#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];
int pi[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;
pi[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];
pi[ri[i][0]][0] = i;
}
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];
if (pi[i][j - 1] != INF) pi[i][j] = pi[pi[i][j - 1]][j - 1];
}
}
}
int f(int curr, int ed) {
int jumps = 0;
for (int i = 17; i >= 0; --i) {
if (hi[curr][i] <= ed) {
curr = hi[curr][i];
jumps += (1 << i);
}
}
for (int i = 17; i >= 0; --i) {
if (lo[curr][i] <= ed) {
curr = lo[curr][i];
jumps += (1 << i);
}
}
if (curr != ed) return -1;
return jumps;
}
int minimum_jumps(int A, int B, int C, int D) {
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];
}
int rr = h[C];
for (int i = 17; i >= 0; --i) {
if (ri[rr][i] != INF and pos[ri[rr][i]] <= D) rr = ri[rr][i];
}
int res = f(curr, rr);
for (int x = 17; x >= 0; --x) {
if (pi[rr][x] != INF and pos[pi[rr][x]] >= C) {
int v = f(curr, pi[rr][x]);
if (v != -1) {
rr = pi[rr][x];
res = v;
}
}
}
return res;
}
#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 |
32 ms |
70744 KB |
Output is correct |
2 |
Correct |
32 ms |
70756 KB |
Output is correct |
3 |
Correct |
308 ms |
80660 KB |
Output is correct |
4 |
Correct |
1509 ms |
83380 KB |
Output is correct |
5 |
Correct |
1201 ms |
76980 KB |
Output is correct |
6 |
Correct |
1495 ms |
83272 KB |
Output is correct |
7 |
Correct |
1028 ms |
79304 KB |
Output is correct |
8 |
Correct |
1497 ms |
83224 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
32 ms |
70728 KB |
Output is correct |
2 |
Correct |
35 ms |
70640 KB |
Output is correct |
3 |
Correct |
33 ms |
70748 KB |
Output is correct |
4 |
Correct |
34 ms |
70696 KB |
Output is correct |
5 |
Incorrect |
40 ms |
70760 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
32 ms |
70728 KB |
Output is correct |
2 |
Correct |
35 ms |
70640 KB |
Output is correct |
3 |
Correct |
33 ms |
70748 KB |
Output is correct |
4 |
Correct |
34 ms |
70696 KB |
Output is correct |
5 |
Incorrect |
40 ms |
70760 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
32 ms |
70728 KB |
Output is correct |
2 |
Correct |
39 ms |
70656 KB |
Output is correct |
3 |
Correct |
35 ms |
70736 KB |
Output is correct |
4 |
Correct |
34 ms |
70728 KB |
Output is correct |
5 |
Incorrect |
219 ms |
80912 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
35 ms |
70764 KB |
Output is correct |
2 |
Correct |
34 ms |
70708 KB |
Output is correct |
3 |
Correct |
34 ms |
70708 KB |
Output is correct |
4 |
Correct |
312 ms |
76360 KB |
Output is correct |
5 |
Correct |
823 ms |
83272 KB |
Output is correct |
6 |
Correct |
668 ms |
72812 KB |
Output is correct |
7 |
Correct |
1239 ms |
83276 KB |
Output is correct |
8 |
Correct |
696 ms |
75048 KB |
Output is correct |
9 |
Correct |
1092 ms |
83272 KB |
Output is correct |
10 |
Correct |
1036 ms |
83272 KB |
Output is correct |
11 |
Correct |
1167 ms |
83228 KB |
Output is correct |
12 |
Correct |
1093 ms |
83388 KB |
Output is correct |
13 |
Correct |
850 ms |
83272 KB |
Output is correct |
14 |
Correct |
1134 ms |
83192 KB |
Output is correct |
15 |
Correct |
896 ms |
83208 KB |
Output is correct |
16 |
Correct |
989 ms |
83144 KB |
Output is correct |
17 |
Correct |
32 ms |
70728 KB |
Output is correct |
18 |
Correct |
34 ms |
70756 KB |
Output is correct |
19 |
Correct |
33 ms |
70748 KB |
Output is correct |
20 |
Correct |
35 ms |
70752 KB |
Output is correct |
21 |
Correct |
34 ms |
70712 KB |
Output is correct |
22 |
Correct |
35 ms |
70724 KB |
Output is correct |
23 |
Correct |
33 ms |
70756 KB |
Output is correct |
24 |
Correct |
36 ms |
70636 KB |
Output is correct |
25 |
Correct |
34 ms |
70652 KB |
Output is correct |
26 |
Correct |
35 ms |
70740 KB |
