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답안 #542000

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
542000 2022-03-25T03:40:15 Z skittles1412 The short shank; Redemption (BOI21_prison) C++17
100 / 100
 1822 ms 158928 KB 
#include "bits/extc++.h"

using namespace std;

template <typename T>
void dbgh(const T& t) {
	cerr << t << endl;
}

template <typename T, typename... U>
void dbgh(const T& t, const U&... u) {
	cerr << t << " | ";
	dbgh(u...);
}

#ifdef DEBUG
#define dbg(...)                                           \
	cerr << "L" << __LINE__ << " [" << #__VA_ARGS__ << "]" \
		 << ": ";                                          \
	dbgh(__VA_ARGS__)
#else
#define cerr   \
	if (false) \
	cerr
#define dbg(...)
#endif

#define endl "\n"
#define long int64_t
#define sz(x) int((x).size())

struct ST {
	int n;
	vector<int> lazy;
	vector<long> v;

	ST(int n) : n(n), lazy(4 * n), v(4 * n) {
		build(1, 0, n - 1);
	}

	void build(int o, int l, int r) {
		if (l == r) {
			v[o] = l;
		} else {
			int mid = (l + r) / 2, lc = o * 2, rc = lc + 1;
			build(lc, l, mid);
			build(rc, mid + 1, r);
			v[o] = v[rc];
		}
	}

	void update(int o, int l, int r, int ql, int qr, bool sub) {
		if (ql <= l && r <= qr) {
			if (sub) {
				v[o] -= long(1) << 30;
				lazy[o]--;
			} else {
				v[o] += long(1) << 30;
				lazy[o]++;
			}
		} else {
			int mid = (l + r) / 2, lc = o * 2, rc = lc + 1;
			if (ql <= mid) {
				update(lc, l, mid, ql, qr, sub);
			}
			if (mid < qr) {
				update(rc, mid + 1, r, ql, qr, sub);
			}
			v[o] = max(v[lc], v[rc]);
			v[o] += long(lazy[o]) << 30;
		}
	}

	long query(int o, int l, int r, int ql, int qr) const {
		if (ql <= l && r <= qr) {
			return v[o];
		} else {
			int mid = (l + r) / 2, lc = o * 2, rc = lc + 1;
			long ans = -1;
			if (ql <= mid) {
				ans = max(ans, query(lc, l, mid, ql, qr));
			}
			if (mid < qr) {
				ans = max(ans, query(rc, mid + 1, r, ql, qr));
			}
			ans += long(lazy[o]) << 30;
			return ans;
		}
	}

	void add(int l, int r, int x) {
		update(1, 0, n - 1, l, r, x == -1);
	}

	pair<int, int> query(int l, int r) const {
		long ans = query(1, 0, n - 1, l, r);
		return {ans >> 30, ans & ((1 << 30) - 1)};
	}
};

namespace st1 {

const int maxn = 1 << 21;

pair<int, int> v[maxn * 2];

void set(int ind, int x) {
	ind += maxn;
	v[ind].first = x;
	while (ind > 1) {
		v[ind >> 1] = min(v[ind], v[ind ^ 1]);
		ind >>= 1;
	}
}

pair<int, int> query(int l, int r) {
	pair<int, int> ans {int(1e9), -1};
	l += maxn;
	r += maxn;
	while (l < r) {
		if (l & 1) {
			ans = min(ans, v[l++]);
		}
		if (r & 1) {
			ans = min(ans, v[--r]);
		}
		l >>= 1;
		r >>= 1;
	}
	return ans;
}

void init(const vector<int>& arr) {
	fill(begin(v), end(v), pair<int, int> {int(1e9), -1});
	for (int i = 0; i < maxn; i++) {
		v[i + maxn].second = i;
	}
	for (int i = 0; i < sz(arr); i++) {
		set(i, arr[i]);
	}
}

}  // namespace st1

void solve() {
	int n, d, t;
	cin >> n >> d >> t;
	int arr[n];
	for (auto& a : arr) {
		cin >> a;
	}
	int ans = 0;
	vector<int> start(n, n);
	vector<pair<int, int>> st, segs;
	for (int i = 0; i < n; i++) {
		if (t < arr[i]) {
			while (sz(st) && st.back().second < i) {
				st.pop_back();
			}
			if (sz(st)) {
				start[i - 1] = st.back().first;
				segs.emplace_back(st.back().first, i - 1);
			}
		} else {
			ans++;
			st.emplace_back(i, i + t - arr[i]);
		}
	}
	ST cnts(n);
	st1::init(start);
	for (auto& [l, r] : segs) {
		dbg(l, r);
		cnts.add(l, r, 1);
	}
	ans += sz(segs);
	for (int i = 0; i < d; i++) {
		int ci = cnts.query(0, n - 1).second;
		dbg(ci);
		while (true) {
			auto [l, r] = st1::query(ci, n - 1);
			dbg(l, r);
			if (l <= ci && ci <= r) {
				ans--;
				st1::set(r, n);
				cnts.add(l, r, -1);
			} else {
				break;
			}
		}
	}
	cout << ans << endl;
}

