oj.uz

Submission #734217

# Submission time Handle Problem Language Result Execution time Memory
734217 2023-05-02T05:15:51 Z pavement The short shank; Redemption (BOI21_prison) C++17
100 / 100
 1972 ms 524288 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
//~ #define int long long
#define mp make_pair
#define mt make_tuple
#define pb push_back
#define ppb pop_back
#define eb emplace_back
#define g0(a) get<0>(a)
#define g1(a) get<1>(a)
#define g2(a) get<2>(a)
#define g3(a) get<3>(a)
#define g4(a) get<4>(a)
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
using db = double;
using ll = long long;
using ld = long double;
using ii = pair<int, int>;
using iii = tuple<int, int, int>;
using iiii = tuple<int, int, int, int>;
using iiiii = tuple<int, int, int, int, int>;
template<class key, class value = null_type, class cmp = less<key> >
using ordered_set = tree<key, value, cmp, rb_tree_tag, tree_order_statistics_node_update>;

int N, D, T, ans, t[2000005], l[2000005];
bool seen[2000005];
stack<ii> st;

struct node *root;

struct node {
	node *left, *right;
	int S, E, pv;
	ii val;
	vector<int> vec;
	node(int _s, int _e) : S(_s), E(_e), pv(0) {
		if (S == E) {
			val = mp(0, S);
			return;
		}
		int M = (S + E) >> 1;
		left = new node(S, M);
		right = new node(M + 1, E);
		val = max(left->val, right->val);
	}
	void prop() {
		if (S == E || !pv) return;
		left->val.first += pv;
		left->pv += pv;
		right->val.first += pv;
		right->pv += pv;
		pv = 0;
	}
	void upd(int l, int r, int v) {
		if (l > E || r < S) return;
		if (l <= S && E <= r) {
			val.first += v;
			pv += v;
			return;
		}
		prop();
		left->upd(l, r, v);
		right->upd(l, r, v);
		val = max(left->val, right->val);
	}
	void add(int l, int r, int idx) {
		if (l > E || r < S) return;
		if (l <= S && E <= r) {
			vec.pb(idx);
			return;
		}
		left->add(l, r, idx);
		right->add(l, r, idx);
	}
	void get_all(int p) {
		for (auto i : vec) {
			if (seen[i]) continue;
			seen[i] = 1;
			root->upd(l[i], i, -1);
		}
		vec.clear();
		if (S == E) return;
		int M = (S + E) >> 1;
		prop();
		if (p <= M) left->get_all(p);
		else right->get_all(p);
	}
};

main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cin >> N >> D >> T;
	for (int i = 1; i <= N; i++) {
		cin >> t[i];
	}
	root = new node(1, N);
	for (int i = 1; i <= N; i++) {
		// find max j such that
		// t[j] + i - j <= T
		// t[j] - j <= T - i
		while (!st.empty() && st.top().first >= t[i] - i) st.pop();
		st.emplace(t[i] - i, i);
		while (!st.empty() && st.top().first > T - i) st.pop();
		if (st.empty()) ans--;
		else if (st.top().second + 1 <= i) {
			l[i] = st.top().second + 1;
			root->upd(l[i], i, 1);
			root->add(l[i], i, i);
		}
	}
	ans += N;
	while (D--) {
		auto cur = root->val;
		if (cur.first == 0) break;
		ans -= cur.first;
		root->get_all(cur.second);
	}
	cout << ans << '\n';
}

