#include <bits/stdc++.h>
using namespace std;
struct C_HASH {
static uint64_t splitmix64(uint64_t x) {
// http://xorshift.di.unimi.it/splitmix64.c
x += 0x9e3779b97f4a7c15;
x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
return x ^ (x >> 31);
}
size_t operator()(uint64_t x) const {
static const uint64_t FIXED_RANDOM =
chrono::steady_clock::now().time_since_epoch().count();
return splitmix64(x + FIXED_RANDOM);
}
};
mt19937 rng(chrono::system_clock::now().time_since_epoch().count());
typedef pair<int, int> ii;
typedef tuple<int, int, int> iii;
typedef long long ll;
const int INF = 1e9;
const ll INFL = 1e18;
const int MOD = 1000000007;
#define SIZE(a) (int)(a).size()
#define endl '\n'
#define all(x) x.begin(), x.end()
#define ALL(x) begin(x), end(x)
int pos[200005];
int h[200005];
int lo[200005][18];
int hi[200005][18];
int le[200005][18];
int ri[200005][18];
void init(int N, std::vector<int> H) {
for (int i = 0; i < 200005; ++i) {
for (int j = 0; j < 18; ++j) {
lo[i][j] = INF;
hi[i][j] = INF;
le[i][j] = INF;
ri[i][j] = INF;
}
}
for (int i = 0; i < N; ++i) {
h[i] = H[i];
pos[H[i]] = i;
}
set<int> s;
for (int i = N; i >= 1; --i) {
s.insert(pos[i]);
auto l = s.lower_bound(pos[i]);
if (l != s.begin()) {
l--;
le[i][0] = H[*l];
}
auto r = s.upper_bound(pos[i]);
if (r != s.end()) ri[i][0] = H[*r];
hi[i][0] = max(le[i][0], ri[i][0]);
lo[i][0] = min(le[i][0], ri[i][0]);
}
for (int j = 1; j < 18; ++j) {
for (int i = 1; i <= N; ++i) {
if (lo[i][j - 1] != INF) lo[i][j] = lo[lo[i][j - 1]][j - 1];
if (hi[i][j - 1] != INF) hi[i][j] = hi[hi[i][j - 1]][j - 1];
if (le[i][j - 1] != INF) le[i][j] = le[le[i][j - 1]][j - 1];
if (ri[i][j - 1] != INF) ri[i][j] = ri[ri[i][j - 1]][j - 1];
}
}
}
int minimum_jumps(int A, int B, int C, int D) {
int jumps = 0;
int curr = h[B];
for (int i = 17; i >= 0; --i) {
if (le[curr][i] != INF and pos[le[curr][i]] >= A and le[curr][i] < h[C]) curr = le[curr][i];
}
for (int i = 17; i >= 0; --i) {
if (hi[curr][i] <= h[C]) {
curr = hi[curr][i];
jumps += (1 << i);
}
}
for (int i = 17; i >= 0; --i) {
if (lo[curr][i] <= h[C]) {
curr = lo[curr][i];
jumps += (1 << i);
}
}
if (curr != h[C]) return -1;
return jumps;
}
#ifdef LOCAL_PROJECT
int main() {
int N, Q;
assert(2 == scanf("%d %d", &N, &Q));
std::vector<int> H(N);
for (int i = 0; i < N; ++i) {
assert(1 == scanf("%d", &H[i]));
}
init(N, H);
for (int i = 0; i < Q; ++i) {
int A, B, C, D;
assert(4 == scanf("%d %d %d %d", &A, &B, &C, &D));
printf("%d\n", minimum_jumps(A, B, C, D));
}
return 0;
}
#else
#include "jumps.h"
#define cerr \
if (false) cerr
#endif
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
26 ms |
56656 KB |
Output is correct |
2 |
Correct |
27 ms |
56648 KB |
Output is correct |
3 |
Correct |
249 ms |
66552 KB |
Output is correct |
4 |
Correct |
1082 ms |
69268 KB |
Output is correct |
5 |
Correct |
900 ms |
63036 KB |
Output is correct |
6 |
Correct |
980 ms |
69188 KB |
Output is correct |
7 |
Correct |
861 ms |
65196 KB |
Output is correct |
8 |
