#include<bits/stdc++.h>
#include"jumps.h"
using namespace std;
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#define N 200005
int t[4*N],arr[N],up[20][N],dow[20][N],n;
void cre(int x,int l,int r){
if(l==r){t[x]=arr[l];return ;}
int mid=(l+r)/2;
cre(x*2,l,mid);
cre(x*2+1,mid+1,r);
t[x]=max(t[x*2],t[x*2+1]);
}
int sol(int x,int l,int r,int ll,int rr){
if(l>rr||ll>r||ll>rr)return 0;
if(ll<=l&&r<=rr)return t[x];
int mid=(l+r)/2;
return max(sol(x*2,l,mid,ll,rr),sol(x*2+1,mid+1,r,ll,rr));
}
void init(int nn,vector<int> h){
int i,j,l,r,mid,val;
n=nn;
for(i=0;i<n;i++)arr[i+1]=h[i];
cre(1,1,n);
arr[n+1]=n+1;
for(i=0;i<20;i++)for(j=0;j<=n+1;j++)up[i][j]=dow[i][j]=n+1;
for(i=1;i<=n;i++){
l=1,r=i-1;
while(l<=r){
mid=(l+r)/2;
if(sol(1,1,n,mid,i-1)>arr[i])dow[0][arr[i]]=arr[mid],l=mid+1;
else r=mid-1;
}
l=i+1,r=n;
while(l<=r){
mid=(l+r)/2;
if(sol(1,1,n,i+1,mid)>arr[i])up[0][arr[i]]=arr[mid],r=mid-1;
else l=mid+1;
}
if(up[0][arr[i]]<dow[0][arr[i]])swap(up[0][arr[i]],dow[0][arr[i]]);
}
for(i=1;i<20;i++)for(j=1;j<=n;j++){
up[i][j]=up[i-1][up[i-1][j]];
dow[i][j]=dow[i-1][dow[i-1][j]];
}
return ;
}
int minimum_jumps(int a,int b,int c,int d){
a++,b++,c++,d++;
int i,l,r,mid,ml,mm,mr,now,val,ans=0;
mm=sol(1,1,n,c+1,d-1);
mr=sol(1,1,n,c,d);
if(mm>mr)return -1;
l=c,r=d;
while(l<=r){
mid=(l+r)/2;
if(sol(1,1,n,c,mid)>mm)ml=arr[mid],r=mid-1;
else l=mid+1;
}
l=a,r=b;
now=n+1;
while(l<=r){
mid=(l+r)/2;
val=sol(1,1,n,mid,b);
if(val<mr)now=val,r=mid-1;
else l=mid+1;
}
if(now>mr)return -1;
for(i=19;i>=0;i--)if(up[i][now]<ml)ans+=1<<i,now=up[i][now];
if(up[0][now]>=ml&&up[0][now]<=mr)return ans+1;
for(i=19;i>=0;i--)if(dow[i][now]<ml)ans+=1<<i,now=dow[i][now];
if(dow[0][now]>=ml&&dow[0][now]<=mr)return ans+1;
return -1;
}
Compilation message
jumps.cpp: In function 'void init(int, std::vector<int>)':
jumps.cpp:26:21: warning: unused variable 'val' [-Wunused-variable]
26 | int i,j,l,r,mid,val;
| ^~~
jumps.cpp: In function 'int minimum_jumps(int, int, int, int)':
jumps.cpp:78:5: warning: 'ml' may be used uninitialized in this function [-Wmaybe-uninitialized]
78 | if(dow[0][now]>=ml&&dow[0][now]<=mr)return ans+1;
| ^~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
464 KB |
Output is correct |
2 |
Correct |
0 ms |
464 KB |
Output is correct |
3 |
Incorrect |
996 ms |
29312 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
500 KB |
Output is correct |
2 |
Correct |
0 ms |
464 KB |
Output is correct |
3 |
Correct |
0 ms |
464 KB |
Output is correct |
4 |
Correct |
1 ms |
464 KB |
Output is correct |
5 |
Incorrect |
2 ms |
464 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
500 KB |
Output is correct |
2 |
Correct |
0 ms |
464 KB |
Output is correct |
3 |
Correct |
0 ms |
464 KB |
Output is correct |
4 |
Correct |
1 ms |
464 KB |
Output is correct |
5 |
Incorrect |
2 ms |
