#include "jumps.h"
#include <bits/stdc++.h>
using namespace std;
const int L = 18;
const int inf = 1000000000;
int n;
vector<int> a;
vector<vector<int>> lo, hi, g;
bool subtask1 = true;
void init(int N, vector<int> H){
n = N, a = H;
g.resize(n);
lo.assign(n, vector(L, -1));
hi.assign(n, vector(L, -1));
for(int i = 1; i < n; i++){
if(a[i - 1] > a[i]){
subtask1 = false;
}
}
vector<int> idx(n);
for(int i = 0; i < n; i++){
idx[--a[i]] = i;
}
set<int> s;
for(int i = n - 1; i >= 0; i--){
auto j = s.lower_bound(idx[i]);
int l = -1, r = -1;
if(j != s.end()){
r = a[*j];
g[idx[i]].push_back(*j);
}
if(j != s.begin()){
l = a[*prev(j)];
g[idx[i]].push_back(*prev(j));
}
if(l != -1 && (r == -1 || l >= r)){
lo[i][0] = r;
hi[i][0] = l;
} else{
lo[i][0] = l;
hi[i][0] = r;
}
s.insert(idx[i]);
}
for(int j = 1; j < L; j++){
for(int i = 0; i < n; i++){
if(lo[i][j - 1] != -1){
lo[i][j] = lo[lo[i][j - 1]][j - 1];
}
if(hi[i][j - 1] != -1){
hi[i][j] = hi[hi[i][j - 1]][j - 1];
}
}
}
}
int minimum_jumps(int A, int B, int C, int D){
if(subtask1){
return C - B;
}
if(C == D){
int H = -1;
for(int i = A; i <= B; i++){
if(a[i] < a[C]){
H = max(H, a[i]);
}
}
if(H == -1){
return -1;
}
int G = a[C], c = 0;
for(int i = L - 1; i >= 0; i--){
if(hi[H][i] != -1 && hi[H][i] <= G){
H = hi[H][i];
c += 1 << i;
}
}
for(int i = L - 1; i >= 0; i--){
if(lo[H][i] != -1 && lo[H][i] <= G){
H = lo[H][i];
c += 1 << i;
}
}
if(H != G){
c = -1;
}
return c;
}
queue<int> q;
vector<int> d(n, inf);
for(int i = A; i <= B; i++){
d[i] = 0;
q.push(i);
}
while(!q.empty()){
int i = q.front();
q.pop();
if(C <= i && i <= D){
return d[i];
}
for(int j : g[i]){
if(d[i] + 1 < d[j]){
d[j] = d[i] + 1;
q.push(j);
}
}
}
return -1;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
208 KB |
Output is correct |
2 |
Correct |
0 ms |
208 KB |
Output is correct |
3 |
Correct |
211 ms |
51372 KB |
Output is correct |
4 |
Correct |
969 ms |
64524 KB |
Output is correct |
5 |
Correct |
735 ms |
32500 KB |
Output is correct |
6 |
Correct |
895 ms |
64388 KB |
Output is correct |
7 |
Correct |
663 ms |
44104 KB |
Output is correct |
8 |
Correct |
946 ms |
64456 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
208 KB |
Output is correct |
2 |
Correct |
1 ms |
208 KB |
Output is correct |
3 |
Correct |
0 ms |
208 KB |
Output is correct |
4 |
Correct |
0 ms |
208 KB |
Output is correct |
5 |
Incorrect |
2 ms |
208 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
208 KB |
Output is correct |
2 |
Correct |
1 ms |
208 KB |
Output is correct |
3 |
Correct |
0 ms |
208 KB |
Output is correct |
4 |
Correct |
0 ms |
208 KB |
Output is correct |
5 |
Incorrect |
2 ms |
208 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
208 KB |
Output is correct |
2 |
Correct |
0 ms |
208 KB |
Output is correct |
3 |
Correct |
0 ms |
208 KB |
Output is correct |
4 |
Correct |
0 ms |
208 KB |
Output is correct |
5 |
Correct |
251 ms |
51936 KB |
Output is correct |
6 |
Correct |
334 ms |
64412 KB |
Output is correct |
7 |
Correct |
119 ms |
33088 KB |
Output is correct |
8 |
Correct |
322 ms |
64540 KB |
Output is correct |
9 |
Correct |
28 ms |
9928 KB |
Output is correct |
10 |
Correct |
325 ms |
64424 KB |
Output is correct |
11 |
Correct |
168 ms |
64400 KB |
Output is correct |
12 |
Correct |
177 ms |
64408 KB |
Output is correct |
13 |
Correct |
171 ms |
64436 KB |
Output is correct |
14 |
Correct |
270 ms |
64484 KB |
Output is correct |
15 |
Correct |
216 ms |
64416 KB |
Output is correct |
16 |
Correct |
190 ms |
64472 KB |
Output is correct |
17 |
Correct |
198 ms |
64484 KB |
Output is correct |
18 |
Correct |
0 ms |
208 KB |