Correct |
762 ms |
69064 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
26 ms |
56608 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
26 ms |
56608 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
30 ms |
56656 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
27 ms |
56604 KB |
Output is correct |
2 |
Correct |
32 ms |
56668 KB |
Output is correct |
3 |
Correct |
27 ms |
56568 KB |
Output is correct |
4 |
Correct |
304 ms |
62292 KB |
Output is correct |
5 |
Correct |
798 ms |
69248 KB |
Output is correct |
6 |
Correct |
614 ms |
58628 KB |
Output is correct |
7 |
Correct |
868 ms |
69096 KB |
Output is correct |
8 |
Correct |
572 ms |
60868 KB |
Output is correct |
9 |
Correct |
880 ms |
69272 KB |
Output is correct |
10 |
Correct |
929 ms |
69144 KB |
Output is correct |
11 |
Correct |
1097 ms |
69188 KB |
Output is correct |
12 |
Correct |
1032 ms |
69064 KB |
Output is correct |
13 |
Correct |
928 ms |
69160 KB |
Output is correct |
14 |
Correct |
1127 ms |
69184 KB |
Output is correct |
15 |
Correct |
860 ms |
69164 KB |
Output is correct |
16 |
Correct |
968 ms |
69188 KB |
Output is correct |
17 |
Correct |
29 ms |
56568 KB |
Output is correct |
18 |
Correct |
26 ms |
56648 KB |
Output is correct |
19 |
Correct |
28 ms |
56648 KB |
Output is correct |
20 |
Correct |
31 ms |
56656 KB |
Output is correct |
21 |
Correct |
29 ms |
56612 KB |
Output is correct |
22 |
Correct |
28 ms |
56644 KB |
Output is correct |
23 |
Correct |
31 ms |
56620 KB |
Output is correct |
24 |
Correct |
28 ms |
56672 KB |
Output is correct |
25 |
Correct |
28 ms |
56608 KB |
Output is correct |
26 |
Correct |
30 ms |
56640 KB |
Output is correct |
27 |
Correct |
52 ms |
56708 KB |
Output is correct |
28 |
Correct |
45 ms |
56672 KB |
Output is correct |
29 |
Correct |
35 ms |
56780 KB |
Output is correct |
30 |
Correct |
46 ms |
56784 KB |
Output is correct |
31 |
Correct |
40 ms |
56752 KB |
Output is correct |
32 |
Correct |
26 ms |
56656 KB |
Output is correct |
33 |
Correct |
133 ms |
63924 KB |
Output is correct |
34 |
Correct |
235 ms |
69184 KB |
Output is correct |
35 |
Correct |
187 ms |
69168 KB |
Output is correct |
36 |
Correct |
200 ms |
69192 KB |
Output is correct |
37 |
Correct |
224 ms |
69160 KB |
Output is correct |
38 |
Correct |
197 ms |
69280 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
27 ms |
56604 KB |
Output is correct |
2 |
Correct |
32 ms |
56668 KB |
Output is correct |
3 |
Correct |
27 ms |
56568 KB |
Output is correct |
4 |
Correct |
304 ms |
62292 KB |
Output is correct |
5 |
Correct |
798 ms |
69248 KB |
Output is correct |
6 |
Correct |
614 ms |
58628 KB |
Output is correct |
7 |
Correct |
868 ms |
69096 KB |
Output is correct |
8 |
Correct |
572 ms |
60868 KB |
Output is correct |
9 |
Correct |
880 ms |
69272 KB |
Output is correct |
10 |
Correct |
929 ms |
69144 KB |
Output is correct |
11 |
Correct |
1097 ms |
69188 KB |
Output is correct |
12 |
Correct |
1032 ms |
69064 KB |
