oj.uz

Submission #420259

# Submission time Handle Problem Language Result Execution time Memory
420259 2021-06-08T08:36:03 Z amoo_safar Event Hopping 2 (JOI21_event2) C++17
100 / 100
 301 ms 25508 KB 
// vaziat meshki-ghermeze !
#include <bits/stdc++.h>

#define pb push_back
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define debug(x) cerr << #x << " : " << x << '\n'

using namespace std;

typedef long long ll;
typedef long double ld;
typedef string str;
typedef pair<ll, ll> pll;

const ll Mod = 1000000007LL;
const int N = 2e5 + 10;
const ll Inf = 2242545357980376863LL;
const int Log = 20;

int nx[Log][N];
int mn[N];
int l[N], r[N];

int Solve(int lq, int rq){
	int ans = 0;
	for(int lg = Log - 1; lg >= 0; lg--){
		if(nx[lg][lq] <= rq){
			lq = nx[lg][lq];
			ans += (1 << lg);
		}
	}
	return ans;
}

int main(){
	ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	int n, k;
	cin >> n >> k;
	vector<int> V;
	for(int i = 1; i <= n; i++){
		cin >> l[i] >> r[i];
		V.pb(l[i]); V.pb(r[i]);
	}
	sort(all(V));
	V.resize(unique(all(V)) - V.begin());
	int m = V.size();
	fill(mn, mn + m + 1, m);
	for(int i = 1; i <= n; i++){
		l[i] = lower_bound(all(V), l[i]) - V.begin();
		r[i] = lower_bound(all(V), r[i]) - V.begin();
		mn[l[i]] = min(mn[l[i]], r[i]);
	}

	for(int i = m - 1; i >= 0; i--)
		mn[i] = min(mn[i], mn[i + 1]);
	for(int i = 0; i <= m; i++) nx[0][i] = mn[i];
	for(int lg = 0; lg + 1 < Log; lg++)
		for(int i = 0; i <= m; i++)
			nx[lg + 1][i] = nx[lg][ nx[lg][i] ];

	if(Solve(0, m - 1) < k)
		return cout << "-1\n", 0;
	int sm = Solve(0, m - 1);
	set< pair<int, int> > st;
	st.insert({0, m - 1});
	
	vector<int> pk;
	for(int i = 1; i <= n; i++){
		auto it = st.upper_bound({l[i], Inf});
		if(it == st.begin())
			continue;
		it --;
		auto seg = *it;
		if(seg.S < r[i])
			continue;

		int ft = sm - Solve(seg.F, seg.S) + Solve(seg.F, l[i]) + Solve(r[i], seg.S) + 1;
		if(ft < k)
			continue;
		st.erase(seg);
		if(seg.F != l[i])
			st.insert({seg.F, l[i]});
		if(seg.S != r[i])
			st.insert({r[i], seg.S});
		sm = ft;
		pk.pb(i);
	}
	for(int i = 0; i < k; i++) cout << pk[i] << '\n';
	return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 148 ms 25436 KB Output is correct
5 Correct 149 ms 25492 KB Output is correct
6 Correct 144 ms 25448 KB Output is correct
7 Correct 170 ms 25372 KB Output is correct
8 Correct 147 ms 25428 KB Output is correct
9 Correct 146 ms 25508 KB Output is correct
10 Correct 150 ms 25488 KB Output is correct
11 Correct 143 ms 25408 KB Output is correct
12 Correct 115 ms 23496 KB Output is correct
13 Correct 123 ms 23540 KB Output is correct
14 Correct 142 ms 23380 KB Output is correct
15 Correct 129 ms 23356 KB Output is correct
16 Correct 75 ms 20876 KB Output is correct
17 Correct 88 ms 20860 KB Output is correct
18 Correct 80 ms 20924 KB Output is correct
19 Correct 65 ms 20408 KB Output is correct
20 Correct 64 ms 20416 KB Output is correct
21 Correct 66 ms 20292 KB Output is correct
22 Correct 71 ms 20356 KB Output is correct
23 Correct 65 ms 20368 KB Output is correct
24 Correct 78 ms 20272 KB Output is correct
25 Correct 71 ms 20292 KB Output is correct
26 Correct 67 ms 20416 KB Output is correct
27 Correct 69 ms 20372 KB Output is correct
28 Correct 58 ms 20336 KB Output is correct
29 Correct 54 ms 20272 KB Output is correct
30 Correct 55 ms 20356 KB Output is correct
31 Correct 59 ms 20268 KB Output is correct
32 Correct 63 ms 20364 KB Output is correct
33 Correct 67 ms 20288 KB Output is correct
34 Correct 116 ms 23272 KB Output is correct
35 Correct 117 ms 23304 KB Output is correct
36 Correct 116 ms 23168 KB Output is correct
37 Correct 111 ms 23064 KB Output is correct
38 Correct 107 ms 22960 KB Output is correct
39 Correct 113 ms 23052 KB Output is correct
40 Correct 106 ms 22964 KB Output is correct
41 Correct 108 ms 23056 KB Output is correct
42 Correct 65 ms 20292 KB Output is correct
43 Correct 118 ms 23004 KB Output is correct
44 Correct 115 ms 22844 KB Output is correct
45 Correct 113 ms 22764 KB Output is correct
46 Correct 111 ms 22560 KB Output is correct

