Submission #507678

# Submission time Handle Problem Language Result Execution time Memory
507678 2022-01-13T00:57:56 Z penguinhacker Osumnjičeni (COCI21_osumnjiceni) C++14
110 / 110
275 ms 26808 KB
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define ar array

const int mxN=2e5;
int n, q, l[mxN], r[mxN], anc[mxN][18];

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cin >> n;
	for (int i=0; i<n; ++i)
		cin >> l[i] >> r[i];
	set<ar<int, 2>> s;
	for (int i=n-1, j=n-1; ~i; --i) {
		while(1) {
			if (s.empty()||r[i]<(*s.begin())[0]||l[i]>(*s.rbegin())[1]) {
				s.insert({l[i], r[i]});
				break;
			}
			auto it=s.lower_bound({l[i], -1});
			if ((it==s.end()||r[i]<(*it)[0])&&(it==s.begin()||(*prev(it))[1]<l[i])) {
				s.insert({l[i], r[i]});
				break;
			}
			s.erase({l[j], r[j]});
			--j;
		}
		anc[i][0]=j+1;
	}
	for (int j=1; j<18; ++j)
		for (int i=0; i<n; ++i)
			anc[i][j]=anc[i][j-1]==n?n:anc[anc[i][j-1]][j-1];
	cin >> q;
	while(q--) {
		int a, b;
		cin >> a >> b, --a, --b;
		int ans=0;
		for (int i=17; ~i; --i)
			if (anc[a][i]<=b) {
				ans+=1<<i;
				a=anc[a][i];
			}
		cout << ans+1 << "\n";
	}
	return 0;
}
# Verdict Execution time Memory Grader output
1 Correct 88 ms 15928 KB Output is correct
2 Correct 81 ms 15556 KB Output is correct
3 Correct 76 ms 15796 KB Output is correct
4 Correct 78 ms 15608 KB Output is correct
5 Correct 80 ms 16604 KB Output is correct
6 Correct 68 ms 15148 KB Output is correct
7 Correct 74 ms 15384 KB Output is correct
8 Correct 87 ms 15256 KB Output is correct
9 Correct 85 ms 15816 KB Output is correct
10 Correct 87 ms 15292 KB Output is correct
11 Correct 169 ms 25232 KB Output is correct
12 Correct 190 ms 23996 KB Output is correct
13 Correct 151 ms 23712 KB Output is correct
14 Correct 179 ms 21512 KB Output is correct
15 Correct 172 ms 19700 KB Output is correct
16 Correct 0 ms 316 KB Output is correct
17 Correct 73 ms 15880 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 4 ms 696 KB Output is correct
2 Correct 4 ms 748 KB Output is correct
3 Correct 3 ms 668 KB Output is correct
4 Correct 3 ms 716 KB Output is correct
5 Correct 3 ms 716 KB Output is correct
6 Correct 3 ms 800 KB Output is correct
7 Correct 3 ms 744 KB Output is correct
8 Correct 3 ms 764 KB Output is correct
9 Correct 4 ms 716 KB Output is correct
10 Correct 4 ms 716 KB Output is correct
11 Correct 4 ms 988 KB Output is correct
12 Correct 4 ms 972 KB Output is correct
13 Correct 4 ms 844 KB Output is correct
14 Correct 4 ms 744 KB Output is correct
15 Correct 4 ms 716 KB Output is correct
16 Correct 0 ms 320 KB Output is correct
17 Correct 3 ms 712 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 4 ms 696 KB Output is correct
2 Correct 4 ms 748 KB Output is correct
3 Correct 3 ms 668 KB Output is correct
4 Correct 3 ms 716 KB Output is correct
5 Correct 3 ms 716 KB Output is correct
6 Correct 3 ms 800 KB Output is correct
7 Correct 3 ms 744 KB Output is correct
8 Correct 3 ms 764 KB Output is correct
9 Correct 4 ms 716 KB Output is correct
10 Correct 4 ms 716 KB Output is correct
11 Correct 4 ms 988 KB Output is correct
12 Correct 4 ms 972 KB Output is correct
13 Correct 4 ms 844 KB Output is correct
14 Correct 4 ms 744 KB Output is correct
15 Correct 4 ms 716 KB Output is correct
16 Correct 0 ms 320 KB Output is correct
17 Correct 3 ms 712 KB Output is correct
18 Correct 74 ms 2060 KB Output is correct
19 Correct 59 ms 1688 KB Output is correct
20 Correct 67 ms 1728 KB Output is correct
21 Correct 61 ms 1728 KB Output is correct
22 Correct 63 ms 1716 KB Output is correct
23 Correct 60 ms 1676 KB Output is correct
24 Correct 65 ms 1740 KB Output is correct
25 Correct 63 ms 1732 KB Output is correct
26 Correct 61 ms 1760 KB Output is correct
27 Correct 63 ms 1748 KB Output is correct
28 Correct 44 ms 1648 KB Output is correct
29 Correct 47 ms 1432 KB Output is correct
30 Correct 50 ms 1360 KB Output is correct
31 Correct 48 ms 1248 KB Output is correct
32 Correct 47 ms 1328 KB Output is correct
33 Correct 0 ms 332 KB Output is correct
34 Correct 54 ms 1880 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 79 ms 16580 KB Output is correct
2 Correct 90 ms 15948 KB Output is correct
3 Correct 76 ms 15052 KB Output is correct
4 Correct 73 ms 14840 KB Output is correct
5 Correct 74 ms 15128 KB Output is correct
6 Correct 69 ms 15796 KB Output is correct
7 Correct 87 ms 15068 KB Output is correct
8 Correct 80 ms 16452 KB Output is correct
9 Correct 78 ms 16488 KB Output is correct
10 Correct 94 ms 17468 KB Output is correct
11 Correct 153 ms 23720 KB Output is correct
12 Correct 171 ms 26012 KB Output is correct
13 Correct 159 ms 23396 KB Output is correct
14 Correct 161 ms 19800 KB Output is correct
15 Correct 188 ms 21564 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 71 ms 15460 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 88 ms 15928 KB Output is correct
2 Correct 81 ms 15556 KB Output is correct
3 Correct 76 ms 15796 KB Output is correct
4 Correct 78 ms 15608 KB Output is correct
5 Correct 80 ms 16604 KB Output is correct
6 Correct 68 ms 15148 KB Output is correct
7 Correct 74 ms 15384 KB Output is correct
8 Correct 87 ms 15256 KB Output is correct
9 Correct 85 ms 15816 KB Output is correct
10 Correct 87 ms 15292 KB Output is correct
11 Correct 169 ms 25232 KB Output is correct
12 Correct 190 ms 23996 KB Output is correct
13 Correct 151 ms 23712 KB Output is correct
14 Correct 179 ms 21512 KB Output is correct
15 Correct 172 ms 19700 KB Output is correct
16 Correct 0 ms 316 KB Output is correct
17 Correct 73 ms 15880 KB Output is correct
18 Correct 4 ms 696 KB Output is correct
19 Correct 4 ms 748 KB Output is correct
20 Correct 3 ms 668 KB Output is correct
21 Correct 3 ms 716 KB Output is correct
22 Correct 3 ms 716 KB Output is correct
23 Correct 3 ms 800 KB Output is correct
24 Correct 3 ms 744 KB Output is correct
25 Correct 3 ms 764 KB Output is correct
26 Correct 4 ms 716 KB Output is correct
27 Correct 4 ms 716 KB Output is correct
28 Correct 4 ms 988 KB Output is correct
29 Correct 4 ms 972 KB Output is correct
30 Correct 4 ms 844 KB Output is correct
31 Correct 4 ms 744 KB Output is correct
32 Correct 4 ms 716 KB Output is correct
33 Correct 0 ms 320 KB Output is correct
34 Correct 3 ms 712 KB Output is correct
35 Correct 74 ms 2060 KB Output is correct
36 Correct 59 ms 1688 KB Output is correct
37 Correct 67 ms 1728 KB Output is correct
38 Correct 61 ms 1728 KB Output is correct
39 Correct 63 ms 1716 KB Output is correct
40 Correct 60 ms 1676 KB Output is correct
41 Correct 65 ms 1740 KB Output is correct
42 Correct 63 ms 1732 KB Output is correct
43 Correct 61 ms 1760 KB Output is correct
44 Correct 63 ms 1748 KB Output is correct
45 Correct 44 ms 1648 KB Output is correct
46 Correct 47 ms 1432 KB Output is correct
47 Correct 50 ms 1360 KB Output is correct
48 Correct 48 ms 1248 KB Output is correct
49 Correct 47 ms 1328 KB Output is correct
50 Correct 0 ms 332 KB Output is correct
51 Correct 54 ms 1880 KB Output is correct
52 Correct 79 ms 16580 KB Output is correct
53 Correct 90 ms 15948 KB Output is correct
54 Correct 76 ms 15052 KB Output is correct
55 Correct 73 ms 14840 KB Output is correct
56 Correct 74 ms 15128 KB Output is correct
57 Correct 69 ms 15796 KB Output is correct
58 Correct 87 ms 15068 KB Output is correct
59 Correct 80 ms 16452 KB Output is correct
60 Correct 78 ms 16488 KB Output is correct
61 Correct 94 ms 17468 KB Output is correct
62 Correct 153 ms 23720 KB Output is correct
63 Correct 171 ms 26012 KB Output is correct
64 Correct 159 ms 23396 KB Output is correct
65 Correct 161 ms 19800 KB Output is correct
66 Correct 188 ms 21564 KB Output is correct
67 Correct 0 ms 204 KB Output is correct
68 Correct 71 ms 15460 KB Output is correct
69 Correct 247 ms 17312 KB Output is correct
70 Correct 275 ms 19156 KB Output is correct
71 Correct 232 ms 18876 KB Output is correct
72 Correct 237 ms 18664 KB Output is correct
73 Correct 255 ms 17176 KB Output is correct
74 Correct 256 ms 17692 KB Output is correct
75 Correct 243 ms 18112 KB Output is correct
76 Correct 252 ms 20732 KB Output is correct
77 Correct 232 ms 17344 KB Output is correct
78 Correct 240 ms 16964 KB Output is correct
79 Correct 227 ms 26808 KB Output is correct
80 Correct 217 ms 24544 KB Output is correct
81 Correct 219 ms 24392 KB Output is correct
82 Correct 241 ms 20720 KB Output is correct
83 Correct 222 ms 20492 KB Output is correct
84 Correct 1 ms 308 KB Output is correct
85 Correct 142 ms 17792 KB Output is correct