Output is correct |
13 |
Correct |
928 ms |
69160 KB |
Output is correct |
14 |
Correct |
1127 ms |
69184 KB |
Output is correct |
15 |
Correct |
860 ms |
69164 KB |
Output is correct |
16 |
Correct |
968 ms |
69188 KB |
Output is correct |
17 |
Correct |
29 ms |
56568 KB |
Output is correct |
18 |
Correct |
26 ms |
56648 KB |
Output is correct |
19 |
Correct |
28 ms |
56648 KB |
Output is correct |
20 |
Correct |
31 ms |
56656 KB |
Output is correct |
21 |
Correct |
29 ms |
56612 KB |
Output is correct |
22 |
Correct |
28 ms |
56644 KB |
Output is correct |
23 |
Correct |
31 ms |
56620 KB |
Output is correct |
24 |
Correct |
28 ms |
56672 KB |
Output is correct |
25 |
Correct |
28 ms |
56608 KB |
Output is correct |
26 |
Correct |
30 ms |
56640 KB |
Output is correct |
27 |
Correct |
52 ms |
56708 KB |
Output is correct |
28 |
Correct |
45 ms |
56672 KB |
Output is correct |
29 |
Correct |
35 ms |
56780 KB |
Output is correct |
30 |
Correct |
46 ms |
56784 KB |
Output is correct |
31 |
Correct |
40 ms |
56752 KB |
Output is correct |
32 |
Correct |
26 ms |
56656 KB |
Output is correct |
33 |
Correct |
133 ms |
63924 KB |
Output is correct |
34 |
Correct |
235 ms |
69184 KB |
Output is correct |
35 |
Correct |
187 ms |
69168 KB |
Output is correct |
36 |
Correct |
200 ms |
69192 KB |
Output is correct |
37 |
Correct |
224 ms |
69160 KB |
Output is correct |
38 |
Correct |
197 ms |
69280 KB |
Output is correct |
39 |
Correct |
27 ms |
56640 KB |
Output is correct |
40 |
Correct |
26 ms |
56612 KB |
Output is correct |
41 |
Correct |
31 ms |
56704 KB |
Output is correct |
42 |
Correct |
318 ms |
62396 KB |
Output is correct |
43 |
Correct |
1024 ms |
69064 KB |
Output is correct |
44 |
Correct |
555 ms |
58824 KB |
Output is correct |
45 |
Correct |
1044 ms |
69064 KB |
Output is correct |
46 |
Correct |
509 ms |
61000 KB |
Output is correct |
47 |
Correct |
1055 ms |
69084 KB |
Output is correct |
48 |
Correct |
1083 ms |
69112 KB |
Output is correct |
49 |
Correct |
1068 ms |
69188 KB |
Output is correct |
50 |
Correct |
996 ms |
69068 KB |
Output is correct |
51 |
Correct |
865 ms |
69064 KB |
Output is correct |
52 |
Correct |
902 ms |
69132 KB |
Output is correct |
53 |
Correct |
972 ms |
69180 KB |
Output is correct |
54 |
Correct |
1010 ms |
69160 KB |
Output is correct |
55 |
Correct |
27 ms |
56648 KB |
Output is correct |
56 |
Correct |
272 ms |
69196 KB |
Output is correct |
57 |
Correct |
867 ms |
69064 KB |
Output is correct |
58 |
Correct |
488 ms |
58864 KB |
Output is correct |
59 |
Correct |
948 ms |
69192 KB |
Output is correct |
60 |
Correct |
421 ms |
61116 KB |
Output is correct |
61 |
Correct |
948 ms |
69184 KB |
Output is correct |
62 |
Correct |
1098 ms |
69292 KB |
Output is correct |
63 |
Correct |
1059 ms |
69280 KB |
Output is correct |
64 |
Correct |
952 ms |
69188 KB |
Output is correct |
65 |
Correct |
823 ms |
69160 KB |
Output is correct |
66 |
Correct |
926 ms |
69204 KB |
Output is correct |
67 |
Correct |