Compilation message

prison.cpp:93:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   93 | main() {
      | ^~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 193 ms 90344 KB Output is correct
3 Correct 199 ms 87864 KB Output is correct
4 Correct 209 ms 93084 KB Output is correct
5 Correct 232 ms 96984 KB Output is correct
6 Correct 206 ms 91832 KB Output is correct
7 Correct 528 ms 131540 KB Output is correct
8 Correct 243 ms 94260 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 2 ms 980 KB Output is correct
24 Correct 2 ms 980 KB Output is correct
25 Correct 2 ms 980 KB Output is correct
26 Correct 2 ms 980 KB Output is correct
27 Correct 3 ms 980 KB Output is correct
28 Correct 2 ms 980 KB Output is correct
29 Correct 2 ms 980 KB Output is correct
30 Correct 2 ms 980 KB Output is correct
31 Correct 2 ms 1028 KB Output is correct
32 Correct 2 ms 980 KB Output is correct
33 Correct 2 ms 980 KB Output is correct
34 Correct 3 ms 1108 KB Output is correct
35 Correct 3 ms 1108 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 40 ms 14128 KB Output is correct
3 Correct 29 ms 13908 KB Output is correct
4 Correct 54 ms 17160 KB Output is correct
5 Correct 57 ms 18200 KB Output is correct
6 Correct 57 ms 18292 KB Output is correct
7 Correct 32 ms 14064 KB Output is correct
8 Correct 28 ms 13992 KB Output is correct
9 Correct 73 ms 20752 KB Output is correct
10 Correct 31 ms 13652 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 2 ms 980 KB Output is correct
24 Correct 2 ms 980 KB Output is correct
25 Correct 2 ms 980 KB Output is correct
26 Correct 2 ms 980 KB Output is correct
27 Correct 3 ms 980 KB Output is correct
28 Correct 2 ms 980 KB Output is correct
29 Correct 2 ms 980 KB Output is correct
30 Correct 2 ms 980 KB Output is correct
31 Correct 2 ms 1028 KB Output is correct
32 Correct 2 ms 980 KB Output is correct
33 Correct 2 ms 980 KB Output is correct
34 Correct 3 ms 1108 KB Output is correct
35 Correct 3 ms 1108 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 40 ms 14128 KB Output is correct
38 Correct 29 ms 13908 KB Output is correct
39 Correct 54 ms 17160 KB Output is correct
40 Correct 57 ms 18200 KB Output is correct
41 Correct 57 ms 18292 KB Output is correct
42 Correct 32 ms 14064 KB Output is correct
43 Correct 28 ms 13992 KB Output is correct
44 Correct 73 ms 20752 KB Output is correct
45 Correct 31 ms 13652 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 340 KB Output is correct
53 Correct 0 ms 340 KB Output is correct
54 Correct 1 ms 340 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 2 ms 980 KB Output is correct
58 Correct 2 ms 980 KB Output is correct
59 Correct 3 ms 980 KB Output is correct
60 Correct 3 ms 980 KB Output is correct
61 Correct 2 ms 980 KB Output is correct
62 Correct 2 ms 980 KB Output is correct
63 Correct 2 ms 980 KB Output is correct
64 Correct 3 ms 980 KB Output is correct
65 Correct 2 ms 980 KB Output is correct
66 Correct 1 ms 980 KB Output is correct
67 Correct 2 ms 980 KB Output is correct
68 Correct 3 ms 1108 KB Output is correct
69 Correct 2 ms 1108 KB Output is correct
70 Correct 0 ms 340 KB Output is correct
71 Correct 34 ms 14120 KB Output is correct
72 Correct 28 ms 13784 KB Output is correct
73 Correct 56 ms 17248 KB Output is correct
74 Correct 72 ms 18152 KB Output is correct
75 Correct 59 ms 18160 KB Output is correct
76 Correct 28 ms 14000 KB Output is correct
77 Correct 28 ms 13908 KB Output is correct
78 Correct 69 ms 20740 KB Output is correct
79 Correct 24 ms 13644 KB Output is correct
80 Correct 35 ms 13876 KB Output is correct
81 Correct 46 ms 14180 KB Output is correct
82 Correct 38 ms 13852 KB Output is correct
83 Correct 56 ms 16876 KB Output is correct
84 Correct 48 ms 14552 KB Output is correct
85 Correct 60 ms 18468 KB Output is correct
86 Correct 46 ms 15184 KB Output is correct
87 Correct 38 ms 13584 KB Output is correct
88 Correct 80 ms 19176 KB Output is correct
89 Correct 75 ms 21696 KB Output is correct
90 Correct 58 ms 18852 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 193 ms 90344 KB Output is correct
14 Correct 199 ms 87864 KB Output is correct
15 Correct 209 ms 93084 KB Output is correct
16 Correct 232 ms 96984 KB Output is correct
17 Correct 206 ms 91832 KB Output is correct
18 Correct 528 ms 131540 KB Output is correct
19 Correct 243 ms 94260 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 2 ms 980 KB Output is correct
32 Correct 2 ms 980 KB Output is correct
33 Correct 2 ms 980 KB Output is correct
34 Correct 2 ms 980 KB Output is correct
35 Correct 3 ms 980 KB Output is correct
36 Correct 2 ms 980 KB Output is correct
37 Correct 2 ms 980 KB Output is correct
38 Correct 2 ms 980 KB Output is correct
39 Correct 2 ms 1028 KB Output is correct
40 Correct 2 ms 980 KB Output is correct
41 Correct 2 ms 980 KB Output is correct
42 Correct 3 ms 1108 KB Output is correct
43 Correct 3 ms 1108 KB Output is correct