Output is correct |
19 |
Correct |
1 ms |
336 KB |
Output is correct |
20 |
Correct |
1 ms |
336 KB |
Output is correct |
21 |
Correct |
1 ms |
336 KB |
Output is correct |
22 |
Correct |
1 ms |
336 KB |
Output is correct |
23 |
Correct |
1 ms |
336 KB |
Output is correct |
24 |
Correct |
1 ms |
336 KB |
Output is correct |
25 |
Correct |
0 ms |
336 KB |
Output is correct |
26 |
Correct |
1 ms |
592 KB |
Output is correct |
27 |
Correct |
2 ms |
848 KB |
Output is correct |
28 |
Correct |
2 ms |
940 KB |
Output is correct |
29 |
Correct |
2 ms |
848 KB |
Output is correct |
30 |
Correct |
3 ms |
848 KB |
Output is correct |
31 |
Correct |
2 ms |
848 KB |
Output is correct |
32 |
Correct |
0 ms |
208 KB |
Output is correct |
33 |
Correct |
283 ms |
64324 KB |
Output is correct |
34 |
Correct |
294 ms |
64632 KB |
Output is correct |
35 |
Correct |
181 ms |
64480 KB |
Output is correct |
36 |
Correct |
261 ms |
64484 KB |
Output is correct |
37 |
Correct |
192 ms |
64460 KB |
Output is correct |
38 |
Correct |
168 ms |
64428 KB |
Output is correct |
39 |
Correct |
0 ms |
208 KB |
Output is correct |
40 |
Correct |
141 ms |
37448 KB |
Output is correct |
41 |
Correct |
285 ms |
64428 KB |
Output is correct |
42 |
Correct |
163 ms |
64408 KB |
Output is correct |
43 |
Correct |
235 ms |
64380 KB |
Output is correct |
44 |
Correct |
189 ms |
64488 KB |
Output is correct |
45 |
Correct |
185 ms |
64488 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
208 KB |
Output is correct |
2 |
Correct |
0 ms |
208 KB |
Output is correct |
3 |
Correct |
1 ms |
208 KB |
Output is correct |
4 |
Correct |
282 ms |
29704 KB |
Output is correct |
5 |
Correct |
1043 ms |
64528 KB |
Output is correct |
6 |
Correct |
608 ms |
10832 KB |
Output is correct |
7 |
Correct |
1122 ms |
64556 KB |
Output is correct |
8 |
Correct |
556 ms |
22364 KB |
Output is correct |
9 |
Correct |
1141 ms |
64368 KB |
Output is correct |
10 |
Correct |
886 ms |
64488 KB |
Output is correct |
11 |
Correct |
1081 ms |
64432 KB |
Output is correct |
12 |
Correct |
1090 ms |
64428 KB |
Output is correct |
13 |
Correct |
996 ms |
64480 KB |
Output is correct |
14 |
Correct |
1066 ms |
64548 KB |
Output is correct |
15 |
Correct |
900 ms |
64484 KB |
Output is correct |
16 |
Correct |
886 ms |
64492 KB |
Output is correct |
17 |
Correct |
1 ms |
208 KB |
Output is correct |
18 |
Correct |
0 ms |
208 KB |
Output is correct |
19 |
Correct |
2 ms |
208 KB |
Output is correct |
20 |
Correct |
3 ms |
336 KB |
Output is correct |
21 |
Correct |
2 ms |
336 KB |
Output is correct |
22 |
Correct |
1 ms |
336 KB |
Output is correct |
23 |
Correct |
2 ms |
336 KB |
Output is correct |
24 |
Correct |
2 ms |
336 KB |
Output is correct |
25 |
Correct |
1 ms |
336 KB |
Output is correct |
26 |
Correct |
1 ms |
464 KB |
Output is correct |
27 |
Correct |
19 ms |
848 KB |
Output is correct |
28 |
Correct |
21 ms |
848 KB |
Output is correct |
29 |
Correct |
17 ms |
848 KB |
Output is correct |
30 |
Correct |
24 ms |
848 KB |
Output is correct |
31 |
Correct |
23 ms |
848 KB |
Output is correct |
32 |
Correct |
0 ms |
208 KB |
Output is correct |
33 |
Correct |
143 ms |
37448 KB |
Output is correct |
34 |
Correct |
290 ms |
64612 KB |
Output is correct |
35 |
Correct |
164 ms |
64412 KB |
Output is correct |
36 |
Correct |
258 ms |
64376 KB |
Output is correct |
37 |
Correct |
187 ms |
64464 KB |
Output is correct |
38 |
Correct |
172 ms |
64432 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
208 KB |
Output is correct |
2 |
Correct |
0 ms |
208 KB |
Output is correct |
3 |
Correct |
1 ms |
208 KB |