Output is correct |
27 |
Correct |
51 ms |
70892 KB |
Output is correct |
28 |
Correct |
53 ms |
70856 KB |
Output is correct |
29 |
Correct |
52 ms |
70868 KB |
Output is correct |
30 |
Correct |
53 ms |
70796 KB |
Output is correct |
31 |
Correct |
51 ms |
70844 KB |
Output is correct |
32 |
Correct |
36 ms |
70732 KB |
Output is correct |
33 |
Correct |
152 ms |
77980 KB |
Output is correct |
34 |
Correct |
263 ms |
83396 KB |
Output is correct |
35 |
Correct |
215 ms |
83400 KB |
Output is correct |
36 |
Correct |
233 ms |
83280 KB |
Output is correct |
37 |
Correct |
249 ms |
83272 KB |
Output is correct |
38 |
Correct |
207 ms |
83248 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
35 ms |
70764 KB |
Output is correct |
2 |
Correct |
34 ms |
70708 KB |
Output is correct |
3 |
Correct |
34 ms |
70708 KB |
Output is correct |
4 |
Correct |
312 ms |
76360 KB |
Output is correct |
5 |
Correct |
823 ms |
83272 KB |
Output is correct |
6 |
Correct |
668 ms |
72812 KB |
Output is correct |
7 |
Correct |
1239 ms |
83276 KB |
Output is correct |
8 |
Correct |
696 ms |
75048 KB |
Output is correct |
9 |
Correct |
1092 ms |
83272 KB |
Output is correct |
10 |
Correct |
1036 ms |
83272 KB |
Output is correct |
11 |
Correct |
1167 ms |
83228 KB |
Output is correct |
12 |
Correct |
1093 ms |
83388 KB |
Output is correct |
13 |
Correct |
850 ms |
83272 KB |
Output is correct |
14 |
Correct |
1134 ms |
83192 KB |
Output is correct |
15 |
Correct |
896 ms |
83208 KB |
Output is correct |
16 |
Correct |
989 ms |
83144 KB |
Output is correct |
17 |
Correct |
32 ms |
70728 KB |
Output is correct |
18 |
Correct |
34 ms |
70756 KB |
Output is correct |
19 |
Correct |
33 ms |
70748 KB |
Output is correct |
20 |
Correct |
35 ms |
70752 KB |
Output is correct |
21 |
Correct |
34 ms |
70712 KB |
Output is correct |
22 |
Correct |
35 ms |
70724 KB |
Output is correct |
23 |
Correct |
33 ms |
70756 KB |
Output is correct |
24 |
Correct |
36 ms |
70636 KB |
Output is correct |
25 |
Correct |
34 ms |
70652 KB |
Output is correct |
26 |
Correct |
35 ms |
70740 KB |
Output is correct |
27 |
Correct |
51 ms |
70892 KB |
Output is correct |
28 |
Correct |
53 ms |
70856 KB |
Output is correct |
29 |
Correct |
52 ms |
70868 KB |
Output is correct |
30 |
Correct |
53 ms |
70796 KB |
Output is correct |
31 |
Correct |
51 ms |
70844 KB |
Output is correct |
32 |
Correct |
36 ms |
70732 KB |
Output is correct |
33 |
Correct |
152 ms |
77980 KB |
Output is correct |
34 |
Correct |
263 ms |
83396 KB |
Output is correct |
35 |
Correct |
215 ms |
83400 KB |
Output is correct |
36 |
Correct |
233 ms |
83280 KB |
Output is correct |
37 |
Correct |
249 ms |
83272 KB |
Output is correct |
38 |
Correct |
207 ms |
83248 KB |
Output is correct |
39 |
Correct |
35 ms |
70736 KB |
Output is correct |
40 |
Correct |
32 ms |
70728 KB |
Output is correct |
41 |
Correct |
33 ms |
70712 KB |
Output is correct |
42 |
Correct |
276 ms |
76428 KB |
Output is correct |
43 |
Correct |
1092 ms |
83264 KB |
Output is correct |
44 |
Correct |
512 ms |
72776 KB |
Output is correct |
45 |
Correct |
1083 ms |
83276 KB |
Output is correct |
46 |
Correct |
525 ms |
75068 KB |
Output is correct |
47 |
Correct |
975 ms |
83172 KB |
Output is correct |
48 |
Correct |
1113 ms |
83272 KB |
Output is correct |
49 |
Correct |
958 ms |
83248 KB |
Output is correct |
50 |
Correct |
1141 ms |
83232 KB |
Output is correct |
51 |
Correct |
1035 ms |
83276 KB |
Output is correct |
52 |
Correct |
1122 ms |
83268 KB |
Output is correct |
53 |
Correct |
930 ms |
83488 KB |
Output is correct |
54 |
Correct |
918 ms |
83272 KB |
Output is correct |
55 |
Correct |
36 ms |
70728 KB |
Output is correct |
56 |
Correct |
311 ms |
83332 KB |
Output is correct |
57 |
Correct |