Subtask #2
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 448 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 456 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 452 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 452 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 448 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 456 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 452 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 452 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 4 ms 972 KB Output is correct
29 Correct 3 ms 972 KB Output is correct
30 Correct 3 ms 972 KB Output is correct
31 Correct 3 ms 972 KB Output is correct
32 Correct 3 ms 972 KB Output is correct
33 Correct 3 ms 972 KB Output is correct
34 Correct 3 ms 1032 KB Output is correct
35 Correct 5 ms 1108 KB Output is correct
36 Correct 5 ms 1172 KB Output is correct
37 Correct 5 ms 1100 KB Output is correct
38 Correct 3 ms 972 KB Output is correct
39 Correct 5 ms 1184 KB Output is correct
40 Correct 5 ms 1100 KB Output is correct
41 Correct 5 ms 1100 KB Output is correct
42 Correct 3 ms 972 KB Output is correct
43 Correct 4 ms 1100 KB Output is correct
44 Correct 4 ms 1040 KB Output is correct
45 Correct 4 ms 1100 KB Output is correct
46 Correct 3 ms 972 KB Output is correct
47 Correct 3 ms 972 KB Output is correct
48 Correct 3 ms 972 KB Output is correct
49 Correct 4 ms 972 KB Output is correct
50 Correct 3 ms 972 KB Output is correct
51 Correct 3 ms 972 KB Output is correct
52 Correct 3 ms 972 KB Output is correct
53 Correct 4 ms 972 KB Output is correct
54 Correct 3 ms 972 KB Output is correct
55 Correct 3 ms 844 KB Output is correct
56 Correct 3 ms 844 KB Output is correct
57 Correct 3 ms 844 KB Output is correct
58 Correct 4 ms 852 KB Output is correct
59 Correct 4 ms 760 KB Output is correct
60 Correct 4 ms 844 KB Output is correct
61 Correct 3 ms 788 KB Output is correct
62 Correct 3 ms 844 KB Output is correct
63 Correct 4 ms 844 KB Output is correct
64 Correct 2 ms 716 KB Output is correct