1000 ms |
69184 KB |
Output is correct |
68 |
Correct |
995 ms |
69180 KB |
Output is correct |
69 |
Correct |
31 ms |
56540 KB |
Output is correct |
70 |
Correct |
28 ms |
56624 KB |
Output is correct |
71 |
Correct |
35 ms |
56656 KB |
Output is correct |
72 |
Correct |
29 ms |
56648 KB |
Output is correct |
73 |
Correct |
28 ms |
56640 KB |
Output is correct |
74 |
Correct |
28 ms |
56656 KB |
Output is correct |
75 |
Correct |
29 ms |
56648 KB |
Output is correct |
76 |
Correct |
26 ms |
56656 KB |
Output is correct |
77 |
Correct |
27 ms |
56656 KB |
Output is correct |
78 |
Correct |
28 ms |
56576 KB |
Output is correct |
79 |
Correct |
29 ms |
56616 KB |
Output is correct |
80 |
Correct |
30 ms |
56656 KB |
Output is correct |
81 |
Correct |
29 ms |
56596 KB |
Output is correct |
82 |
Correct |
30 ms |
56656 KB |
Output is correct |
83 |
Correct |
30 ms |
56664 KB |
Output is correct |
84 |
Correct |
32 ms |
56648 KB |
Output is correct |
85 |
Correct |
32 ms |
56620 KB |
Output is correct |
86 |
Correct |
47 ms |
56760 KB |
Output is correct |
87 |
Correct |
47 ms |
56656 KB |
Output is correct |
88 |
Correct |
48 ms |
56684 KB |
Output is correct |
89 |
Correct |
50 ms |
56704 KB |
Output is correct |
90 |
Correct |
43 ms |
56736 KB |
Output is correct |
91 |
Correct |
28 ms |
56748 KB |
Output is correct |
92 |
Correct |
27 ms |
56648 KB |
Output is correct |
93 |
Correct |
44 ms |
56696 KB |
Output is correct |
94 |
Correct |
45 ms |
56768 KB |
Output is correct |
95 |
Correct |
48 ms |
56776 KB |
Output is correct |
96 |
Correct |
45 ms |
56680 KB |
Output is correct |
97 |
Correct |
44 ms |
56660 KB |
Output is correct |
98 |
Correct |
28 ms |
56580 KB |
Output is correct |
99 |
Correct |
251 ms |
69168 KB |
Output is correct |
100 |
Correct |
245 ms |
69176 KB |
Output is correct |
101 |
Correct |
212 ms |
69292 KB |
Output is correct |
102 |
Correct |
218 ms |
69192 KB |
Output is correct |
103 |
Correct |
224 ms |
69064 KB |
Output is correct |
104 |
Correct |
190 ms |
69220 KB |
Output is correct |
105 |
Correct |
27 ms |
56648 KB |
Output is correct |
106 |
Correct |
131 ms |
63860 KB |
Output is correct |
107 |
Correct |
240 ms |
69184 KB |
Output is correct |
108 |
Correct |
186 ms |
69288 KB |
Output is correct |
109 |
Correct |
207 ms |
69212 KB |
Output is correct |
110 |
Correct |
218 ms |
69168 KB |
Output is correct |
111 |
Correct |
191 ms |
69184 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
26 ms |
56656 KB |
Output is correct |
2 |
Correct |
27 ms |
56648 KB |
Output is correct |
3 |
Correct |
249 ms |
66552 KB |
Output is correct |
4 |
Correct |
1082 ms |
69268 KB |
Output is correct |
5 |
Correct |
900 ms |
63036 KB |
Output is correct |
6 |
Correct |
980 ms |
69188 KB |
Output is correct |
7 |
Correct |
861 ms |
65196 KB |
Output is correct |
8 |
Correct |
762 ms |
69064 KB |
Output is correct |
9 |
Incorrect |
26 ms |
56608 KB |
Output isn't correct |
10 |
Halted |
0 ms |
0 KB |
- |