#include<bits/stdc++.h>
#include "prize.h"
#define X first
#define Y second
using namespace std;
typedef pair<int,int> pii;
int numb, q_count = 4999;
pii P[210000];
bool mark[210000];
vector<int>vtmp;
pii query(int x)
{
if(mark[x]) return P[x];
mark[x]=true;
q_count --;
vtmp=ask(x);
pii tmp=pii(vtmp[0],vtmp[1]);
if(tmp.X+tmp.Y==0) throw x;
return P[x]=tmp;
}
void bs(int l,int r,int nl,int nr)
{
if(l>r) return;
for(int i=0;i<=r-l;i++)
{
int mid,midl=(l+r)/2-i/2,midr=(l+r)/2+(i+1)/2;
if(i%2==0) mid=midl;
else mid=midr;
pii tmp=query(mid);
if(tmp.X+tmp.Y==numb)
{
int tmpl=(i%2==0?0:midr-midl);
int tmpr=(i%2==1?0:midr-midl);
if(tmp.X-tmpl>nl) bs(l,midl-1,nl,tmp.Y+tmpl);
if(tmp.Y-tmpr>nr) bs(midr+1,r,tmp.X+tmpr,nr);
break;
}
}
}
int find_best(int n)
{
if(n==1) return 0;
try{
numb=0;
memset(mark,false,sizeof mark);
int p=0;
for(int i=0;i<sqrt(n)+30 && i<n && numb<27;i++)
{
pii tmp=query(i);
if(tmp.X+tmp.Y>numb) p=i;
numb=max(numb,tmp.X+tmp.Y);
}
bs(p,n-1,p,0);
}
catch(int ans){
for(int i=0;i<q_count;i++)
ask(0);
return ans;
}
return -1;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
47 ms |
700 KB |
Output is correct |
2 |
Correct |
50 ms |
748 KB |
Output is correct |
3 |
Correct |
43 ms |
620 KB |
Output is correct |
4 |
Correct |
45 ms |
620 KB |
Output is correct |
5 |
Correct |
52 ms |
620 KB |
Output is correct |
6 |
Correct |
43 ms |
620 KB |
Output is correct |
7 |
Correct |
44 ms |
620 KB |
Output is correct |
8 |
Correct |
41 ms |
620 KB |
Output is correct |
9 |
Correct |
54 ms |
708 KB |
Output is correct |
10 |
Correct |
42 ms |
748 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
47 ms |
708 KB |
Output is correct |
2 |
Correct |
38 ms |
620 KB |
Output is correct |
3 |
Correct |
46 ms |
620 KB |
Output is correct |
4 |
Correct |
64 ms |
748 KB |
Output is correct |
5 |
Correct |
41 ms |
620 KB |
Output is correct |
6 |
Correct |
43 ms |
620 KB |
Output is correct |
7 |
Correct |
40 ms |
620 KB |
Output is correct |
8 |
Correct |
67 ms |
620 KB |
Output is correct |
9 |
Correct |
74 ms |
620 KB |
Output is correct |
10 |
Correct |
43 ms |
620 KB |
Output is correct |
11 |
Correct |
62 ms |
876 KB |
Output is correct |
12 |
Correct |
47 ms |
620 KB |
Output is correct |
13 |
Correct |
46 ms |
1300 KB |
Output is correct |
14 |
Correct |
62 ms |
620 KB |
Output is correct |
15 |
Correct |
55 ms |
876 KB |
Output is correct |
16 |
Correct |
49 ms |
1992 KB |
Output is correct |
17 |
Correct |
62 ms |
620 KB |
Output is correct |
18 |
Correct |
45 ms |
2156 KB |
Output is correct |
19 |
Correct |
46 ms |
620 KB |
Output is correct |
20 |
Correct |
40 ms |
992 KB |
Output is correct |
21 |
Correct |
49 ms |
1260 KB |
Output is correct |
22 |
Correct |
54 ms |
876 KB |
Output is correct |
23 |
Correct |
28 ms |
708 KB |
Output is correct |
24 |
Correct |
40 ms |
744 KB |
Output is correct |
25 |
Correct |
58 ms |
1536 KB |
Output is correct |
26 |
Correct |
51 ms |
1388 KB |
Output is correct |
27 |
Correct |
44 ms |
636 KB |
Output is correct |
28 |
Correct |
52 ms |
2156 KB |
Output is correct |
29 |
Correct |
40 ms |
1900 KB |
Output is correct |
30 |
Correct |
51 ms |
2156 KB |
Output is correct |
31 |
Correct |
29 ms |
704 KB |
Output is correct |
32 |
Correct |
41 ms |
1132 KB |
Output is correct |
33 |
Correct |
66 ms |
620 KB |
Output is correct |
34 |
Correct |