Subtask #4
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 148 ms 25436 KB Output is correct
5 Correct 149 ms 25492 KB Output is correct
6 Correct 144 ms 25448 KB Output is correct
7 Correct 170 ms 25372 KB Output is correct
8 Correct 147 ms 25428 KB Output is correct
9 Correct 146 ms 25508 KB Output is correct
10 Correct 150 ms 25488 KB Output is correct
11 Correct 143 ms 25408 KB Output is correct
12 Correct 115 ms 23496 KB Output is correct
13 Correct 123 ms 23540 KB Output is correct
14 Correct 142 ms 23380 KB Output is correct
15 Correct 129 ms 23356 KB Output is correct
16 Correct 75 ms 20876 KB Output is correct
17 Correct 88 ms 20860 KB Output is correct
18 Correct 80 ms 20924 KB Output is correct
19 Correct 65 ms 20408 KB Output is correct
20 Correct 64 ms 20416 KB Output is correct
21 Correct 66 ms 20292 KB Output is correct
22 Correct 71 ms 20356 KB Output is correct
23 Correct 65 ms 20368 KB Output is correct
24 Correct 78 ms 20272 KB Output is correct
25 Correct 71 ms 20292 KB Output is correct
26 Correct 67 ms 20416 KB Output is correct
27 Correct 69 ms 20372 KB Output is correct
28 Correct 58 ms 20336 KB Output is correct
29 Correct 54 ms 20272 KB Output is correct
30 Correct 55 ms 20356 KB Output is correct
31 Correct 59 ms 20268 KB Output is correct
32 Correct 63 ms 20364 KB Output is correct
33 Correct 67 ms 20288 KB Output is correct
34 Correct 116 ms 23272 KB Output is correct
35 Correct 117 ms 23304 KB Output is correct
36 Correct 116 ms 23168 KB Output is correct
37 Correct 111 ms 23064 KB Output is correct
38 Correct 107 ms 22960 KB Output is correct
39 Correct 113 ms 23052 KB Output is correct
40 Correct 106 ms 22964 KB Output is correct
41 Correct 108 ms 23056 KB Output is correct
42 Correct 65 ms 20292 KB Output is correct
43 Correct 118 ms 23004 KB Output is correct
44 Correct 115 ms 22844 KB Output is correct
45 Correct 113 ms 22764 KB Output is correct
46 Correct 111 ms 22560 KB Output is correct
47 Correct 1 ms 332 KB Output is correct
48 Correct 1 ms 332 KB Output is correct
49 Correct 1 ms 332 KB Output is correct
50 Correct 1 ms 332 KB Output is correct
51 Correct 1 ms 332 KB Output is correct
52 Correct 1 ms 448 KB Output is correct
53 Correct 1 ms 332 KB Output is correct
54 Correct 1 ms 332 KB Output is correct
55 Correct 1 ms 332 KB Output is correct
56 Correct 1 ms 456 KB Output is correct
57 Correct 1 ms 332 KB Output is correct
58 Correct 1 ms 332 KB Output is correct
59 Correct 1 ms 332 KB Output is correct
60 Correct 1 ms 332 KB Output is correct
61 Correct 1 ms 452 KB Output is correct
62 Correct 1 ms 332 KB Output is correct
63 Correct 1 ms 332 KB Output is correct
64 Correct 1 ms 452 KB Output is correct
65 Correct 1 ms 332 KB Output is correct
66 Correct 1 ms 332 KB Output is correct
67 Correct 1 ms 332 KB Output is correct
68 Correct 1 ms 332 KB Output is correct
69 Correct 1 ms 332 KB Output is correct
70 Correct 1 ms 332 KB Output is correct
71 Correct 1 ms 332 KB Output is correct
72 Correct 1 ms 332 KB Output is correct
73 Correct 1 ms 332 KB Output is correct
74 Correct 4 ms 972 KB Output is correct
75 Correct 3 ms 972 KB Output is correct
76 Correct 3 ms 972 KB Output is correct
77 Correct 3 ms 972 KB Output is correct
78 Correct 3 ms 972 KB Output is correct
79 Correct 3 ms 972 KB Output is correct
80 Correct 3 ms 1032 KB Output is correct
81 Correct 5 ms 1108 KB Output is correct
82 Correct 5 ms 1172 KB Output is correct
83 Correct 5 ms 1100 KB Output is correct
84 Correct 3 ms 972 KB Output is correct
85 Correct 5 ms 1184 KB Output is correct
86 Correct 5 ms 1100 KB Output is correct
87 Correct 5 ms 1100 KB Output is correct
88 Correct 3 ms 972 KB Output is correct
89 Correct 4 ms 1100 KB Output is correct
90 Correct 4 ms 1040 KB Output is correct
91 Correct 4 ms 1100 KB Output is correct