464 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
464 KB |
Output is correct |
2 |
Correct |
0 ms |
464 KB |
Output is correct |
3 |
Correct |
1 ms |
464 KB |
Output is correct |
4 |
Correct |
1 ms |
464 KB |
Output is correct |
5 |
Incorrect |
846 ms |
29600 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
464 KB |
Output is correct |
2 |
Correct |
0 ms |
464 KB |
Output is correct |
3 |
Correct |
0 ms |
464 KB |
Output is correct |
4 |
Correct |
640 ms |
16908 KB |
Output is correct |
5 |
Correct |
1626 ms |
36012 KB |
Output is correct |
6 |
Correct |
801 ms |
6600 KB |
Output is correct |
7 |
Correct |
1797 ms |
36012 KB |
Output is correct |
8 |
Correct |
896 ms |
13124 KB |
Output is correct |
9 |
Correct |
2055 ms |
36016 KB |
Output is correct |
10 |
Correct |
2078 ms |
36016 KB |
Output is correct |
11 |
Correct |
2105 ms |
36012 KB |
Output is correct |
12 |
Correct |
1970 ms |
36012 KB |
Output is correct |
13 |
Correct |
1980 ms |
36008 KB |
Output is correct |
14 |
Correct |
2189 ms |
36012 KB |
Output is correct |
15 |
Correct |
1863 ms |
36008 KB |
Output is correct |
16 |
Correct |
1928 ms |
36016 KB |
Output is correct |
17 |
Correct |
1 ms |
464 KB |
Output is correct |
18 |
Correct |
0 ms |
464 KB |
Output is correct |
19 |
Correct |
2 ms |
464 KB |
Output is correct |
20 |
Correct |
3 ms |
464 KB |
Output is correct |
21 |
Correct |
2 ms |
464 KB |
Output is correct |
22 |
Correct |
2 ms |
464 KB |
Output is correct |
23 |
Correct |
3 ms |
464 KB |
Output is correct |
24 |
Correct |
3 ms |
464 KB |
Output is correct |
25 |
Correct |
1 ms |
464 KB |
Output is correct |
26 |
Correct |
3 ms |
592 KB |
Output is correct |
27 |
Correct |
28 ms |
880 KB |
Output is correct |
28 |
Correct |
29 ms |
848 KB |
Output is correct |
29 |
Correct |
26 ms |
848 KB |
Output is correct |
30 |
Correct |
21 ms |
848 KB |
Output is correct |
31 |
Correct |
21 ms |
848 KB |
Output is correct |
32 |
Correct |
0 ms |
464 KB |
Output is correct |
33 |
Correct |
577 ms |
20996 KB |
Output is correct |
34 |
Correct |
1075 ms |
36012 KB |
Output is correct |
35 |
Correct |
1075 ms |
36008 KB |
Output is correct |
36 |
Correct |
1072 ms |
36016 KB |
Output is correct |
37 |
Correct |
1165 ms |
36016 KB |
Output is correct |
38 |
Correct |
1151 ms |
36012 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
464 KB |
Output is correct |
2 |
Correct |
0 ms |
464 KB |
Output is correct |
3 |
Correct |
0 ms |
464 KB |
Output is correct |
4 |
Correct |
640 ms |
16908 KB |
Output is correct |
5 |
Correct |
1626 ms |
36012 KB |
Output is correct |
6 |
Correct |
801 ms |
6600 KB |
Output is correct |
7 |
Correct |
1797 ms |
36012 KB |
Output is correct |
8 |
Correct |
896 ms |
13124 KB |
Output is correct |
9 |
Correct |
2055 ms |
36016 KB |
Output is correct |
10 |
Correct |
2078 ms |
