#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
#define f first
#define s second
#define ll long long
#define ld long double
#define all(_v) _v.begin(), _v.end()
#define sz(_v) (int)_v.size()
#define pii pair <int, int>
#define pll pair <ll, ll>
#define veci vector <int>
#define vecll vector <ll>
const int dx[4] = {1, -1, 0, 0};
const int dy[4] = {0, 0, -1, 1};
const double PI = 3.1415926535897932384626433832795;
const double eps = 1e-9;
const int MOD1 = 1e9 + 7;
const int MOD2 = 998244353;
const int MAXN = 2e5 + 10;
int a[MAXN];
int L[MAXN], R[MAXN];
int n;
bool issorted;
int up_L[MAXN][22], up_R[MAXN][22], up_h[MAXN][22];
int dist[MAXN];
void init(int _n, veci _a) {
n = _n;
for(int i = 0; i < _n; ++i) a[i + 1] = _a[i];
issorted = 1;
for(int i = 1; i <= n; ++i)
issorted &= (a[i] == 1 + a[i - 1]);
a[0] = a[n + 1] = n + 1;
stack <int> st;
for(int i = 1; i <= n; ++i) {
while(!st.empty() && a[st.top()] < a[i]) st.pop();
if(!st.empty()) L[i] = st.top();
else L[i] = 0;
st.push(i);
}
while(!st.empty()) st.pop();
for(int i = n; i > 0; --i) {
while(!st.empty() && a[st.top()] < a[i]) st.pop();
if(!st.empty()) R[i] = st.top();
else R[i] = n + 1;
st.push(i);
}
for(int i = 1; i <= n; ++i) {
up_L[i][0] = L[i];
up_R[i][0] = R[i];
up_h[i][0] = (a[L[i]] > a[R[i]] ? L[i] : R[i]);
}
for(int j = 1; j < 20; ++j) {
for(int i = 1; i <= n; ++i) {
up_L[i][j] = up_L[up_L[i][j - 1]][j - 1];
up_R[i][j] = up_R[up_R[i][j - 1]][j - 1];
up_h[i][j] = up_h[up_h[i][j - 1]][j - 1];
}
}
}
int minimum_jumps_eq(int l, int x) {
int ans = 0;
for(int i = 19; i >= 0; --i)
if(a[up_h[l][i]] <= a[x]) l = up_h[l][i], ans += (1 << i);
if(a[L[l]] > a[x]) {
for(int i = 19; i >= 0; --i)
if(a[up_R[l][i]] <= a[x]) l = up_R[l][i], ans += (1 << i);
} else {
for(int i = 19; i <= 0; --i)
if(a[up_L[l][i]] <= a[x]) l = up_L[l][i], ans += (1 << i);
}
return (l == x ? ans : -1);
}
int minimum_jumps(int l, int r, int x, int y) {
++l, ++r, ++x, ++y;
if(issorted) return x - r;
if(x == y) {
for(int i = 19; i >= 0; --i)
if(up_R[l][i] <= r && a[up_R[r][i]] < a[x]) l = up_R[l][i];
return minimum_jumps_eq(l, x);
}
queue <int> q;
for(int i = 1; i <= n; ++i) dist[i] = 1e9;
for(int i = l; i <= r; ++i) {
q.push(i);
dist[i] = 0;
}
while(!q.empty()) {
int v = q.front();
q.pop();
if(dist[L[v]] > dist[v] + 1) {
dist[L[v]] = dist[v] + 1;
q.push(L[v]);
}
if(dist[R[v]] > dist[v] + 1) {
dist[R[v]] = dist[v] + 1;
q.push(R[v]);
}
}
int ans = 1e9;
for(int i = x; i <= y; ++i) ans = min(ans, dist[i]);
return (ans == 1e9 ? -1 : ans);
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
328 KB |
Output is correct |
2 |
Correct |
0 ms |
328 KB |
Output is correct |
3 |
Correct |
149 ms |
45332 KB |
Output is correct |
4 |
Correct |
1263 ms |
56640 KB |
Output is correct |
5 |
Correct |
967 ms |
28604 KB |
Output is correct |
6 |
Correct |
715 ms |
56604 KB |
Output is correct |
7 |
Correct |
904 ms |
38844 KB |
Output is correct |
8 |
Correct |
1218 ms |
56604 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
328 KB |
Output is correct |
2 |
Correct |
0 ms |
328 KB |
Output is correct |
3 |
Correct |
1 ms |
328 KB |
Output is correct |
4 |
Correct |
1 ms |
328 KB |
Output is correct |
5 |
Incorrect |
1 ms |
328 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
328 KB |
Output is correct |
2 |
Correct |
0 ms |
328 KB |
Output is correct |
3 |
Correct |
1 ms |
328 KB |
Output is correct |
4 |
Correct |
1 ms |
328 KB |
Output is correct |
5 |
Incorrect |
1 ms |
