#include <bits/stdc++.h>
using namespace std;
#define F first
#define S second
const int N = 2e5 + 10, LG = 18;
int n, q, par[N][LG];
pair<int, int> a[N];
set<pair<int, int>> st;
bool check(int i){
if (st.find({a[i].first, a[i].second}) != st.end())
return 0;
bool good = 1;
st.insert({a[i].first, a[i].second});
auto p = st.find({a[i].first, a[i].second});
p++;
if (p != st.end()){
auto P = *p;
if (P.F > a[i].second)
good &= 1;
else
good &= 0;
}
p--;
if (p != st.begin()){
p--;
auto P = *p;
if (P.S < a[i].first)
good &= 1;
else
good &= 0;
}
if (!good)
st.erase({a[i].first, a[i].second});
return good;
}
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
cin >> n;
for (int i = 1; i <= n; i ++)
cin >> a[i].first >> a[i].second;
par[n + 1][0] = n + 1;
int r = 1;
for (int i = 1; i <= n; i ++){
while (r <= n and check(r))
r++;
par[i][0] = r;
st.erase({a[i].first, a[i].second});
}
for (int jump = 1; jump < LG; jump ++)
for (int i = 1; i <= n + 1; i ++)
par[i][jump] = par[par[i][jump - 1]][jump - 1];
cin >> q;
while (q--){
int u, v;
cin >> u >> v;
int ans = 0;
for (int j = LG - 1; j >= 0; j --){
if ((par[u][j]) <= v){
u = par[u][j];
ans += (1 << j);
}
}
cout << ans + 1 << '\n';
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
50 ms |
15444 KB |
Output is correct |
2 |
Correct |
49 ms |
15212 KB |
Output is correct |
3 |
Correct |
43 ms |
15224 KB |
Output is correct |
4 |
Correct |
59 ms |
15444 KB |
Output is correct |
5 |
Correct |
70 ms |
15952 KB |
Output is correct |
6 |
Correct |
37 ms |
14732 KB |
Output is correct |
7 |
Correct |
38 ms |
14972 KB |
Output is correct |
8 |
Correct |
42 ms |
14928 KB |
Output is correct |
9 |
Correct |
44 ms |
15184 KB |
Output is correct |
10 |
Correct |
46 ms |
14932 KB |
Output is correct |
11 |
Correct |
153 ms |
24912 KB |
Output is correct |
12 |
Correct |
135 ms |
23376 KB |
Output is correct |
13 |
Correct |
147 ms |
23540 KB |
Output is correct |
14 |
Correct |
174 ms |
21212 KB |
Output is correct |
15 |
Correct |
160 ms |
19268 KB |
Output is correct |
16 |
Correct |
0 ms |
2396 KB |
Output is correct |
17 |
Correct |
41 ms |
15632 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
2396 KB |
Output is correct |
2 |
Correct |
3 ms |
2396 KB |
Output is correct |
3 |
Correct |
3 ms |
2396 KB |
Output is correct |
4 |
Correct |
3 ms |
2392 KB |
Output is correct |
5 |
Correct |
3 ms |
2396 KB |
Output is correct |
6 |
Correct |
2 ms |
2396 KB |
Output is correct |
7 |
Correct |
2 ms |
2396 KB |
Output is correct |
8 |
Correct |
3 ms |
2396 KB |
Output is correct |
9 |
Correct |
2 ms |
2564 KB |
Output is correct |
10 |
Correct |
2 ms |
2396 KB |
Output is correct |
11 |
Correct |
4 ms |
2796 KB |
Output is correct |
12 |
Correct |
4 ms |
2652 KB |
Output is correct |
13 |
Correct |
3 ms |
2772 KB |
Output is correct |
14 |
Correct |
4 ms |
2652 KB |
Output is correct |
15 |
Correct |
4 ms |
2636 KB |
Output is correct |
16 |
Correct |
0 ms |
2396 KB |
Output is correct |
17 |
Correct |
2 ms |
2396 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
2396 KB |
Output is correct |
2 |
Correct |
3 ms |
2396 KB |
Output is correct |
3 |
Correct |
3 ms |
2396 KB |
Output is correct |
4 |
Correct |
3 ms |
2392 KB |
Output is correct |
5 |
Correct |
3 ms |
2396 KB |
Output is correct |
6 |
Correct |
2 ms |
2396 KB |
Output is correct |
7 |
Correct |
2 ms |
2396 KB |
Output is correct |
8 |
Correct |
3 ms |
2396 KB |
Output is correct |