int main() {
	cin.tie(nullptr);
	ios_base::sync_with_stdio(false);
	cin.exceptions(ios::failbit);
	solve();
}

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 21 ms 33100 KB Output is correct
2 Correct 19 ms 33112 KB Output is correct
3 Correct 18 ms 33096 KB Output is correct
4 Correct 18 ms 33148 KB Output is correct
5 Correct 19 ms 33076 KB Output is correct
6 Correct 18 ms 33108 KB Output is correct
7 Correct 22 ms 33096 KB Output is correct
8 Correct 19 ms 33088 KB Output is correct
9 Correct 18 ms 33108 KB Output is correct
10 Correct 21 ms 33108 KB Output is correct
11 Correct 19 ms 33184 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 33108 KB Output is correct
2 Correct 157 ms 65080 KB Output is correct
3 Correct 139 ms 64952 KB Output is correct
4 Correct 164 ms 64768 KB Output is correct
5 Correct 152 ms 63652 KB Output is correct
6 Correct 171 ms 62760 KB Output is correct
7 Correct 476 ms 64972 KB Output is correct
8 Correct 186 ms 63152 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 21 ms 33100 KB Output is correct
2 Correct 19 ms 33112 KB Output is correct
3 Correct 18 ms 33096 KB Output is correct
4 Correct 18 ms 33148 KB Output is correct
5 Correct 19 ms 33076 KB Output is correct
6 Correct 18 ms 33108 KB Output is correct
7 Correct 22 ms 33096 KB Output is correct
8 Correct 19 ms 33088 KB Output is correct
9 Correct 18 ms 33108 KB Output is correct
10 Correct 21 ms 33108 KB Output is correct
11 Correct 19 ms 33184 KB Output is correct
12 Correct 18 ms 33096 KB Output is correct
13 Correct 18 ms 33092 KB Output is correct
14 Correct 19 ms 33072 KB Output is correct
15 Correct 18 ms 33236 KB Output is correct
16 Correct 19 ms 33108 KB Output is correct
17 Correct 19 ms 33108 KB Output is correct
18 Correct 18 ms 33088 KB Output is correct
19 Correct 18 ms 33108 KB Output is correct
20 Correct 19 ms 33168 KB Output is correct
21 Correct 19 ms 33128 KB Output is correct
22 Correct 19 ms 33080 KB Output is correct
23 Correct 20 ms 33364 KB Output is correct
24 Correct 20 ms 33408 KB Output is correct
25 Correct 20 ms 33364 KB Output is correct
26 Correct 24 ms 33428 KB Output is correct
27 Correct 20 ms 33364 KB Output is correct
28 Correct 20 ms 33328 KB Output is correct
29 Correct 20 ms 33392 KB Output is correct
30 Correct 21 ms 33308 KB Output is correct
31 Correct 20 ms 33376 KB Output is correct
32 Correct 23 ms 33388 KB Output is correct
33 Correct 21 ms 33352 KB Output is correct
34 Correct 19 ms 33364 KB Output is correct
35 Correct 20 ms 33460 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 33064 KB Output is correct
2 Correct 41 ms 38212 KB Output is correct
3 Correct 38 ms 38192 KB Output is correct
4 Correct 61 ms 38092 KB Output is correct
5 Correct 68 ms 38228 KB Output is correct
6 Correct 70 ms 38344 KB Output is correct
7 Correct 40 ms 37816 KB Output is correct
8 Correct 47 ms 37868 KB Output is correct
9 Correct 92 ms 38232 KB Output is correct
10 Correct 35 ms 37828 KB Output is correct