1066 ms |
83280 KB |
Output is correct |
58 |
Correct |
500 ms |
72960 KB |
Output is correct |
59 |
Correct |
1069 ms |
83340 KB |
Output is correct |
60 |
Correct |
441 ms |
75196 KB |
Output is correct |
61 |
Correct |
1237 ms |
83276 KB |
Output is correct |
62 |
Correct |
1250 ms |
83284 KB |
Output is correct |
63 |
Correct |
1062 ms |
83248 KB |
Output is correct |
64 |
Correct |
1225 ms |
83260 KB |
Output is correct |
65 |
Correct |
1195 ms |
83276 KB |
Output is correct |
66 |
Correct |
1245 ms |
83284 KB |
Output is correct |
67 |
Correct |
1145 ms |
83276 KB |
Output is correct |
68 |
Correct |
1072 ms |
83152 KB |
Output is correct |
69 |
Correct |
38 ms |
70656 KB |
Output is correct |
70 |
Correct |
38 ms |
70640 KB |
Output is correct |
71 |
Correct |
39 ms |
70776 KB |
Output is correct |
72 |
Correct |
41 ms |
70668 KB |
Output is correct |
73 |
Correct |
43 ms |
70712 KB |
Output is correct |
74 |
Correct |
40 ms |
70720 KB |
Output is correct |
75 |
Correct |
45 ms |
70748 KB |
Output is correct |
76 |
Correct |
46 ms |
70696 KB |
Output is correct |
77 |
Correct |
39 ms |
70736 KB |
Output is correct |
78 |
Correct |
56 ms |
70636 KB |
Output is correct |
79 |
Correct |
40 ms |
70752 KB |
Output is correct |
80 |
Correct |
46 ms |
70668 KB |
Output is correct |
81 |
Correct |
43 ms |
70728 KB |
Output is correct |
82 |
Correct |
40 ms |
70680 KB |
Output is correct |
83 |
Correct |
43 ms |
70732 KB |
Output is correct |
84 |
Correct |
39 ms |
70660 KB |
Output is correct |
85 |
Correct |
43 ms |
70708 KB |
Output is correct |
86 |
Correct |
55 ms |
70848 KB |
Output is correct |
87 |
Correct |
59 ms |
70768 KB |
Output is correct |
88 |
Correct |
58 ms |
70820 KB |
Output is correct |
89 |
Correct |
61 ms |
70872 KB |
Output is correct |
90 |
Correct |
53 ms |
70880 KB |
Output is correct |
91 |
Correct |
41 ms |
70700 KB |
Output is correct |
92 |
Correct |
38 ms |
70724 KB |
Output is correct |
93 |
Correct |
58 ms |
70776 KB |
Output is correct |
94 |
Correct |
54 ms |
70864 KB |
Output is correct |
95 |
Correct |
51 ms |
70784 KB |
Output is correct |
96 |
Correct |
54 ms |
70852 KB |
Output is correct |
97 |
Correct |
52 ms |
70804 KB |
Output is correct |
98 |
Correct |
35 ms |
70732 KB |
Output is correct |
99 |
Correct |
266 ms |
83252 KB |
Output is correct |
100 |
Correct |
260 ms |
83284 KB |
Output is correct |
101 |
Correct |
216 ms |
83272 KB |
Output is correct |
102 |
Correct |
237 ms |
83236 KB |
Output is correct |
103 |
Correct |
260 ms |
83280 KB |
Output is correct |
104 |
Correct |
202 ms |
83276 KB |
Output is correct |
105 |
Correct |
37 ms |
70728 KB |
Output is correct |
106 |
Correct |
155 ms |
77900 KB |
Output is correct |
107 |
Correct |
266 ms |
83368 KB |
Output is correct |
108 |
Correct |
213 ms |
83244 KB |
Output is correct |
109 |
Correct |
235 ms |
83192 KB |
Output is correct |
110 |
Correct |
258 ms |
83196 KB |
Output is correct |
111 |
Correct |
204 ms |
83372 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
32 ms |
70744 KB |
Output is correct |
2 |
Correct |
32 ms |
70756 KB |
Output is correct |
3 |
Correct |
308 ms |
80660 KB |
Output is correct |
4 |
Correct |
1509 ms |
83380 KB |
Output is correct |
5 |
Correct |
1201 ms |
76980 KB |
Output is correct |
6 |
Correct |
1495 ms |
83272 KB |
Output is correct |
7 |
Correct |
1028 ms |
79304 KB |
Output is correct |
8 |
Correct |
1497 ms |
83224 KB |
Output is correct |
9 |
Correct |
32 ms |
70728 KB |
Output is correct |
10 |
Correct |
35 ms |
70640 KB |
Output is correct |
11 |
Correct |
33 ms |
70748 KB |
Output is correct |
12 |
Correct |
34 ms |
70696 KB |
Output is correct |
13 |
Incorrect |
40 ms |
70760 KB |
Output isn't correct |
14 |
Halted |
0 ms |
0 KB |
- |