 ms 19720 KB Output is correct
53 Correct 3415 ms 19260 KB Output is correct
54 Correct 3635 ms 19584 KB Output is correct
55 Correct 3573 ms 19392 KB Output is correct
56 Correct 3138 ms 19400 KB Output is correct
57 Correct 3369 ms 19096 KB Output is correct
58 Correct 3534 ms 19036 KB Output is correct
59 Correct 2082 ms 17752 KB Output is correct