Output is correct |
4 |
Correct |
282 ms |
29704 KB |
Output is correct |
5 |
Correct |
1043 ms |
64528 KB |
Output is correct |
6 |
Correct |
608 ms |
10832 KB |
Output is correct |
7 |
Correct |
1122 ms |
64556 KB |
Output is correct |
8 |
Correct |
556 ms |
22364 KB |
Output is correct |
9 |
Correct |
1141 ms |
64368 KB |
Output is correct |
10 |
Correct |
886 ms |
64488 KB |
Output is correct |
11 |
Correct |
1081 ms |
64432 KB |
Output is correct |
12 |
Correct |
1090 ms |
64428 KB |
Output is correct |
13 |
Correct |
996 ms |
64480 KB |
Output is correct |
14 |
Correct |
1066 ms |
64548 KB |
Output is correct |
15 |
Correct |
900 ms |
64484 KB |
Output is correct |
16 |
Correct |
886 ms |
64492 KB |
Output is correct |
17 |
Correct |
1 ms |
208 KB |
Output is correct |
18 |
Correct |
0 ms |
208 KB |
Output is correct |
19 |
Correct |
2 ms |
208 KB |
Output is correct |
20 |
Correct |
3 ms |
336 KB |
Output is correct |
21 |
Correct |
2 ms |
336 KB |
Output is correct |
22 |
Correct |
1 ms |
336 KB |
Output is correct |
23 |
Correct |
2 ms |
336 KB |
Output is correct |
24 |
Correct |
2 ms |
336 KB |
Output is correct |
25 |
Correct |
1 ms |
336 KB |
Output is correct |
26 |
Correct |
1 ms |
464 KB |
Output is correct |
27 |
Correct |
19 ms |
848 KB |
Output is correct |
28 |
Correct |
21 ms |
848 KB |
Output is correct |
29 |
Correct |
17 ms |
848 KB |
Output is correct |
30 |
Correct |
24 ms |
848 KB |
Output is correct |
31 |
Correct |
23 ms |
848 KB |
Output is correct |
32 |
Correct |
0 ms |
208 KB |
Output is correct |
33 |
Correct |
143 ms |
37448 KB |
Output is correct |
34 |
Correct |
290 ms |
64612 KB |
Output is correct |
35 |
Correct |
164 ms |
64412 KB |
Output is correct |
36 |
Correct |
258 ms |
64376 KB |
Output is correct |
37 |
Correct |
187 ms |
64464 KB |
Output is correct |
38 |
Correct |
172 ms |
64432 KB |
Output is correct |
39 |
Correct |
0 ms |
208 KB |
Output is correct |
40 |
Correct |
0 ms |
208 KB |
Output is correct |
41 |
Correct |
0 ms |
208 KB |
Output is correct |
42 |
Correct |
271 ms |
29640 KB |
Output is correct |
43 |
Correct |
821 ms |
64444 KB |
Output is correct |
44 |
Correct |
610 ms |
10856 KB |
Output is correct |
45 |
Correct |
909 ms |
64464 KB |
Output is correct |
46 |
Correct |
545 ms |
22356 KB |
Output is correct |
47 |
Correct |
1085 ms |
64488 KB |
Output is correct |
48 |
Correct |
791 ms |
64452 KB |
Output is correct |
49 |
Correct |
1098 ms |
64408 KB |
Output is correct |
50 |
Correct |
1071 ms |
64456 KB |
Output is correct |
51 |
Correct |
1052 ms |
64444 KB |
Output is correct |
52 |
Correct |
901 ms |
64420 KB |
Output is correct |
53 |
Correct |
904 ms |
64484 KB |
Output is correct |
54 |
Correct |
849 ms |
64536 KB |
Output is correct |
55 |
Correct |
0 ms |
208 KB |
Output is correct |
56 |
Incorrect |
1352 ms |
64168 KB |
Output isn't correct |
57 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
208 KB |
Output is correct |
2 |
Correct |
0 ms |
208 KB |
Output is correct |
3 |
Correct |
211 ms |
51372 KB |
Output is correct |
4 |
Correct |
969 ms |
64524 KB |
Output is correct |
5 |
Correct |
735 ms |
32500 KB |
Output is correct |
6 |
Correct |
895 ms |
64388 KB |
Output is correct |
7 |
Correct |
663 ms |
44104 KB |
Output is correct |
8 |
Correct |
946 ms |
64456 KB |
Output is correct |
9 |
Correct |
0 ms |
208 KB |
Output is correct |
10 |
Correct |
1 ms |
208 KB |
Output is correct |
11 |
Correct |
0 ms |
208 KB |
Output is correct |
12 |
Correct |
0 ms |
208 KB |
Output is correct |
13 |
Incorrect |
2 ms |
208 KB |
Output isn't correct |
14 |
Halted |
0 ms |
0 KB |
- |