#include <bits/stdc++.h>
#include "jumps.h"
using namespace std;
// #define int long long
#define ll long long
#define ff first
#define ss second
#define pint pair < int , int >
#define fast ios_base::sync_with_stdio(NULL); cin.tie(NULL)
typedef vector < int > vint;
const int inf = 1e9 + 9;
const int mxn = 2e5 + 5;
const int mod = 1e9 + 7;
int n;
int h[mxn] , le[mxn] , ri[mxn];
int inv[mxn];
int spx[19][mxn] , spn[19][mxn];
vint v;
struct node {
int tl , tm , tr;
int mx;
node *left , *right;
node (int l , int r) {
tl = l , tr = r , tm = (l + r) / 2;
mx = 0;
left = right = NULL;
}
void build() {
if (tl == tr) {
mx = h[tl];
return;
}
left = new node(tl , tm);
right = new node(tm+1 , tr);
left -> build();
right -> build();
mx = max(left -> mx , right -> mx);
}
pint query(int l , int r , int x) {
if (tl == tr) {
if (mx > x) return {-1 , 0};
return {mx , 1};
}
if (tl == l && tr == r) {
if (mx < x) return {mx , 1};
pint pr = right -> query(tm+1 , r , x);
if (pr.ss == 0) return pr;
pint pl = left -> query(tl , tm , x);
return {max(pl.ff , pr.ff) , 0};
}
if (r <= tm) return left -> query(l , r , x);
if (l > tm) return right -> query(l , r , x);
pint pr = right -> query(tm+1 , r , x);
if (pr.ss == 0) return pr;
pint pl = left -> query(l , tm , x);
return {max(pl.ff , pr.ff) , pl.ss};
}
} *root;
void init(int N , vint H) {
n = N;
for (int i = 0; i < n; i++) {
h[i] = H[i];
inv[h[i]] = i;
}
root = new node(0 , n-1);
root -> build();
for (int i = 0; i < n; i++) {
while (v.size() > 0 && v.back() < h[i]) {
ri[v.back()] = h[i];
v.pop_back();
}
if (v.size() > 0) le[h[i]] = v.back();
v.push_back(h[i]);
}
for (int i = 0; i < n; i++) {
spx[0][h[i]] = max(le[h[i]] , ri[h[i]]);
spn[0][h[i]] = min(le[h[i]] , ri[h[i]]);
if (spn[0][h[i]] == 0) spn[0][h[i]] = spx[0][h[i]];
}
for (int j = 1; j < 19; j++) {
for (int i = 0; i < n; i++) {
spx[j][h[i]] = spx[j-1][spx[j-1][h[i]]];
spn[j][h[i]] = spn[j-1][spn[j-1][h[i]]];
}
}
}
int func(int a , int d) {
if (h[a] > h[d]) return -1;
int dis = 0;
for (int i = 18; i >= 0; i--) {
if (spx[i][h[a]] > h[d] || spx[i][h[a]] == 0) continue;
if (spx[i][h[a]] == h[d]) return (1 << i);
int t = func(inv[spx[i][h[a]]] , d);
return (t == -1) ? t : ((1<<i) + t);
}
for (int i = 18; i >= 0; i--) {
if (spn[i][h[a]] > h[d] || spn[i][h[a]] == 0) continue;
if (spn[i][h[a]] == h[d]) return (1 << i);
int t = func(inv[spn[i][h[a]]] , d);
return (t == -1) ? t : ((1<<i) + t);
}
return -1;
}
int minimum_jumps(int a , int b , int c , int d) {
int temp = (root -> query(a , b , h[d])).ff;
if (temp == -1) return -1;
int ret = inf;
for (int i = c; i <= d; i++) {
ret = min(ret , func(inv[temp] , i));
}
return ret;
}
Compilation message
jumps.cpp: In function 'int func(int, int)':
jumps.cpp:106:6: warning: unused variable 'dis' [-Wunused-variable]
106 | int dis = 0;
| ^~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
9 ms |
31064 KB |
Output is correct |
2 |
Correct |
4 ms |
31064 KB |
Output is correct |
3 |
Execution timed out |
4046 ms |
48176 KB |
Time limit exceeded |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
4 ms |
31064 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
4 ms |
31064 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
5 ms |
31064 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
31064 KB |
Output is correct |
2 |
Correct |
4 ms |
31064 KB |
Output is correct |
3 |
Correct |
4 ms |
31064 KB |
Output is correct |
4 |
Correct |
188 ms |
41192 KB |
Output is correct |
5 |
Correct |
759 ms |
53448 KB |
Output is correct |
6 |
Correct |
434 ms |
34888 KB |
Output is correct |
7 |
Correct |
719 ms |
53584 KB |
Output is correct |
8 |
Correct |
392 ms |
38864 KB |
Output is correct |
9 |
Correct |
727 ms |
53632 KB |
Output is correct |
10 |
Correct |
807 ms |
52696 KB |
Output is correct |
11 |
Correct |
959 ms |
53368 KB |
Output is correct |