92 Correct 3 ms 972 KB Output is correct
93 Correct 3 ms 972 KB Output is correct
94 Correct 3 ms 972 KB Output is correct
95 Correct 4 ms 972 KB Output is correct
96 Correct 3 ms 972 KB Output is correct
97 Correct 3 ms 972 KB Output is correct
98 Correct 3 ms 972 KB Output is correct
99 Correct 4 ms 972 KB Output is correct
100 Correct 3 ms 972 KB Output is correct
101 Correct 3 ms 844 KB Output is correct
102 Correct 3 ms 844 KB Output is correct
103 Correct 3 ms 844 KB Output is correct
104 Correct 4 ms 852 KB Output is correct
105 Correct 4 ms 760 KB Output is correct
106 Correct 4 ms 844 KB Output is correct
107 Correct 3 ms 788 KB Output is correct
108 Correct 3 ms 844 KB Output is correct
109 Correct 4 ms 844 KB Output is correct
110 Correct 2 ms 716 KB Output is correct
111 Correct 98 ms 20372 KB Output is correct
112 Correct 91 ms 20364 KB Output is correct
113 Correct 95 ms 20336 KB Output is correct
114 Correct 106 ms 20284 KB Output is correct
115 Correct 91 ms 20316 KB Output is correct
116 Correct 84 ms 20344 KB Output is correct
117 Correct 84 ms 20336 KB Output is correct
118 Correct 262 ms 25440 KB Output is correct
119 Correct 301 ms 25416 KB Output is correct
120 Correct 211 ms 23208 KB Output is correct
121 Correct 88 ms 20284 KB Output is correct
122 Correct 203 ms 23536 KB Output is correct
123 Correct 201 ms 23332 KB Output is correct
124 Correct 190 ms 23256 KB Output is correct
125 Correct 81 ms 20340 KB Output is correct
126 Correct 122 ms 20932 KB Output is correct
127 Correct 116 ms 20860 KB Output is correct
128 Correct 112 ms 20792 KB Output is correct
129 Correct 82 ms 20288 KB Output is correct
130 Correct 107 ms 20472 KB Output is correct
131 Correct 98 ms 20368 KB Output is correct
132 Correct 98 ms 20440 KB Output is correct
133 Correct 84 ms 20412 KB Output is correct
134 Correct 103 ms 20472 KB Output is correct
135 Correct 99 ms 20372 KB Output is correct
136 Correct 93 ms 20288 KB Output is correct
137 Correct 89 ms 20368 KB Output is correct
138 Correct 91 ms 20372 KB Output is correct
139 Correct 94 ms 20368 KB Output is correct
140 Correct 89 ms 20348 KB Output is correct
141 Correct 88 ms 20304 KB Output is correct
142 Correct 77 ms 13540 KB Output is correct
143 Correct 80 ms 13548 KB Output is correct
144 Correct 89 ms 13568 KB Output is correct
145 Correct 86 ms 13632 KB Output is correct
146 Correct 96 ms 13700 KB Output is correct
147 Correct 88 ms 13612 KB Output is correct
148 Correct 86 ms 13600 KB Output is correct
149 Correct 88 ms 13636 KB Output is correct
150 Correct 86 ms 13632 KB Output is correct
151 Correct 87 ms 13572 KB Output is correct
152 Correct 46 ms 12376 KB Output is correct
153 Correct 85 ms 13580 KB Output is correct
154 Correct 85 ms 13600 KB Output is correct
155 Correct 85 ms 13552 KB Output is correct
156 Correct 86 ms 13612 KB Output is correct
157 Correct 85 ms 13632 KB Output is correct
158 Correct 85 ms 13624 KB Output is correct
159 Correct 83 ms 13540 KB Output is correct
160 Correct 45 ms 12352 KB Output is correct
161 Correct 158 ms 18440 KB Output is correct
162 Correct 166 ms 18440 KB Output is correct
163 Correct 160 ms 18540 KB Output is correct
164 Correct 160 ms 18428 KB Output is correct
165 Correct 153 ms 18428 KB Output is correct
166 Correct 58 ms 20332 KB Output is correct
167 Correct 115 ms 22864 KB Output is correct
168 Correct 110 ms 22844 KB Output is correct
169 Correct 109 ms 22644 KB Output is correct
170 Correct 106 ms 22540 KB Output is correct
171 Correct 103 ms 22320 KB Output is correct
172 Correct 105 ms 23072 KB Output is correct
173 Correct 140 ms 13244 KB Output is correct
174 Correct 145 ms 13376 KB Output is correct
175 Correct 137 ms 13300 KB Output is correct
176 Correct 134 ms 13440 KB Output is correct