36016 KB |
Output is correct |
11 |
Correct |
2105 ms |
36012 KB |
Output is correct |
12 |
Correct |
1970 ms |
36012 KB |
Output is correct |
13 |
Correct |
1980 ms |
36008 KB |
Output is correct |
14 |
Correct |
2189 ms |
36012 KB |
Output is correct |
15 |
Correct |
1863 ms |
36008 KB |
Output is correct |
16 |
Correct |
1928 ms |
36016 KB |
Output is correct |
17 |
Correct |
1 ms |
464 KB |
Output is correct |
18 |
Correct |
0 ms |
464 KB |
Output is correct |
19 |
Correct |
2 ms |
464 KB |
Output is correct |
20 |
Correct |
3 ms |
464 KB |
Output is correct |
21 |
Correct |
2 ms |
464 KB |
Output is correct |
22 |
Correct |
2 ms |
464 KB |
Output is correct |
23 |
Correct |
3 ms |
464 KB |
Output is correct |
24 |
Correct |
3 ms |
464 KB |
Output is correct |
25 |
Correct |
1 ms |
464 KB |
Output is correct |
26 |
Correct |
3 ms |
592 KB |
Output is correct |
27 |
Correct |
28 ms |
880 KB |
Output is correct |
28 |
Correct |
29 ms |
848 KB |
Output is correct |
29 |
Correct |
26 ms |
848 KB |
Output is correct |
30 |
Correct |
21 ms |
848 KB |
Output is correct |
31 |
Correct |
21 ms |
848 KB |
Output is correct |
32 |
Correct |
0 ms |
464 KB |
Output is correct |
33 |
Correct |
577 ms |
20996 KB |
Output is correct |
34 |
Correct |
1075 ms |
36012 KB |
Output is correct |
35 |
Correct |
1075 ms |
36008 KB |
Output is correct |
36 |
Correct |
1072 ms |
36016 KB |
Output is correct |
37 |
Correct |
1165 ms |
36016 KB |
Output is correct |
38 |
Correct |
1151 ms |
36012 KB |
Output is correct |
39 |
Correct |
0 ms |
464 KB |
Output is correct |
40 |
Correct |
0 ms |
464 KB |
Output is correct |
41 |
Correct |
0 ms |
464 KB |
Output is correct |
42 |
Correct |
713 ms |
16916 KB |
Output is correct |
43 |
Correct |
2280 ms |
36012 KB |
Output is correct |
44 |
Correct |
794 ms |
6568 KB |
Output is correct |
45 |
Correct |
2204 ms |
36012 KB |
Output is correct |
46 |
Correct |
858 ms |
13124 KB |
Output is correct |
47 |
Correct |
2344 ms |
36012 KB |
Output is correct |
48 |
Correct |
2045 ms |
36008 KB |
Output is correct |
49 |
Correct |
2151 ms |
36016 KB |
Output is correct |
50 |
Correct |
2125 ms |
36016 KB |
Output is correct |
51 |
Correct |
2100 ms |
36016 KB |
Output is correct |
52 |
Correct |
2161 ms |
36012 KB |
Output is correct |
53 |
Correct |
1918 ms |
36008 KB |
Output is correct |
54 |
Correct |
1889 ms |
36012 KB |
Output is correct |
55 |
Correct |
1 ms |
464 KB |
Output is correct |
56 |
Correct |
1184 ms |
36004 KB |
Output is correct |
57 |
Correct |
2424 ms |
36012 KB |
Output is correct |
58 |
Correct |
839 ms |
6948 KB |
Output is correct |
59 |
Correct |
2162 ms |
36012 KB |
Output is correct |
60 |
Correct |
883 ms |
13460 KB |
Output is correct |
61 |
Correct |
2339 ms |
36012 KB |
Output is correct |
62 |
Correct |
2434 ms |
36012 KB |