12 |
Correct |
779 ms |
52932 KB |
Output is correct |
13 |
Correct |
798 ms |
53456 KB |
Output is correct |
14 |
Correct |
872 ms |
54084 KB |
Output is correct |
15 |
Correct |
691 ms |
54068 KB |
Output is correct |
16 |
Correct |
679 ms |
54068 KB |
Output is correct |
17 |
Correct |
4 ms |
31064 KB |
Output is correct |
18 |
Correct |
4 ms |
31064 KB |
Output is correct |
19 |
Correct |
4 ms |
31064 KB |
Output is correct |
20 |
Correct |
5 ms |
31064 KB |
Output is correct |
21 |
Correct |
5 ms |
31064 KB |
Output is correct |
22 |
Correct |
4 ms |
31064 KB |
Output is correct |
23 |
Correct |
5 ms |
31064 KB |
Output is correct |
24 |
Correct |
4 ms |
31064 KB |
Output is correct |
25 |
Correct |
4 ms |
31064 KB |
Output is correct |
26 |
Correct |
4 ms |
31076 KB |
Output is correct |
27 |
Correct |
13 ms |
31408 KB |
Output is correct |
28 |
Correct |
19 ms |
31320 KB |
Output is correct |
29 |
Correct |
16 ms |
31424 KB |
Output is correct |
30 |
Correct |
14 ms |
31320 KB |
Output is correct |
31 |
Correct |
12 ms |
31320 KB |
Output is correct |
32 |
Correct |
4 ms |
31224 KB |
Output is correct |
33 |
Correct |
29 ms |
43908 KB |
Output is correct |
34 |
Correct |
51 ms |
53448 KB |
Output is correct |
35 |
Correct |
40 ms |
52928 KB |
Output is correct |
36 |
Correct |
55 ms |
53464 KB |
Output is correct |
37 |
Correct |
45 ms |
54064 KB |
Output is correct |
38 |
Correct |
39 ms |
54092 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
31064 KB |
Output is correct |
2 |
Correct |
4 ms |
31064 KB |
Output is correct |
3 |
Correct |
4 ms |
31064 KB |
Output is correct |
4 |
Correct |
188 ms |
41192 KB |
Output is correct |
5 |
Correct |
759 ms |
53448 KB |
Output is correct |
6 |
Correct |
434 ms |
34888 KB |
Output is correct |
7 |
Correct |
719 ms |
53584 KB |
Output is correct |
8 |
Correct |
392 ms |
38864 KB |
Output is correct |
9 |
Correct |
727 ms |
53632 KB |
Output is correct |
10 |
Correct |
807 ms |
52696 KB |
Output is correct |
11 |
Correct |
959 ms |
53368 KB |
Output is correct |
12 |
Correct |
779 ms |
52932 KB |
Output is correct |
13 |
Correct |
798 ms |
53456 KB |
Output is correct |
14 |
Correct |
872 ms |
54084 KB |
Output is correct |
15 |
Correct |
691 ms |
54068 KB |
Output is correct |
16 |
Correct |
679 ms |
54068 KB |
Output is correct |
17 |
Correct |
4 ms |
31064 KB |
Output is correct |
18 |
Correct |
4 ms |
31064 KB |
Output is correct |
19 |
Correct |
4 ms |
31064 KB |
Output is correct |
20 |
Correct |
5 ms |
31064 KB |
Output is correct |
21 |
Correct |
5 ms |
31064 KB |
Output is correct |
22 |
Correct |
4 ms |
31064 KB |
Output is correct |
23 |
Correct |
5 ms |
31064 KB |
Output is correct |
24 |
Correct |
4 ms |
31064 KB |
Output is correct |
25 |
Correct |
4 ms |
31064 KB |
Output is correct |
26 |
Correct |
4 ms |
31076 KB |
Output is correct |
27 |
Correct |
13 ms |
31408 KB |
Output is correct |
28 |
Correct |
19 ms |
31320 KB |
Output is correct |
29 |
Correct |
16 ms |
31424 KB |
Output is correct |
30 |
Correct |
14 ms |
31320 KB |
Output is correct |
31 |
Correct |
12 ms |
31320 KB |
Output is correct |
32 |
Correct |
4 ms |
31224 KB |
Output is correct |
33 |
Correct |
29 ms |
43908 KB |
Output is correct |
34 |
Correct |
51 ms |
53448 KB |
Output is correct |
35 |
Correct |
40 ms |
52928 KB |
Output is correct |
36 |
Correct |
55 ms |
53464 KB |
Output is correct |
37 |
Correct |
45 ms |
54064 KB |
Output is correct |
38 |
Correct |
39 ms |
54092 KB |
Output is correct |
39 |
Correct |
3 ms |
31064 KB |
Output is correct |
40 |
Correct |
4 ms |
31064 KB |
Output is correct |
41 |
Correct |
4 ms |
31212 KB |
Output is correct |
42 |
Correct |
185 ms |
41516 KB |
Output is correct |
43 |
Correct |
775 ms |
53644 KB |
Output is correct |
44 |
Correct |
444 ms |
34904 KB |
Output is correct |
45 |
Correct |