328 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
328 KB |
Output is correct |
2 |
Correct |
0 ms |
328 KB |
Output is correct |
3 |
Correct |
0 ms |
328 KB |
Output is correct |
4 |
Correct |
0 ms |
328 KB |
Output is correct |
5 |
Correct |
106 ms |
45352 KB |
Output is correct |
6 |
Correct |
136 ms |
56116 KB |
Output is correct |
7 |
Correct |
65 ms |
28832 KB |
Output is correct |
8 |
Correct |
123 ms |
56588 KB |
Output is correct |
9 |
Correct |
15 ms |
8708 KB |
Output is correct |
10 |
Correct |
125 ms |
56056 KB |
Output is correct |
11 |
Correct |
119 ms |
56604 KB |
Output is correct |
12 |
Correct |
137 ms |
56512 KB |
Output is correct |
13 |
Correct |
136 ms |
56480 KB |
Output is correct |
14 |
Correct |
126 ms |
55980 KB |
Output is correct |
15 |
Correct |
159 ms |
56188 KB |
Output is correct |
16 |
Correct |
127 ms |
56584 KB |
Output is correct |
17 |
Correct |
130 ms |
56524 KB |
Output is correct |
18 |
Correct |
1 ms |
328 KB |
Output is correct |
19 |
Correct |
0 ms |
328 KB |
Output is correct |
20 |
Correct |
1 ms |
328 KB |
Output is correct |
21 |
Incorrect |
1 ms |
328 KB |
Output isn't correct |
22 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
328 KB |
Output is correct |
2 |
Correct |
0 ms |
328 KB |
Output is correct |
3 |
Correct |
0 ms |
328 KB |
Output is correct |
4 |
Correct |
338 ms |
25732 KB |
Output is correct |
5 |
Correct |
1040 ms |
55872 KB |
Output is correct |
6 |
Correct |
755 ms |
9416 KB |
Output is correct |
7 |
Correct |
1196 ms |
55840 KB |
Output is correct |
8 |
Correct |
511 ms |
19400 KB |
Output is correct |
9 |
Correct |
1093 ms |
55872 KB |
Output is correct |
10 |
Correct |
1051 ms |
56700 KB |
Output is correct |
11 |
Correct |
1338 ms |
56636 KB |
Output is correct |
12 |
Correct |
1243 ms |
56640 KB |
Output is correct |
13 |
Correct |
1107 ms |
55868 KB |
Output is correct |
14 |
Correct |
994 ms |
56204 KB |
Output is correct |
15 |
Correct |
949 ms |
56696 KB |
Output is correct |
16 |
Correct |
1228 ms |
56604 KB |
Output is correct |
17 |
Correct |
0 ms |
328 KB |
Output is correct |
18 |
Correct |
0 ms |
328 KB |
Output is correct |
19 |
Correct |
2 ms |
328 KB |
Output is correct |
20 |
Correct |
3 ms |
328 KB |
Output is correct |
21 |
Correct |
3 ms |
328 KB |
Output is correct |
22 |
Correct |
3 ms |
328 KB |
Output is correct |
23 |
Correct |
3 ms |
328 KB |
Output is correct |
24 |
Correct |
3 ms |
328 KB |
Output is correct |
25 |
Correct |
0 ms |
328 KB |
Output is correct |
26 |
Correct |
1 ms |
548 KB |
Output is correct |
27 |
Correct |
26 ms |
840 KB |
Output is correct |
28 |
Correct |
26 ms |
840 KB |
Output is correct |
29 |
Correct |
23 ms |
840 KB |
Output is correct |
30 |
Correct |
17 ms |
840 KB |
Output is correct |
31 |
Correct |
21 ms |
904 KB |
Output is correct |
32 |
Correct |
0 ms |
328 KB |
Output is correct |
33 |
Correct |
70 ms |
32416 KB |
Output is correct |
34 |
Correct |
140 ms |
55972 KB |
Output is correct |
35 |
Correct |
119 ms |
56476 KB |
Output is correct |
36 |
Correct |
121 ms |
55844 KB |
Output is correct |
37 |
Correct |
163 ms |
56316 KB |
Output is correct |
38 |
Correct |
121 ms |
56696 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
328 KB |
Output is correct |
2 |
Correct |
0 ms |
328 KB |
Output is correct |
3 |
Correct |
0 ms |
328 KB |
Output is correct |
4 |
Correct |
338 ms |
25732 KB |
Output is correct |
5 |
Correct |
1040 ms |
55872 KB |
Output is correct |
6 |
Correct |
755 ms |