Subtask #5
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 21 ms 33100 KB Output is correct
2 Correct 19 ms 33112 KB Output is correct
3 Correct 18 ms 33096 KB Output is correct
4 Correct 18 ms 33148 KB Output is correct
5 Correct 19 ms 33076 KB Output is correct
6 Correct 18 ms 33108 KB Output is correct
7 Correct 22 ms 33096 KB Output is correct
8 Correct 19 ms 33088 KB Output is correct
9 Correct 18 ms 33108 KB Output is correct
10 Correct 21 ms 33108 KB Output is correct
11 Correct 19 ms 33184 KB Output is correct
12 Correct 18 ms 33096 KB Output is correct
13 Correct 18 ms 33092 KB Output is correct
14 Correct 19 ms 33072 KB Output is correct
15 Correct 18 ms 33236 KB Output is correct
16 Correct 19 ms 33108 KB Output is correct
17 Correct 19 ms 33108 KB Output is correct
18 Correct 18 ms 33088 KB Output is correct
19 Correct 18 ms 33108 KB Output is correct
20 Correct 19 ms 33168 KB Output is correct
21 Correct 19 ms 33128 KB Output is correct
22 Correct 19 ms 33080 KB Output is correct
23 Correct 20 ms 33364 KB Output is correct
24 Correct 20 ms 33408 KB Output is correct
25 Correct 20 ms 33364 KB Output is correct
26 Correct 24 ms 33428 KB Output is correct
27 Correct 20 ms 33364 KB Output is correct
28 Correct 20 ms 33328 KB Output is correct
29 Correct 20 ms 33392 KB Output is correct
30 Correct 21 ms 33308 KB Output is correct
31 Correct 20 ms 33376 KB Output is correct
32 Correct 23 ms 33388 KB Output is correct
33 Correct 21 ms 33352 KB Output is correct
34 Correct 19 ms 33364 KB Output is correct
35 Correct 20 ms 33460 KB Output is correct
36 Correct 23 ms 33064 KB Output is correct
37 Correct 41 ms 38212 KB Output is correct
38 Correct 38 ms 38192 KB Output is correct
39 Correct 61 ms 38092 KB Output is correct
40 Correct 68 ms 38228 KB Output is correct
41 Correct 70 ms 38344 KB Output is correct
42 Correct 40 ms 37816 KB Output is correct
43 Correct 47 ms 37868 KB Output is correct
44 Correct 92 ms 38232 KB Output is correct
45 Correct 35 ms 37828 KB Output is correct
46 Correct 18 ms 33128 KB Output is correct
47 Correct 19 ms 33108 KB Output is correct
48 Correct 18 ms 33144 KB Output is correct
49 Correct 21 ms 33124 KB Output is correct
50 Correct 19 ms 33076 KB Output is correct
51 Correct 19 ms 33184 KB Output is correct
52 Correct 20 ms 33108 KB Output is correct
53 Correct 19 ms 33176 KB Output is correct
54 Correct 19 ms 33108 KB Output is correct
55 Correct 24 ms 33156 KB Output is correct
56 Correct 19 ms 33164 KB Output is correct
57 Correct 20 ms 33448 KB Output is correct
58 Correct 19 ms 33392 KB Output is correct
59 Correct 19 ms 33456 KB Output is correct
60 Correct 19 ms 33464 KB Output is correct
61 Correct 22 ms 33492 KB Output is correct
62 Correct 20 ms 33456 KB Output is correct
63 Correct 20 ms 33400 KB Output is correct
64 Correct 19 ms 33360 KB Output is correct
65 Correct 22 ms 33364 KB Output is correct
66 Correct 20 ms 33364 KB Output is correct
67 Correct 19 ms 33364 KB Output is correct
68 Correct 19 ms 33364 KB Output is correct
69 Correct 20 ms 33364 KB Output is correct
70 Correct 18 ms 33116 KB Output is correct
71 Correct 40 ms 38256 KB Output is correct
72 Correct 39 ms 38236 KB Output is correct
73 Correct 53 ms 38160 KB Output is correct
74 Correct 72 ms 38332 KB Output is correct
75 Correct 64 ms 38244 KB Output is correct
76 Correct 42 ms 37852 KB Output is correct
77 Correct 41 ms 37852 KB Output is correct
78 Correct 83 ms 38232 KB Output is correct
79 Correct 37 ms 37848 KB Output is correct
80 Correct 46 ms 38196 KB Output is correct
81 Correct 52 ms 38232 KB Output is correct
82 Correct 47 ms 38144 KB Output is correct
83 Correct 53 ms 38100 KB Output is correct
84 Correct 65 ms 37832 KB Output is correct