44 ms |
1132 KB |
Output is correct |
35 |
Correct |
44 ms |
876 KB |
Output is correct |
36 |
Correct |
48 ms |
1004 KB |
Output is correct |
37 |
Correct |
77 ms |
748 KB |
Output is correct |
38 |
Correct |
56 ms |
748 KB |
Output is correct |
39 |
Correct |
52 ms |
1388 KB |
Output is correct |
40 |
Correct |
47 ms |
2156 KB |
Output is correct |
41 |
Correct |
48 ms |
1516 KB |
Output is correct |
42 |
Correct |
59 ms |
1516 KB |
Output is correct |
43 |
Correct |
49 ms |
1644 KB |
Output is correct |
44 |
Correct |
53 ms |
1260 KB |
Output is correct |
45 |
Correct |
68 ms |
1000 KB |
Output is correct |
46 |
Correct |
52 ms |
620 KB |
Output is correct |
47 |
Correct |
65 ms |
1260 KB |
Output is correct |
48 |
Correct |
44 ms |
1772 KB |
Output is correct |
49 |
Correct |
67 ms |
748 KB |
Output is correct |
50 |
Correct |
45 ms |
2292 KB |
Output is correct |
51 |
Correct |
59 ms |
1388 KB |
Output is correct |
52 |
Correct |
78 ms |
704 KB |
Output is correct |
53 |
Correct |
44 ms |
748 KB |
Output is correct |
54 |
Correct |
49 ms |
1260 KB |
Output is correct |
55 |
Correct |
52 ms |
696 KB |
Output is correct |
56 |
Correct |
38 ms |
2188 KB |
Output is correct |
57 |
Correct |
35 ms |
1724 KB |
Output is correct |
58 |
Correct |
47 ms |
1812 KB |
Output is correct |
59 |
Correct |
62 ms |
1516 KB |
Output is correct |
60 |
Correct |
61 ms |
1516 KB |
Output is correct |
61 |
Correct |
50 ms |
852 KB |
Output is correct |
62 |
Correct |
46 ms |
620 KB |
Output is correct |
63 |
Correct |
44 ms |
764 KB |
Output is correct |
64 |
Correct |
41 ms |
748 KB |
Output is correct |
65 |
Correct |
36 ms |
748 KB |
Output is correct |
66 |
Correct |
56 ms |
632 KB |
Output is correct |
67 |
Correct |
43 ms |
620 KB |
Output is correct |
68 |
Correct |
47 ms |
620 KB |
Output is correct |
69 |
Correct |
28 ms |
744 KB |
Output is correct |
70 |
Correct |
64 ms |
620 KB |
Output is correct |
71 |
Correct |
40 ms |
2184 KB |
Output is correct |
72 |
Correct |
42 ms |
1260 KB |
Output is correct |
73 |
Correct |
30 ms |
2208 KB |
Output is correct |
74 |
Correct |
30 ms |
2204 KB |
Output is correct |
75 |
Correct |
47 ms |
876 KB |
Output is correct |
76 |
Correct |
49 ms |
2156 KB |
Output is correct |
77 |
Correct |
62 ms |
2156 KB |
Output is correct |
78 |
Correct |
66 ms |
1260 KB |
Output is correct |
79 |
Correct |
66 ms |
2028 KB |
Output is correct |
80 |
Correct |
51 ms |
2156 KB |
Output is correct |
81 |
Correct |
49 ms |
2156 KB |
Output is correct |
82 |
Correct |
36 ms |
2220 KB |
Output is correct |
83 |
Correct |
50 ms |
876 KB |
Output is correct |
84 |
Correct |
52 ms |
2156 KB |
Output is correct |
85 |
Correct |
30 ms |
2240 KB |
Output is correct |
86 |
Correct |
41 ms |
620 KB |
Output is correct |
87 |
Correct |
59 ms |
620 KB |
Output is correct |
88 |
Correct |
62 ms |
620 KB |
Output is correct |
89 |
Correct |
45 ms |
620 KB |
Output is correct |
90 |
Correct |
44 ms |
620 KB |
Output is correct |
91 |
Correct |
51 ms |
748 KB |
Output is correct |
92 |
Correct |
43 ms |
620 KB |
Output is correct |
93 |
Correct |
39 ms |
1004 KB |
Output is correct |
94 |
Correct |
52 ms |
1132 KB |
Output is correct |
95 |
Correct |
60 ms |
1192 KB |
Output is correct |
96 |
Correct |
57 ms |
1048 KB |
Output is correct |
97 |
Correct |
47 ms |
896 KB |
Output is correct |