832 ms |
53584 KB |
Output is correct |
46 |
Correct |
405 ms |
38868 KB |
Output is correct |
47 |
Correct |
736 ms |
53456 KB |
Output is correct |
48 |
Correct |
777 ms |
52820 KB |
Output is correct |
49 |
Correct |
930 ms |
53456 KB |
Output is correct |
50 |
Correct |
811 ms |
52936 KB |
Output is correct |
51 |
Correct |
792 ms |
53816 KB |
Output is correct |
52 |
Correct |
797 ms |
54216 KB |
Output is correct |
53 |
Correct |
631 ms |
54072 KB |
Output is correct |
54 |
Correct |
655 ms |
54328 KB |
Output is correct |
55 |
Correct |
5 ms |
31064 KB |
Output is correct |
56 |
Correct |
92 ms |
53536 KB |
Output is correct |
57 |
Correct |
784 ms |
53400 KB |
Output is correct |
58 |
Correct |
338 ms |
35160 KB |
Output is correct |
59 |
Correct |
735 ms |
53448 KB |
Output is correct |
60 |
Correct |
308 ms |
39120 KB |
Output is correct |
61 |
Correct |
703 ms |
53432 KB |
Output is correct |
62 |
Correct |
854 ms |
52672 KB |
Output is correct |
63 |
Correct |
923 ms |
53196 KB |
Output is correct |
64 |
Correct |
875 ms |
53196 KB |
Output is correct |
65 |
Correct |
768 ms |
53700 KB |
Output is correct |
66 |
Correct |
856 ms |
54064 KB |
Output is correct |
67 |
Correct |
668 ms |
54084 KB |
Output is correct |
68 |
Correct |
671 ms |
54000 KB |
Output is correct |
69 |
Correct |
5 ms |
31064 KB |
Output is correct |
70 |
Correct |
4 ms |
31064 KB |
Output is correct |
71 |
Correct |
5 ms |
31064 KB |
Output is correct |
72 |
Correct |
4 ms |
31064 KB |
Output is correct |
73 |
Correct |
4 ms |
31064 KB |
Output is correct |
74 |
Correct |
4 ms |
31064 KB |
Output is correct |
75 |
Correct |
4 ms |
31064 KB |
Output is correct |
76 |
Correct |
3 ms |
31064 KB |
Output is correct |
77 |
Correct |
4 ms |
31064 KB |
Output is correct |
78 |
Correct |
4 ms |
31064 KB |
Output is correct |
79 |
Correct |
5 ms |
31064 KB |
Output is correct |
80 |
Correct |
4 ms |
31236 KB |
Output is correct |
81 |
Correct |
5 ms |
31064 KB |
Output is correct |
82 |
Correct |
5 ms |
31064 KB |
Output is correct |
83 |
Correct |
4 ms |
31064 KB |
Output is correct |
84 |
Correct |
4 ms |
31064 KB |
Output is correct |
85 |
Correct |
5 ms |
31064 KB |
Output is correct |
86 |
Correct |
12 ms |
31320 KB |
Output is correct |
87 |
Correct |
15 ms |
31320 KB |
Output is correct |
88 |
Correct |
12 ms |
31320 KB |
Output is correct |
89 |
Correct |
17 ms |
31320 KB |
Output is correct |
90 |
Correct |
13 ms |
31320 KB |
Output is correct |
91 |
Correct |
4 ms |
31064 KB |
Output is correct |
92 |
Correct |
4 ms |
31064 KB |
Output is correct |
93 |
Correct |
15 ms |
31428 KB |
Output is correct |
94 |
Correct |
15 ms |
31320 KB |
Output is correct |
95 |
Correct |
13 ms |
31320 KB |
Output is correct |
96 |
Correct |
12 ms |
31320 KB |
Output is correct |
97 |
Correct |
12 ms |
31320 KB |
Output is correct |
98 |
Correct |
4 ms |
31060 KB |
Output is correct |
99 |
Correct |
50 ms |
53448 KB |
Output is correct |
100 |
Correct |
48 ms |
53460 KB |
Output is correct |
101 |
Correct |
41 ms |
53192 KB |
Output is correct |
102 |
Correct |
47 ms |
53436 KB |
Output is correct |
103 |
Correct |
39 ms |
54012 KB |
Output is correct |
104 |
Correct |
49 ms |
54064 KB |
Output is correct |
105 |
Correct |
4 ms |
31060 KB |
Output is correct |
106 |
Correct |
34 ms |
43908 KB |
Output is correct |
107 |
Correct |
49 ms |
53460 KB |
Output is correct |
108 |
Correct |
43 ms |
53164 KB |
Output is correct |
109 |
Correct |
46 ms |
53452 KB |
Output is correct |
110 |
Correct |
38 ms |
54192 KB |
Output is correct |
111 |
Correct |
43 ms |
54084 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
9 ms |
31064 KB |
Output is correct |
2 |
Correct |
4 ms |
31064 KB |
Output is correct |
3 |
Execution timed out |
4046 ms |
48176 KB |
Time limit exceeded |
4 |
Halted |
0 ms |
0 KB |
- |