Output is correct |
63 |
Correct |
2405 ms |
36116 KB |
Output is correct |
64 |
Correct |
2441 ms |
36132 KB |
Output is correct |
65 |
Correct |
2263 ms |
36008 KB |
Output is correct |
66 |
Correct |
2435 ms |
36012 KB |
Output is correct |
67 |
Correct |
2103 ms |
36012 KB |
Output is correct |
68 |
Correct |
2009 ms |
36016 KB |
Output is correct |
69 |
Correct |
0 ms |
464 KB |
Output is correct |
70 |
Correct |
1 ms |
464 KB |
Output is correct |
71 |
Correct |
3 ms |
464 KB |
Output is correct |
72 |
Correct |
3 ms |
464 KB |
Output is correct |
73 |
Correct |
2 ms |
464 KB |
Output is correct |
74 |
Correct |
3 ms |
464 KB |
Output is correct |
75 |
Correct |
3 ms |
464 KB |
Output is correct |
76 |
Correct |
0 ms |
464 KB |
Output is correct |
77 |
Correct |
0 ms |
464 KB |
Output is correct |
78 |
Correct |
1 ms |
464 KB |
Output is correct |
79 |
Correct |
3 ms |
464 KB |
Output is correct |
80 |
Correct |
4 ms |
464 KB |
Output is correct |
81 |
Correct |
3 ms |
464 KB |
Output is correct |
82 |
Correct |
2 ms |
464 KB |
Output is correct |
83 |
Correct |
3 ms |
464 KB |
Output is correct |
84 |
Correct |
1 ms |
464 KB |
Output is correct |
85 |
Correct |
5 ms |
464 KB |
Output is correct |
86 |
Correct |
27 ms |
880 KB |
Output is correct |
87 |
Correct |
24 ms |
848 KB |
Output is correct |
88 |
Correct |
22 ms |
848 KB |
Output is correct |
89 |
Correct |
22 ms |
824 KB |
Output is correct |
90 |
Correct |
25 ms |
876 KB |
Output is correct |
91 |
Correct |
1 ms |
464 KB |
Output is correct |
92 |
Correct |
2 ms |
592 KB |
Output is correct |
93 |
Correct |
26 ms |
848 KB |
Output is correct |
94 |
Correct |
27 ms |
848 KB |
Output is correct |
95 |
Correct |
23 ms |
820 KB |
Output is correct |
96 |
Correct |
23 ms |
848 KB |
Output is correct |
97 |
Correct |
21 ms |
848 KB |
Output is correct |
98 |
Correct |
0 ms |
464 KB |
Output is correct |
99 |
Correct |
1032 ms |
36004 KB |
Output is correct |
100 |
Correct |
1050 ms |
36008 KB |
Output is correct |
101 |
Correct |
1014 ms |
36012 KB |
Output is correct |
102 |
Correct |
1025 ms |
36012 KB |
Output is correct |
103 |
Correct |
1074 ms |
36012 KB |
Output is correct |
104 |
Correct |
1016 ms |
36008 KB |
Output is correct |
105 |
Correct |
1 ms |
464 KB |
Output is correct |
106 |
Correct |
547 ms |
20896 KB |
Output is correct |
107 |
Correct |
1028 ms |
36012 KB |
Output is correct |
108 |
Correct |
1025 ms |
36008 KB |
Output is correct |
109 |
Correct |
1018 ms |
35968 KB |
Output is correct |
110 |
Correct |
1070 ms |
36012 KB |
Output is correct |
111 |
Correct |
1012 ms |
36008 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
464 KB |
Output is correct |
2 |
Correct |
0 ms |
464 KB |
Output is correct |
3 |
Incorrect |
996 ms |
29312 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |