oj.uz

Submission #704043

# Submission time Handle Problem Language Result Execution time Memory
704043 2023-03-01T13:05:47 Z flappybird Event Hopping 2 (JOI21_event2) C++17
100 / 100
 209 ms 32632 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("avx,avx2,fma")
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;
#define MAX 201010
#define MAXS 20
#define INF 1000000000000000001
#define bb ' '
#define ln '\n'
#define Ln '\n'
int S[MAX];
int E[MAX];
vector<int> st[MAX];
int sp[MAX][MAXS];
int getnum(int l, int r) {
	int ans = 0;
	int i;
	for (i = MAXS - 1; i >= 0; i--) if (sp[l][i] <= r) l = sp[l][i], ans |= (1 << i);
	return ans;
}
signed main() {
	ios::sync_with_stdio(false), cin.tie(0);
	int N, K;
	cin >> N >> K;
	int i;
	vector<int> v;
	for (i = 1; i <= N; i++) {
		cin >> S[i] >> E[i];
		v.push_back(S[i]);
		v.push_back(E[i]);
	}
	sort(v.begin(), v.end());
	v.erase(unique(v.begin(), v.end()), v.end());
	for (i = 1; i <= N; i++) {
		S[i] = lower_bound(v.begin(), v.end(), S[i]) - v.begin() + 1;
		E[i] = lower_bound(v.begin(), v.end(), E[i]) - v.begin() + 1;
	}
	int X = v.size();
	for (i = 1; i <= N; i++) st[S[i]].push_back(E[i]);
	int mn = X + 1;
	for (i = 0; i < MAXS; i++) sp[X + 1][i] = X + 1;
	for (i = X; i >= 1; i--) {
		for (auto v : st[i]) mn = min(mn, v);
		sp[i][0] = mn;
	}
	int j;
	for (i = 1; i < MAXS; i++) for (j = 1; j <= X; j++) sp[j][i] = sp[sp[j][i - 1]][i - 1];
	set<pii> st;
	st.insert(pii(1, X));
	vector<int> ans;
	int sum = getnum(1, X);
	for (i = 1; i <= N; i++) {
		int s = S[i], e = E[i];
		auto it = st.lower_bound(pii(s + 1, -1e9));
		if (it-- == st.begin()) continue;
		auto [l, r] = *it;
		if (!(l <= s && e <= r)) continue;
		int delta = -getnum(l, r) + getnum(l, s) + getnum(e, r) + 1;
		if (sum + delta < K) continue;
		sum += delta;
		st.erase(it);
		st.emplace(l, s);
		st.emplace(e, r);
		ans.push_back(i);
		if (ans.size() == K) break;
	}
	if (ans.size() < K) {
		cout << -1 << ln;
		return 0;
	}
	for (auto v : ans) cout << v << ln;
}

Compilation message

event2.cpp: In function 'int main()':
event2.cpp:70:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   70 |   if (ans.size() == K) break;
      |       ~~~~~~~~~~~^~~~
event2.cpp:72:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   72 |  if (ans.size() < K) {
      |      ~~~~~~~~~~~^~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 163 ms 32556 KB Output is correct
5 Correct 139 ms 32356 KB Output is correct
6 Correct 135 ms 31988 KB Output is correct
7 Correct 148 ms 31552 KB Output is correct
8 Correct 139 ms 32536 KB Output is correct
9 Correct 136 ms 32284 KB Output is correct
10 Correct 126 ms 32108 KB Output is correct
11 Correct 124 ms 31572 KB Output is correct
12 Correct 130 ms 30556 KB Output is correct
13 Correct 123 ms 30416 KB Output is correct
14 Correct 116 ms 30300 KB Output is correct
15 Correct 112 ms 29868 KB Output is correct
16 Correct 90 ms 28072 KB Output is correct
17 Correct 92 ms 27988 KB Output is correct
18 Correct 85 ms 27892 KB Output is correct
19 Correct 82 ms 27348 KB Output is correct
20 Correct 89 ms 27384 KB Output is correct
21 Correct 89 ms 27464 KB Output is correct
22 Correct 81 ms 27356 KB Output is correct
23 Correct 81 ms 27316 KB Output is correct
24 Correct 84 ms 27264 KB Output is correct
25 Correct 86 ms 27256 KB Output is correct
26 Correct 85 ms 27460 KB Output is correct
27 Correct 88 ms 27336 KB Output is correct
28 Correct 86 ms 27276 KB Output is correct
29 Correct 87 ms 27248 KB Output is correct
30 Correct 87 ms 27248 KB Output is correct
31 Correct 102 ms 27336 KB Output is correct
32 Correct 94 ms 27256 KB Output is correct
33 Correct 94 ms 27264 KB Output is correct
34 Correct 107 ms 29252 KB Output is correct
35 Correct 90 ms 28560 KB Output is correct
36 Correct 95 ms 27972 KB Output is correct
37 Correct 105 ms 30152 KB Output is correct
38 Correct 115 ms 30036 KB Output is correct
39 Correct 102 ms 29952 KB Output is correct
40 Correct 115 ms 29748 KB Output is correct
41 Correct 108 ms 29736 KB Output is correct
42 Correct 97 ms 27252 KB Output is correct
43 Correct 123 ms 30036 KB Output is correct
44 Correct 116 ms 29980 KB Output is correct
45 Correct 111 ms 29812 KB Output is correct
46 Correct 128 ms 29684 KB Output is correct

Subtask #2
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5056 KB Output is correct
2 Correct 4 ms 5056 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 5060 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 3 ms 5052 KB Output is correct
8 Correct 2 ms 5056 KB Output is correct
9 Correct 2 ms 5056 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 3 ms 5056 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 ms 5056 KB Output is correct
14 Correct 2 ms 5056 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 5060 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 5060 KB Output is correct
21 Correct 4 ms 5060 KB Output is correct
22 Correct 4 ms 5064 KB Output is correct
23 Correct 3 ms 4948 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 2 ms 5060 KB Output is correct

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5056 KB Output is correct
2 Correct 4 ms 5056 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 5060 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 3 ms 5052 KB Output is correct
8 Correct 2 ms 5056 KB Output is correct
9 Correct 2 ms 5056 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 3 ms 5056 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 ms 5056 KB Output is correct
14 Correct 2 ms 5056 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 5060 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 5060 KB Output is correct
21 Correct 4 ms 5060 KB Output is correct
22 Correct 4 ms 5064 KB Output is correct
23 Correct 3 ms 4948 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 2 ms 5060 KB Output is correct
28 Correct 5 ms 5716 KB Output is correct
29 Correct 5 ms 5720 KB Output is correct
30 Correct 5 ms 5716 KB Output is correct
31 Correct 5 ms 5712 KB Output is correct
32 Correct 6 ms 5716 KB Output is correct
33 Correct 5 ms 5644 KB Output is correct
34 Correct 5 ms 5704 KB Output is correct
35 Correct 8 ms 5844 KB Output is correct
36 Correct 7 ms 5844 KB Output is correct
37 Correct 6 ms 5836 KB Output is correct
38 Correct 5 ms 5716 KB Output is correct
39 Correct 7 ms 5844 KB Output is correct
40 Correct 7 ms 5876 KB Output is correct
41 Correct 7 ms 5840 KB Output is correct
42 Correct 5 ms 5740 KB Output is correct
43 Correct 5 ms 5712 KB Output is correct
44 Correct 5 ms 5712 KB Output is correct
45 Correct 6 ms 5748 KB Output is correct
46 Correct 5 ms 5716 KB Output is correct
47 Correct 6 ms 5716 KB Output is correct
48 Correct 6 ms 5716 KB Output is correct
49 Correct 5 ms 5720 KB Output is correct
50 Correct 5 ms 5712 KB Output is correct
51 Correct 6 ms 5712 KB Output is correct
52 Correct 6 ms 5708 KB Output is correct
53 Correct 5 ms 5716 KB Output is correct
54 Correct 6 ms 5716 KB Output is correct
55 Correct 5 ms 5588 KB Output is correct
56 Correct 6 ms 5588 KB Output is correct
57 Correct 5 ms 5588 KB Output is correct
58 Correct 5 ms 5580 KB Output is correct
59 Correct 5 ms 5580 KB Output is correct
60 Correct 5 ms 5588 KB Output is correct
61 Correct 5 ms 5588 KB Output is correct
62 Correct 5 ms 5588 KB Output is correct
63 Correct 6 ms 5588 KB Output is correct
64 Correct 4 ms 5452 KB Output is correct

Subtask #4
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 163 ms 32556 KB Output is correct
5 Correct 139 ms 32356 KB Output is correct
6 Correct 135 ms 31988 KB Output is correct
7 Correct 148 ms 31552 KB Output is correct
8 Correct 139 ms 32536 KB Output is correct
9 Correct 136 ms 32284 KB Output is correct
10 Correct 126 ms 32108 KB Output is correct
11 Correct 124 ms 31572 KB Output is correct
12 Correct 130 ms 30556 KB Output is correct
13 Correct 123 ms 30416 KB Output is correct
14 Correct 116 ms 30300 KB Output is correct
15 Correct 112 ms 29868 KB Output is correct
16 Correct 90 ms 28072 KB Output is correct
17 Correct 92 ms 27988 KB Output is correct
18 Correct 85 ms 27892 KB Output is correct
19 Correct 82 ms 27348 KB Output is correct
20 Correct 89 ms 27384 KB Output is correct
21 Correct 89 ms 27464 KB Output is correct
22 Correct 81 ms 27356 KB Output is correct
23 Correct 81 ms 27316 KB Output is correct
24 Correct 84 ms 27264 KB Output is correct
25 Correct 86 ms 27256 KB Output is correct
26 Correct 85 ms 27460 KB Output is correct
27 Correct 88 ms 27336 KB Output is correct
28 Correct 86 ms 27276 KB Output is correct
29 Correct 87 ms 27248 KB Output is correct
30 Correct 87 ms 27248 KB Output is correct
31 Correct 102 ms 27336 KB Output is correct
32 Correct 94 ms 27256 KB Output is correct
33 Correct 94 ms 27264 KB Output is correct
34 Correct 107 ms 29252 KB Output is correct
35 Correct 90 ms 28560 KB Output is correct
36 Correct 95 ms 27972 KB Output is correct
37 Correct 105 ms 30152 KB Output is correct
38 Correct 115 ms 30036 KB Output is correct
39 Correct 102 ms 29952 KB Output is correct
40 Correct 115 ms 29748 KB Output is correct
41 Correct 108 ms 29736 KB Output is correct
42 Correct 97 ms 27252 KB Output is correct
43 Correct 123 ms 30036 KB Output is correct
44 Correct 116 ms 29980 KB Output is correct
45 Correct 111 ms 29812 KB Output is correct
46 Correct 128 ms 29684 KB Output is correct
47 Correct 4 ms 5056 KB Output is correct
48 Correct 4 ms 5056 KB Output is correct
49 Correct 3 ms 4948 KB Output is correct
50 Correct 3 ms 5060 KB Output is correct
51 Correct 2 ms 4948 KB Output is correct
52 Correct 2 ms 4948 KB Output is correct
53 Correct 3 ms 5052 KB Output is correct
54 Correct 2 ms 5056 KB Output is correct
55 Correct 2 ms 5056 KB Output is correct
56 Correct 2 ms 4948 KB Output is correct
57 Correct 3 ms 5056 KB Output is correct
58 Correct 2 ms 4948 KB Output is correct
59 Correct 2 ms 5056 KB Output is correct
60 Correct 2 ms 5056 KB Output is correct
61 Correct 2 ms 4948 KB Output is correct
62 Correct 2 ms 4948 KB Output is correct
63 Correct 3 ms 4948 KB Output is correct
64 Correct 3 ms 5060 KB Output is correct
65 Correct 3 ms 4948 KB Output is correct
66 Correct 3 ms 5060 KB Output is correct
67 Correct 4 ms 5060 KB Output is correct
68 Correct 4 ms 5064 KB Output is correct
69 Correct 3 ms 4948 KB Output is correct
70 Correct 3 ms 4948 KB Output is correct
71 Correct 3 ms 4948 KB Output is correct
72 Correct 3 ms 4948 KB Output is correct
73 Correct 2 ms 5060 KB Output is correct
74 Correct 5 ms 5716 KB Output is correct
75 Correct 5 ms 5720 KB Output is correct
76 Correct 5 ms 5716 KB Output is correct
77 Correct 5 ms 5712 KB Output is correct
78 Correct 6 ms 5716 KB Output is correct
79 Correct 5 ms 5644 KB Output is correct
80 Correct 5 ms 5704 KB Output is correct
81 Correct 8 ms 5844 KB Output is correct
82 Correct 7 ms 5844 KB Output is correct
83 Correct 6 ms 5836 KB Output is correct
84 Correct 5 ms 5716 KB Output is correct
85 Correct 7 ms 5844 KB Output is correct
86 Correct 7 ms 5876 KB Output is correct
87 Correct 7 ms 5840 KB Output is correct
88 Correct 5 ms 5740 KB Output is correct
89 Correct 5 ms 5712 KB Output is correct
90 Correct 5 ms 5712 KB Output is correct
91 Correct 6 ms 5748 KB Output is correct