85 Correct 68 ms 38360 KB Output is correct
86 Correct 58 ms 38140 KB Output is correct
87 Correct 46 ms 37976 KB Output is correct
88 Correct 75 ms 38312 KB Output is correct
89 Correct 73 ms 38336 KB Output is correct
90 Correct 56 ms 38252 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 21 ms 33100 KB Output is correct
2 Correct 19 ms 33112 KB Output is correct
3 Correct 18 ms 33096 KB Output is correct
4 Correct 18 ms 33148 KB Output is correct
5 Correct 19 ms 33076 KB Output is correct
6 Correct 18 ms 33108 KB Output is correct
7 Correct 22 ms 33096 KB Output is correct
8 Correct 19 ms 33088 KB Output is correct
9 Correct 18 ms 33108 KB Output is correct
10 Correct 21 ms 33108 KB Output is correct
11 Correct 19 ms 33184 KB Output is correct
12 Correct 18 ms 33108 KB Output is correct
13 Correct 157 ms 65080 KB Output is correct
14 Correct 139 ms 64952 KB Output is correct
15 Correct 164 ms 64768 KB Output is correct
16 Correct 152 ms 63652 KB Output is correct
17 Correct 171 ms 62760 KB Output is correct
18 Correct 476 ms 64972 KB Output is correct
19 Correct 186 ms 63152 KB Output is correct
20 Correct 18 ms 33096 KB Output is correct
21 Correct 18 ms 33092 KB Output is correct
22 Correct 19 ms 33072 KB Output is correct
23 Correct 18 ms 33236 KB Output is correct
24 Correct 19 ms 33108 KB Output is correct
25 Correct 19 ms 33108 KB Output is correct
26 Correct 18 ms 33088 KB Output is correct
27 Correct 18 ms 33108 KB Output is correct
28 Correct 19 ms 33168 KB Output is correct
29 Correct 19 ms 33128 KB Output is correct
30 Correct 19 ms 33080 KB Output is correct
31 Correct 20 ms 33364 KB Output is correct
32 Correct 20 ms 33408 KB Output is correct
33 Correct 20 ms 33364 KB Output is correct
34 Correct 24 ms 33428 KB Output is correct
35 Correct 20 ms 33364 KB Output is correct
36 Correct 20 ms 33328 KB Output is correct
37 Correct 20 ms 33392 KB Output is correct
38 Correct 21 ms 33308 KB Output is correct
39 Correct 20 ms 33376 KB Output is correct
40 Correct 23 ms 33388 KB Output is correct
41 Correct 21 ms 33352 KB Output is correct
42 Correct 19 ms 33364 KB Output is correct
43 Correct 20 ms 33460 KB Output is correct
44 Correct 23 ms 33064 KB Output is correct
45 Correct 41 ms 38212 KB Output is correct
46 Correct 38 ms 38192 KB Output is correct
47 Correct 61 ms 38092 KB Output is correct
48 Correct 68 ms 38228 KB Output is correct
49 Correct 70 ms 38344 KB Output is correct
50 Correct 40 ms 37816 KB Output is correct
51 Correct 47 ms 37868 KB Output is correct
52 Correct 92 ms 38232 KB Output is correct
53 Correct 35 ms 37828 KB Output is correct
54 Correct 18 ms 33128 KB Output is correct
55 Correct 19 ms 33108 KB Output is correct
56 Correct 18 ms 33144 KB Output is correct
57 Correct 21 ms 33124 KB Output is correct
58 Correct 19 ms 33076 KB Output is correct
59 Correct 19 ms 33184 KB Output is correct
60 Correct 20 ms 33108 KB Output is correct
61 Correct 19 ms 33176 KB Output is correct
62 Correct 19 ms 33108 KB Output is correct
63 Correct 24 ms 33156 KB Output is correct
64 Correct 19 ms 33164 KB Output is correct
65 Correct 20 ms 33448 KB Output is correct
66 Correct 19 ms 33392 KB Output is correct
67 Correct 19 ms 33456 KB Output is correct
68 Correct 19 ms 33464 KB Output is correct
69 Correct 22 ms 33492 KB Output is correct
70 Correct 20 ms 33456 KB Output is correct
71 Correct 20 ms 33400 KB Output is correct
72 Correct 19 ms 33360 KB Output is correct
73 Correct 22 ms 33364 KB Output is correct
74 Correct 20 ms 33364 KB Output is correct
75 Correct 19 ms 33364 KB Output is correct
76 Correct 19 ms 33364 KB Output is correct
77 Correct 20 ms 33364 KB Output is correct
78 Correct 18 ms 33116 KB Output is correct
79 Correct 40 ms 38256 KB Output is correct