9 |
Correct |
2 ms |
2564 KB |
Output is correct |
10 |
Correct |
2 ms |
2396 KB |
Output is correct |
11 |
Correct |
4 ms |
2796 KB |
Output is correct |
12 |
Correct |
4 ms |
2652 KB |
Output is correct |
13 |
Correct |
3 ms |
2772 KB |
Output is correct |
14 |
Correct |
4 ms |
2652 KB |
Output is correct |
15 |
Correct |
4 ms |
2636 KB |
Output is correct |
16 |
Correct |
0 ms |
2396 KB |
Output is correct |
17 |
Correct |
2 ms |
2396 KB |
Output is correct |
18 |
Correct |
45 ms |
3412 KB |
Output is correct |
19 |
Correct |
41 ms |
3164 KB |
Output is correct |
20 |
Correct |
46 ms |
3408 KB |
Output is correct |
21 |
Correct |
41 ms |
3156 KB |
Output is correct |
22 |
Correct |
45 ms |
3468 KB |
Output is correct |
23 |
Correct |
42 ms |
3152 KB |
Output is correct |
24 |
Correct |
41 ms |
3156 KB |
Output is correct |
25 |
Correct |
45 ms |
3168 KB |
Output is correct |
26 |
Correct |
41 ms |
3156 KB |
Output is correct |
27 |
Correct |
38 ms |
3148 KB |
Output is correct |
28 |
Correct |
30 ms |
2908 KB |
Output is correct |
29 |
Correct |
31 ms |
3024 KB |
Output is correct |
30 |
Correct |
32 ms |
2908 KB |
Output is correct |
31 |
Correct |
31 ms |
2908 KB |
Output is correct |
32 |
Correct |
35 ms |
2904 KB |
Output is correct |
33 |
Correct |
0 ms |
2392 KB |
Output is correct |
34 |
Correct |
35 ms |
3408 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
54 ms |
15952 KB |
Output is correct |
2 |
Correct |
51 ms |
15696 KB |
Output is correct |
3 |
Correct |
48 ms |
14928 KB |
Output is correct |
4 |
Correct |
48 ms |
14940 KB |
Output is correct |
5 |
Correct |
48 ms |
14952 KB |
Output is correct |
6 |
Correct |
37 ms |
14932 KB |
Output is correct |
7 |
Correct |
38 ms |
14928 KB |
Output is correct |
8 |
Correct |
41 ms |
14928 KB |
Output is correct |
9 |
Correct |
41 ms |
14940 KB |
Output is correct |
10 |
Correct |
49 ms |
15696 KB |
Output is correct |
11 |
Correct |
155 ms |
23424 KB |
Output is correct |
12 |
Correct |
167 ms |
25424 KB |
Output is correct |
13 |
Correct |
158 ms |
23292 KB |
Output is correct |
14 |
Correct |
165 ms |
19284 KB |
Output is correct |
15 |
Correct |
172 ms |
21172 KB |
Output is correct |
16 |
Correct |
1 ms |
2392 KB |
Output is correct |
17 |
Correct |
37 ms |
14980 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
50 ms |
15444 KB |
Output is correct |
2 |
Correct |
49 ms |
15212 KB |
Output is correct |
3 |
Correct |
43 ms |
15224 KB |
Output is correct |
4 |
Correct |
59 ms |
15444 KB |
Output is correct |
5 |
Correct |
70 ms |
15952 KB |
Output is correct |
6 |
Correct |
37 ms |
14732 KB |
Output is correct |
7 |
Correct |
38 ms |
14972 KB |
Output is correct |
8 |
Correct |
42 ms |
14928 KB |
Output is correct |
9 |
Correct |
44 ms |
15184 KB |
Output is correct |
10 |
Correct |
46 ms |
14932 KB |
Output is correct |
11 |
Correct |
153 ms |
24912 KB |
Output is correct |
12 |
Correct |
135 ms |
23376 KB |
Output is correct |
13 |
Correct |
147 ms |
23540 KB |
Output is correct |
14 |
Correct |
174 ms |
21212 KB |
Output is correct |
15 |
Correct |
160 ms |
19268 KB |
Output is correct |
16 |
Correct |
0 ms |
2396 KB |
Output is correct |
17 |
Correct |
41 ms |
15632 KB |
Output is correct |
18 |
Correct |
3 ms |
2396 KB |
Output is correct |
19 |
Correct |
3 ms |
2396 KB |
Output is correct |
20 |
Correct |
3 ms |
2396 KB |
Output is correct |
21 |
Correct |
3 ms |
2392 KB |
Output is correct |