92 Correct 5 ms 5716 KB Output is correct
93 Correct 6 ms 5716 KB Output is correct
94 Correct 6 ms 5716 KB Output is correct
95 Correct 5 ms 5720 KB Output is correct
96 Correct 5 ms 5712 KB Output is correct
97 Correct 6 ms 5712 KB Output is correct
98 Correct 6 ms 5708 KB Output is correct
99 Correct 5 ms 5716 KB Output is correct
100 Correct 6 ms 5716 KB Output is correct
101 Correct 5 ms 5588 KB Output is correct
102 Correct 6 ms 5588 KB Output is correct
103 Correct 5 ms 5588 KB Output is correct
104 Correct 5 ms 5580 KB Output is correct
105 Correct 5 ms 5580 KB Output is correct
106 Correct 5 ms 5588 KB Output is correct
107 Correct 5 ms 5588 KB Output is correct
108 Correct 5 ms 5588 KB Output is correct
109 Correct 6 ms 5588 KB Output is correct
110 Correct 4 ms 5452 KB Output is correct
111 Correct 123 ms 27276 KB Output is correct
112 Correct 126 ms 27260 KB Output is correct
113 Correct 115 ms 27344 KB Output is correct
114 Correct 109 ms 27252 KB Output is correct
115 Correct 105 ms 27336 KB Output is correct
116 Correct 125 ms 27336 KB Output is correct
117 Correct 121 ms 27252 KB Output is correct
118 Correct 209 ms 32632 KB Output is correct
119 Correct 208 ms 32068 KB Output is correct
120 Correct 148 ms 29952 KB Output is correct
121 Correct 181 ms 27340 KB Output is correct
122 Correct 179 ms 30512 KB Output is correct
123 Correct 160 ms 30172 KB Output is correct
124 Correct 149 ms 29900 KB Output is correct
125 Correct 184 ms 27252 KB Output is correct
126 Correct 131 ms 28028 KB Output is correct
127 Correct 128 ms 27972 KB Output is correct
128 Correct 128 ms 27952 KB Output is correct
129 Correct 159 ms 27284 KB Output is correct
130 Correct 112 ms 27340 KB Output is correct
131 Correct 119 ms 27328 KB Output is correct
132 Correct 131 ms 27336 KB Output is correct
133 Correct 137 ms 27228 KB Output is correct
134 Correct 108 ms 27348 KB Output is correct
135 Correct 113 ms 27372 KB Output is correct
136 Correct 126 ms 27472 KB Output is correct
137 Correct 129 ms 27228 KB Output is correct
138 Correct 110 ms 27264 KB Output is correct
139 Correct 119 ms 27332 KB Output is correct
140 Correct 128 ms 27268 KB Output is correct
141 Correct 131 ms 27316 KB Output is correct
142 Correct 109 ms 25136 KB Output is correct
143 Correct 113 ms 25184 KB Output is correct
144 Correct 118 ms 25076 KB Output is correct
145 Correct 114 ms 25156 KB Output is correct
146 Correct 120 ms 25000 KB Output is correct
147 Correct 164 ms 24988 KB Output is correct
148 Correct 117 ms 24812 KB Output is correct
149 Correct 111 ms 24676 KB Output is correct
150 Correct 108 ms 24600 KB Output is correct
151 Correct 124 ms 24032 KB Output is correct
152 Correct 67 ms 19576 KB Output is correct
153 Correct 111 ms 25108 KB Output is correct
154 Correct 114 ms 25080 KB Output is correct
155 Correct 119 ms 24884 KB Output is correct
156 Correct 107 ms 24780 KB Output is correct
157 Correct 128 ms 24708 KB Output is correct
158 Correct 109 ms 24536 KB Output is correct
159 Correct 107 ms 24168 KB Output is correct
160 Correct 60 ms 19504 KB Output is correct
161 Correct 148 ms 26216 KB Output is correct
162 Correct 138 ms 26104 KB Output is correct
163 Correct 136 ms 26056 KB Output is correct
164 Correct 151 ms 25872 KB Output is correct
165 Correct 126 ms 25792 KB Output is correct
166 Correct 95 ms 27256 KB Output is correct
167 Correct 116 ms 30048 KB Output is correct
168 Correct 116 ms 29896 KB Output is correct
169 Correct 107 ms 29788 KB Output is correct
170 Correct 112 ms 29652 KB Output is correct
171 Correct 116 ms 29440 KB Output is correct
172 Correct 121 ms 30092 KB Output is correct
173 Correct 124 ms 22344 KB Output is correct
174 Correct 132 ms 22280 KB Output is correct
175 Correct 142 ms 22260 KB Output is correct
176 Correct 120 ms 21716 KB Output is correct