80 Correct 39 ms 38236 KB Output is correct
81 Correct 53 ms 38160 KB Output is correct
82 Correct 72 ms 38332 KB Output is correct
83 Correct 64 ms 38244 KB Output is correct
84 Correct 42 ms 37852 KB Output is correct
85 Correct 41 ms 37852 KB Output is correct
86 Correct 83 ms 38232 KB Output is correct
87 Correct 37 ms 37848 KB Output is correct
88 Correct 46 ms 38196 KB Output is correct
89 Correct 52 ms 38232 KB Output is correct
90 Correct 47 ms 38144 KB Output is correct
91 Correct 53 ms 38100 KB Output is correct
92 Correct 65 ms 37832 KB Output is correct
93 Correct 68 ms 38360 KB Output is correct
94 Correct 58 ms 38140 KB Output is correct
95 Correct 46 ms 37976 KB Output is correct
96 Correct 75 ms 38312 KB Output is correct
97 Correct 73 ms 38336 KB Output is correct
98 Correct 56 ms 38252 KB Output is correct
99 Correct 18 ms 33108 KB Output is correct
100 Correct 18 ms 33100 KB Output is correct
101 Correct 20 ms 33108 KB Output is correct
102 Correct 19 ms 33088 KB Output is correct
103 Correct 19 ms 33088 KB Output is correct
104 Correct 18 ms 33076 KB Output is correct
105 Correct 19 ms 33132 KB Output is correct
106 Correct 19 ms 33176 KB Output is correct
107 Correct 18 ms 33084 KB Output is correct
108 Correct 20 ms 33096 KB Output is correct
109 Correct 18 ms 33096 KB Output is correct
110 Correct 18 ms 33100 KB Output is correct
111 Correct 159 ms 65424 KB Output is correct
112 Correct 152 ms 65508 KB Output is correct
113 Correct 163 ms 65260 KB Output is correct
114 Correct 155 ms 64168 KB Output is correct
115 Correct 168 ms 63208 KB Output is correct
116 Correct 475 ms 65364 KB Output is correct
117 Correct 188 ms 63504 KB Output is correct
118 Correct 20 ms 33364 KB Output is correct
119 Correct 20 ms 33336 KB Output is correct
120 Correct 19 ms 33364 KB Output is correct
121 Correct 20 ms 33424 KB Output is correct
122 Correct 20 ms 33392 KB Output is correct
123 Correct 19 ms 33456 KB Output is correct
124 Correct 19 ms 33396 KB Output is correct
125 Correct 19 ms 33348 KB Output is correct
126 Correct 22 ms 33508 KB Output is correct
127 Correct 20 ms 33364 KB Output is correct
128 Correct 18 ms 33340 KB Output is correct
129 Correct 19 ms 33428 KB Output is correct
130 Correct 22 ms 33344 KB Output is correct
131 Correct 18 ms 33108 KB Output is correct
132 Correct 40 ms 38416 KB Output is correct
133 Correct 41 ms 38272 KB Output is correct
134 Correct 57 ms 38340 KB Output is correct
135 Correct 66 ms 38316 KB Output is correct
136 Correct 63 ms 38404 KB Output is correct
137 Correct 40 ms 37972 KB Output is correct
138 Correct 40 ms 37944 KB Output is correct
139 Correct 85 ms 38344 KB Output is correct
140 Correct 38 ms 38004 KB Output is correct
141 Correct 45 ms 38356 KB Output is correct
142 Correct 55 ms 38368 KB Output is correct
143 Correct 51 ms 38344 KB Output is correct
144 Correct 56 ms 38212 KB Output is correct
145 Correct 53 ms 37968 KB Output is correct
146 Correct 69 ms 38324 KB Output is correct
147 Correct 62 ms 38088 KB Output is correct
148 Correct 47 ms 37996 KB Output is correct
149 Correct 76 ms 38208 KB Output is correct
150 Correct 67 ms 38332 KB Output is correct
151 Correct 55 ms 38116 KB Output is correct
152 Correct 588 ms 158888 KB Output is correct
153 Correct 619 ms 158928 KB Output is correct
154 Correct 566 ms 158888 KB Output is correct
155 Correct 1004 ms 157092 KB Output is correct
156 Correct 865 ms 154164 KB Output is correct
157 Correct 571 ms 147776 KB Output is correct
158 Correct 748 ms 150224 KB Output is correct
159 Correct 1822 ms 155704 KB Output is correct
160 Correct 1173 ms 155572 KB Output is correct
161 Correct 730 ms 148984 KB Output is correct
162 Correct 629 ms 149108 KB Output is correct