9416 KB |
Output is correct |
7 |
Correct |
1196 ms |
55840 KB |
Output is correct |
8 |
Correct |
511 ms |
19400 KB |
Output is correct |
9 |
Correct |
1093 ms |
55872 KB |
Output is correct |
10 |
Correct |
1051 ms |
56700 KB |
Output is correct |
11 |
Correct |
1338 ms |
56636 KB |
Output is correct |
12 |
Correct |
1243 ms |
56640 KB |
Output is correct |
13 |
Correct |
1107 ms |
55868 KB |
Output is correct |
14 |
Correct |
994 ms |
56204 KB |
Output is correct |
15 |
Correct |
949 ms |
56696 KB |
Output is correct |
16 |
Correct |
1228 ms |
56604 KB |
Output is correct |
17 |
Correct |
0 ms |
328 KB |
Output is correct |
18 |
Correct |
0 ms |
328 KB |
Output is correct |
19 |
Correct |
2 ms |
328 KB |
Output is correct |
20 |
Correct |
3 ms |
328 KB |
Output is correct |
21 |
Correct |
3 ms |
328 KB |
Output is correct |
22 |
Correct |
3 ms |
328 KB |
Output is correct |
23 |
Correct |
3 ms |
328 KB |
Output is correct |
24 |
Correct |
3 ms |
328 KB |
Output is correct |
25 |
Correct |
0 ms |
328 KB |
Output is correct |
26 |
Correct |
1 ms |
548 KB |
Output is correct |
27 |
Correct |
26 ms |
840 KB |
Output is correct |
28 |
Correct |
26 ms |
840 KB |
Output is correct |
29 |
Correct |
23 ms |
840 KB |
Output is correct |
30 |
Correct |
17 ms |
840 KB |
Output is correct |
31 |
Correct |
21 ms |
904 KB |
Output is correct |
32 |
Correct |
0 ms |
328 KB |
Output is correct |
33 |
Correct |
70 ms |
32416 KB |
Output is correct |
34 |
Correct |
140 ms |
55972 KB |
Output is correct |
35 |
Correct |
119 ms |
56476 KB |
Output is correct |
36 |
Correct |
121 ms |
55844 KB |
Output is correct |
37 |
Correct |
163 ms |
56316 KB |
Output is correct |
38 |
Correct |
121 ms |
56696 KB |
Output is correct |
39 |
Correct |
0 ms |
328 KB |
Output is correct |
40 |
Correct |
0 ms |
328 KB |
Output is correct |
41 |
Correct |
0 ms |
328 KB |
Output is correct |
42 |
Correct |
270 ms |
25620 KB |
Output is correct |
43 |
Correct |
1127 ms |
55868 KB |
Output is correct |
44 |
Correct |
762 ms |
9416 KB |
Output is correct |
45 |
Correct |
1088 ms |
55988 KB |
Output is correct |
46 |
Correct |
680 ms |
19396 KB |
Output is correct |
47 |
Correct |
997 ms |
55832 KB |
Output is correct |
48 |
Correct |
1121 ms |
56692 KB |
Output is correct |
49 |
Correct |
1294 ms |
56628 KB |
Output is correct |
50 |
Correct |
1167 ms |
56512 KB |
Output is correct |
51 |
Correct |
1401 ms |
55868 KB |
Output is correct |
52 |
Correct |
1460 ms |
56240 KB |
Output is correct |
53 |
Correct |
1068 ms |
56804 KB |
Output is correct |
54 |
Correct |
1116 ms |
56596 KB |
Output is correct |
55 |
Correct |
0 ms |
328 KB |
Output is correct |
56 |
Incorrect |
221 ms |
55672 KB |
Output isn't correct |
57 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
328 KB |
Output is correct |
2 |
Correct |
0 ms |
328 KB |
Output is correct |
3 |
Correct |
149 ms |
45332 KB |
Output is correct |
4 |
Correct |
1263 ms |
56640 KB |
Output is correct |
5 |
Correct |
967 ms |
28604 KB |
Output is correct |
6 |
Correct |
715 ms |
56604 KB |
Output is correct |
7 |
Correct |
904 ms |
38844 KB |
Output is correct |
8 |
Correct |
1218 ms |
56604 KB |
Output is correct |
9 |
Correct |
0 ms |
328 KB |
Output is correct |
10 |
Correct |
0 ms |
328 KB |
Output is correct |
11 |
Correct |
1 ms |
328 KB |
Output is correct |
12 |
Correct |
1 ms |
328 KB |
Output is correct |
13 |
Incorrect |
1 ms |
328 KB |
Output isn't correct |
14 |
Halted |
0 ms |
0 KB |
- |