44 Correct 0 ms 340 KB Output is correct
45 Correct 40 ms 14128 KB Output is correct
46 Correct 29 ms 13908 KB Output is correct
47 Correct 54 ms 17160 KB Output is correct
48 Correct 57 ms 18200 KB Output is correct
49 Correct 57 ms 18292 KB Output is correct
50 Correct 32 ms 14064 KB Output is correct
51 Correct 28 ms 13992 KB Output is correct
52 Correct 73 ms 20752 KB Output is correct
53 Correct 31 ms 13652 KB Output is correct
54 Correct 0 ms 340 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 0 ms 340 KB Output is correct
62 Correct 1 ms 340 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 1 ms 340 KB Output is correct
65 Correct 2 ms 980 KB Output is correct
66 Correct 2 ms 980 KB Output is correct
67 Correct 3 ms 980 KB Output is correct
68 Correct 3 ms 980 KB Output is correct
69 Correct 2 ms 980 KB Output is correct
70 Correct 2 ms 980 KB Output is correct
71 Correct 2 ms 980 KB Output is correct
72 Correct 3 ms 980 KB Output is correct
73 Correct 2 ms 980 KB Output is correct
74 Correct 1 ms 980 KB Output is correct
75 Correct 2 ms 980 KB Output is correct
76 Correct 3 ms 1108 KB Output is correct
77 Correct 2 ms 1108 KB Output is correct
78 Correct 0 ms 340 KB Output is correct
79 Correct 34 ms 14120 KB Output is correct
80 Correct 28 ms 13784 KB Output is correct
81 Correct 56 ms 17248 KB Output is correct
82 Correct 72 ms 18152 KB Output is correct
83 Correct 59 ms 18160 KB Output is correct
84 Correct 28 ms 14000 KB Output is correct
85 Correct 28 ms 13908 KB Output is correct
86 Correct 69 ms 20740 KB Output is correct
87 Correct 24 ms 13644 KB Output is correct
88 Correct 35 ms 13876 KB Output is correct
89 Correct 46 ms 14180 KB Output is correct
90 Correct 38 ms 13852 KB Output is correct
91 Correct 56 ms 16876 KB Output is correct
92 Correct 48 ms 14552 KB Output is correct
93 Correct 60 ms 18468 KB Output is correct
94 Correct 46 ms 15184 KB Output is correct
95 Correct 38 ms 13584 KB Output is correct
96 Correct 80 ms 19176 KB Output is correct
97 Correct 75 ms 21696 KB Output is correct
98 Correct 58 ms 18852 KB Output is correct
99 Correct 0 ms 340 KB Output is correct
100 Correct 0 ms 340 KB Output is correct
101 Correct 1 ms 340 KB Output is correct
102 Correct 1 ms 340 KB Output is correct
103 Correct 1 ms 340 KB Output is correct
104 Correct 1 ms 340 KB Output is correct
105 Correct 1 ms 340 KB Output is correct
106 Correct 1 ms 340 KB Output is correct
107 Correct 1 ms 340 KB Output is correct
108 Correct 1 ms 340 KB Output is correct
109 Correct 1 ms 340 KB Output is correct
110 Correct 1 ms 340 KB Output is correct
111 Correct 199 ms 90456 KB Output is correct
112 Correct 171 ms 87872 KB Output is correct
113 Correct 220 ms 93052 KB Output is correct
114 Correct 252 ms 97124 KB Output is correct
115 Correct 198 ms 91800 KB Output is correct
116 Correct 564 ms 131492 KB Output is correct
117 Correct 227 ms 94340 KB Output is correct
118 Correct 3 ms 980 KB Output is correct
119 Correct 2 ms 980 KB Output is correct
120 Correct 2 ms 980 KB Output is correct
121 Correct 2 ms 980 KB Output is correct
122 Correct 3 ms 980 KB Output is correct
123 Correct 2 ms 980 KB Output is correct
124 Correct 2 ms 980 KB Output is correct
125 Correct 2 ms 980 KB Output is correct
126 Correct 2 ms 980 KB Output is correct
127 Correct 2 ms 980 KB Output is correct
128 Correct 3 ms 980 KB Output is correct
129 Correct 3 ms 1108 KB Output is correct
130 Correct 3 ms 1108 KB Output is correct
131 Correct 0 ms 340 KB Output is correct
132 Correct 34 ms 14108 KB Output is correct
133 Correct 31 ms 13864 KB Output is correct
134 Correct 56 ms 17156 KB Output is correct
135 Correct 58 ms 18100 KB Output is correct
136 Correct 60 ms 18204 KB Output is correct
137 Correct 31 ms 14056 KB Output is correct
138 Correct 29 ms 13944 KB Output is correct
139 Correct 72 ms 20796 KB Output is correct
140 Correct 25 ms 13664 KB Output is correct
141 Correct 34 ms 13816 KB Output is correct
142 Correct 43 ms 14224 KB Output is correct
143 Correct 37 ms 13840 KB Output is correct
144 Correct 59 ms 16884 KB Output is correct
145 Correct 47 ms 14668 KB Output is correct
146 Correct 60 ms 18404 KB Output is correct
147 Correct 49 ms 15188 KB Output is correct
148 Correct 34 ms 13656 KB Output is correct
149 Correct 62 ms 19208 KB Output is correct
150 Correct 79 ms 21544 KB Output is correct
151 Correct 66 ms 18836 KB Output is correct
152 Correct 793 ms 362804 KB Output is correct
153 Correct 839 ms 366064 KB Output is correct
154 Correct 784 ms 360040 KB Output is correct
155 Correct 1361 ms 416812 KB Output is correct
156 Correct 1223 ms 389472 KB Output is correct
157 Correct 639 ms 348120 KB Output is correct
158 Correct 939 ms 379592 KB Output is correct
159 Correct 1972 ms 524288 KB Output is correct
160 Correct 1902 ms 524288 KB Output is correct
161 Correct 789 ms 369820 KB Output is correct
162 Correct 741 ms 375660 KB Output is correct