#include "prize.h"
#include <vector>
#include <algorithm>
#include <cstring>
using namespace std;
int lft[200100];
int rgt[200100];
int _ask(int x) {
if (lft[x]!=-1) return lft[x]+rgt[x];
auto res = ask(x);
lft[x]=res[0];
rgt[x]=res[1];
return lft[x]+rgt[x];
}
int mx=-1;
int ans=-1;
bool solve(int l,int r,int sl,int sr) {
int m=(l+r)>>1;
int res;
while (m<=r) {
res=_ask(m);
if (res==0) {
ans=m;
return false;
}
if (res>mx) {
mx=res;
return false;
}
if (res==mx) break;
m++;
}
if (m>r) {
//not found
m=(l+r)>>1;
m--;
while (m>=l) {
res=_ask(m);
if (res==0) {
ans=m;
return false;
}
if (res>mx) {
mx=res;
return false;
}
if (res==mx) break;
m--;
}
if (m<l) {
//not found
return true;
}
}
//normal
int ll=lft[m]-sl;
int rr=rgt[m]-sr;
if (ll) if (!solve(l,m-1,sl,rgt[m])) return false;
if (rr) if (!solve(m+1,r,lft[m],sr)) return false;
return true;
}
int find_best(int n) {
memset(lft,-1,sizeof(lft));
memset(rgt,-1,sizeof(rgt));
while (ans==-1) {
solve(0,n-1,0,0);
}
return ans;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
4 ms |
1784 KB |
Output is correct |
| 2 |
Correct |
5 ms |
1972 KB |
Output is correct |
| 3 |
Correct |
4 ms |
1972 KB |
Output is correct |
| 4 |
Correct |
4 ms |
1972 KB |
Output is correct |
| 5 |
Correct |
4 ms |
1972 KB |
Output is correct |
| 6 |
Correct |
4 ms |
1972 KB |
Output is correct |
| 7 |
Correct |
3 ms |
1972 KB |
Output is correct |
| 8 |
Correct |
5 ms |
2084 KB |
Output is correct |
| 9 |
Correct |
3 ms |
2084 KB |
Output is correct |
| 10 |
Correct |
6 ms |
2084 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
2084 KB |
Output is correct |
| 2 |
Correct |
5 ms |
2084 KB |
Output is correct |
| 3 |
Correct |
4 ms |
2084 KB |
Output is correct |
| 4 |
Correct |
4 ms |
2084 KB |
Output is correct |
| 5 |
Correct |
5 ms |
2084 KB |
Output is correct |
| 6 |
Correct |
4 ms |
2092 KB |
Output is correct |
| 7 |
Correct |
5 ms |
2096 KB |
Output is correct |
| 8 |
Correct |
4 ms |
2100 KB |
Output is correct |
| 9 |
Correct |
3 ms |
2108 KB |
Output is correct |
| 10 |
Correct |
3 ms |
2108 KB |
Output is correct |
| 11 |
Correct |
7 ms |
2108 KB |
Output is correct |
| 12 |
Correct |
6 ms |
2108 KB |
Output is correct |
| 13 |
Correct |
6 ms |
2108 KB |
Output is correct |
| 14 |
Correct |
5 ms |
2108 KB |
Output is correct |
| 15 |
Correct |
13 ms |
2108 KB |
Output is correct |
| 16 |
Correct |
24 ms |
2108 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2108 KB |
Output is correct |
| 18 |
Correct |
41 ms |
2108 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2108 KB |
Output is correct |
| 20 |
Correct |
14 ms |
2108 KB |
Output is correct |
| 21 |
Correct |
28 ms |
2108 KB |
Output is correct |
| 22 |
Correct |
7 ms |
2108 KB |
Output is correct |
| 23 |
Correct |
4 ms |
2108 KB |
Output is correct |
| 24 |
Correct |
4 ms |
2108 KB |
Output is correct |
| 25 |
Correct |
28 ms |
2108 KB |
Output is correct |
| 26 |
Correct |
23 ms |
2108 KB |
Output is correct |
| 27 |
Correct |
5 ms |
2108 KB |
Output is correct |
| 28 |
Correct |
25 ms |
2108 KB |
Output is correct |
| 29 |
Correct |
41 ms |
2108 KB |
Output is correct |
| 30 |
Correct |
28 ms |
2108 KB |
Output is correct |
| 31 |
Correct |
5 ms |
2108 KB |
Output is correct |
| 32 |
Correct |
6 ms |
2108 KB |
Output is correct |
| 33 |
Correct |
4 ms |
2108 KB |
Output is correct |
| 34 |
Correct |
20 ms |
2108 KB |
Output is correct |
| 35 |
Correct |
5 ms |
2108 KB |
Output is correct |
| 36 |
Correct |
20 ms |
2108 KB |
Output is correct |
| 37 |
Correct |
7 ms |
2108 KB |
Output is correct |
| 38 |
Correct |
4 ms |
2108 KB |
Output is correct |
| 39 |
Correct |
12 ms |
2108 KB |
Output is correct |
| 40 |
Correct |
56 ms |
2108 KB |
Output is correct |
| 41 |
Correct |
27 ms |
2108 KB |
Output is correct |
| 42 |
Correct |
30 ms |
2108 KB |
Output is correct |
| 43 |
Correct |
28 ms |
2108 KB |
Output is correct |
| 44 |
Correct |
30 ms |
2108 KB |
Output is correct |
| 45 |
Correct |
24 ms |
2108 KB |
Output is correct |
| 46 |
Correct |
5 ms |
2108 KB |
Output is correct |
| 47 |
Correct |
23 ms |
2108 KB |
Output is correct |
| 48 |
Correct |
32 ms |
2108 KB |
Output is correct |
| 49 |
Correct |
7 ms |
2108 KB |
Output is correct |
| 50 |
Correct |
59 ms |
2108 KB |
Output is correct |
| 51 |
Correct |
28 ms |
2108 KB |
Output is correct |
| 52 |
Correct |
5 ms |
2108 KB |
Output is correct |
| 53 |
Correct |
6 ms |
2108 KB |
Output is correct |
| 54 |
Correct |
13 ms |
2108 KB |
Output is correct |
| 55 |
Correct |
4 ms |
2108 KB |
Output is correct |
| 56 |
Correct |
62 ms |
2108 KB |
Output is correct |
| 57 |
Correct |
28 ms |
2108 KB |
Output is correct |
| 58 |
Correct |
16 ms |
2108 KB |
Output is correct |
| 59 |
Correct |
41 ms |
2108 KB |
Output is correct |
| 60 |
Correct |
31 ms |
2108 KB |
Output is correct |
| 61 |
Correct |
7 ms |
2112 KB |
Output is correct |
| 62 |
Correct |
3 ms |
2112 KB |
Output is correct |
| 63 |
Correct |
4 ms |
2112 KB |
Output is correct |
| 64 |
Correct |
6 ms |
2112 KB |
Output is correct |
| 65 |
Correct |
5 ms |
2112 KB |
Output is correct |
| 66 |
Correct |
5 ms |
2112 KB |
Output is correct |
| 67 |
Correct |
9 ms |
2112 KB |
Output is correct |
| 68 |
Correct |
4 ms |
2112 KB |
Output is correct |
| 69 |
Correct |
7 ms |
2112 KB |
Output is correct |
| 70 |
Correct |
8 ms |
2112 KB |
Output is correct |
| 71 |
Correct |
69 ms |
2112 KB |
Output is correct |
| 72 |
Correct |
7 ms |
2112 KB |
Output is correct |
| 73 |
Correct |
57 ms |
2112 KB |
Output is correct |
| 74 |
Correct |
39 ms |
2112 KB |
Output is correct |
| 75 |
Correct |
6 ms |
2112 KB |
Output is correct |
| 76 |
Correct |
55 ms |
2112 KB |
Output is correct |
| 77 |
Correct |
60 ms |
2112 KB |
Output is correct |
| 78 |
Correct |
9 ms |
2112 KB |
Output is correct |
| 79 |
Correct |
35 ms |
2112 KB |
Output is correct |
| 80 |
Correct |
63 ms |
2112 KB |
Output is correct |
| 81 |
Correct |
55 ms |
2112 KB |
Output is correct |
| 82 |
Correct |
55 ms |
2112 KB |
Output is correct |
| 83 |
Correct |
4 ms |
2112 KB |
Output is correct |
| 84 |
Correct |
54 ms |
2112 KB |
Output is correct |
| 85 |
Correct |
41 ms |
2112 KB |
Output is correct |
| 86 |
Correct |
10 ms |
2112 KB |
Output is correct |
| 87 |
Correct |
5 ms |
2112 KB |
Output is correct |
| 88 |
Correct |
15 ms |
2112 KB |
Output is correct |
| 89 |
Correct |
12 ms |
2112 KB |
Output is correct |
| 90 |
Correct |
3 ms |
2112 KB |
Output is correct |
| 91 |
Correct |
9 ms |
2112 KB |
Output is correct |
| 92 |
Correct |
18 ms |
2116 KB |
Output is correct |
| 93 |
Correct |
6 ms |
2116 KB |
Output is correct |
| 94 |
Correct |
6 ms |
2116 KB |
Output is correct |
| 95 |
Correct |
5 ms |
2116 KB |
Output is correct |
| 96 |
Correct |
6 ms |
2116 KB |
Output is correct |
| 97 |
Correct |
3 ms |
2116 KB |
Output is correct |