22 |
Correct |
3 ms |
2396 KB |
Output is correct |
23 |
Correct |
2 ms |
2396 KB |
Output is correct |
24 |
Correct |
2 ms |
2396 KB |
Output is correct |
25 |
Correct |
3 ms |
2396 KB |
Output is correct |
26 |
Correct |
2 ms |
2564 KB |
Output is correct |
27 |
Correct |
2 ms |
2396 KB |
Output is correct |
28 |
Correct |
4 ms |
2796 KB |
Output is correct |
29 |
Correct |
4 ms |
2652 KB |
Output is correct |
30 |
Correct |
3 ms |
2772 KB |
Output is correct |
31 |
Correct |
4 ms |
2652 KB |
Output is correct |
32 |
Correct |
4 ms |
2636 KB |
Output is correct |
33 |
Correct |
0 ms |
2396 KB |
Output is correct |
34 |
Correct |
2 ms |
2396 KB |
Output is correct |
35 |
Correct |
45 ms |
3412 KB |
Output is correct |
36 |
Correct |
41 ms |
3164 KB |
Output is correct |
37 |
Correct |
46 ms |
3408 KB |
Output is correct |
38 |
Correct |
41 ms |
3156 KB |
Output is correct |
39 |
Correct |
45 ms |
3468 KB |
Output is correct |
40 |
Correct |
42 ms |
3152 KB |
Output is correct |
41 |
Correct |
41 ms |
3156 KB |
Output is correct |
42 |
Correct |
45 ms |
3168 KB |
Output is correct |
43 |
Correct |
41 ms |
3156 KB |
Output is correct |
44 |
Correct |
38 ms |
3148 KB |
Output is correct |
45 |
Correct |
30 ms |
2908 KB |
Output is correct |
46 |
Correct |
31 ms |
3024 KB |
Output is correct |
47 |
Correct |
32 ms |
2908 KB |
Output is correct |
48 |
Correct |
31 ms |
2908 KB |
Output is correct |
49 |
Correct |
35 ms |
2904 KB |
Output is correct |
50 |
Correct |
0 ms |
2392 KB |
Output is correct |
51 |
Correct |
35 ms |
3408 KB |
Output is correct |
52 |
Correct |
54 ms |
15952 KB |
Output is correct |
53 |
Correct |
51 ms |
15696 KB |
Output is correct |
54 |
Correct |
48 ms |
14928 KB |
Output is correct |
55 |
Correct |
48 ms |
14940 KB |
Output is correct |
56 |
Correct |
48 ms |
14952 KB |
Output is correct |
57 |
Correct |
37 ms |
14932 KB |
Output is correct |
58 |
Correct |
38 ms |
14928 KB |
Output is correct |
59 |
Correct |
41 ms |
14928 KB |
Output is correct |
60 |
Correct |
41 ms |
14940 KB |
Output is correct |
61 |
Correct |
49 ms |
15696 KB |
Output is correct |
62 |
Correct |
155 ms |
23424 KB |
Output is correct |
63 |
Correct |
167 ms |
25424 KB |
Output is correct |
64 |
Correct |
158 ms |
23292 KB |
Output is correct |
65 |
Correct |
165 ms |
19284 KB |
Output is correct |
66 |
Correct |
172 ms |
21172 KB |
Output is correct |
67 |
Correct |
1 ms |
2392 KB |
Output is correct |
68 |
Correct |
37 ms |
14980 KB |
Output is correct |
69 |
Correct |
126 ms |
16212 KB |
Output is correct |
70 |
Correct |
120 ms |
16768 KB |
Output is correct |
71 |
Correct |
113 ms |
15876 KB |
Output is correct |
72 |
Correct |
121 ms |
16468 KB |
Output is correct |
73 |
Correct |
122 ms |
16276 KB |
Output is correct |
74 |
Correct |
116 ms |
16976 KB |
Output is correct |
75 |
Correct |
102 ms |
15956 KB |
Output is correct |
76 |
Correct |
123 ms |
17236 KB |
Output is correct |
77 |
Correct |
108 ms |
15960 KB |
Output is correct |
78 |
Correct |
113 ms |
16072 KB |
Output is correct |
79 |
Correct |
209 ms |
25468 KB |
Output is correct |
80 |
Correct |
181 ms |
23892 KB |
Output is correct |
81 |
Correct |
198 ms |
23668 KB |
Output is correct |
82 |
Correct |
197 ms |
20048 KB |
Output is correct |
83 |
Correct |
190 ms |
19284 KB |
Output is correct |
84 |
Correct |
0 ms |
2396 KB |
Output is correct |
85 |
Correct |
93 ms |
16332 KB |
Output is correct |