#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
typedef vector<int> vi;
const int MX=200010;
bool up[MX];
int L[MX], R[MX], sum, n, ans=-1;
void my_ask(int i){
if(L[i]>=0) return;
vi now=ask(i);
L[i]=now[0], R[i]=now[1];
}
void search(int s, int e, int lc, int mc, int rc){
if(s>e || mc<=0) return;
int m=(s+e)/2;
for(int i=m; i<=e; i++){
my_ask(i);
if(L[i]+R[i]==0){ ans=i; return; }
if(L[i]+R[i]==sum){
search(s,m-1, lc, L[i]-(i-m)-lc, R[i]+i-m);
search(i+1,e, L[i], R[i]-rc, rc);
return;
}
}
for(int i=m; i>=s; i--){
my_ask(i);
if(L[i]+R[i]==0){ ans=i; return; }
if(L[i]+R[i]==sum){
search(s,i-1, lc, L[i]-lc, R[i]);
return;
}
}
}
void solve(){
int b=0;
for(; b*b<=n; b++);
vector<int> V;
for(int i=0; i<min(500, n); i++){
my_ask(i);
sum=max(sum, L[i]+R[i]);
}
V.push_back(0);
for(int ii=0; ii*b<n; ii++){
for(int j=ii*b; j<min(n, ii*b+b); j++){
my_ask(j);
if(L[j]+R[j]==sum){
V.push_back(j);
break;
}
}
}
V.push_back(n);
for(int i=0; i<(int)V.size()-1; i++){
int s=V[i], e=V[i+1];
my_ask(s); if(e<n) my_ask(e);
int l=L[s], r=0;
if(e<n) r = R[e] + (L[e]+R[e]<sum);
search(s,e-1,l,sum-l-r,r);
}
}
int find_best(int _n){
n=_n;
for(int i=0; i<n; i++) L[i]=R[i]=-1;
solve();
assert(ans>=0 && L[ans]==0 && R[ans]==0);
return ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
13 ms |
1784 KB |
Output is correct |
| 2 |
Correct |
18 ms |
1844 KB |
Output is correct |
| 3 |
Correct |
8 ms |
1908 KB |
Output is correct |
| 4 |
Correct |
14 ms |
1908 KB |
Output is correct |
| 5 |
Correct |
12 ms |
1908 KB |
Output is correct |
| 6 |
Correct |
19 ms |
1908 KB |
Output is correct |
| 7 |
Correct |
13 ms |
1908 KB |
Output is correct |
| 8 |
Correct |
14 ms |
1944 KB |
Output is correct |
| 9 |
Correct |
15 ms |
1944 KB |
Output is correct |
| 10 |
Correct |
16 ms |
2084 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
15 ms |
2084 KB |
Output is correct |
| 2 |
Correct |
9 ms |
2084 KB |
Output is correct |
| 3 |
Correct |
13 ms |
2084 KB |
Output is correct |
| 4 |
Correct |
16 ms |
2108 KB |
Output is correct |
| 5 |
Correct |
11 ms |
2108 KB |
Output is correct |
| 6 |
Correct |
13 ms |
2108 KB |
Output is correct |
| 7 |
Correct |
11 ms |
2108 KB |
Output is correct |
| 8 |
Correct |
15 ms |
2108 KB |
Output is correct |
| 9 |
Correct |
14 ms |
2108 KB |
Output is correct |
| 10 |
Correct |
13 ms |
2108 KB |
Output is correct |
| 11 |
Correct |
16 ms |
2108 KB |
Output is correct |
| 12 |
Correct |
17 ms |
2108 KB |
Output is correct |
| 13 |
Correct |
18 ms |
2108 KB |
Output is correct |
| 14 |
Correct |
13 ms |
2108 KB |
Output is correct |
| 15 |
Correct |
45 ms |
2108 KB |
Output is correct |
| 16 |
Correct |
49 ms |
2108 KB |
Output is correct |
| 17 |
Correct |
64 ms |
2112 KB |
Output is correct |
| 18 |
Correct |
63 ms |
2112 KB |
Output is correct |
| 19 |
Correct |
61 ms |
2136 KB |
Output is correct |
| 20 |
Correct |
41 ms |
2136 KB |
Output is correct |
| 21 |
Correct |
36 ms |
2136 KB |
Output is correct |
| 22 |
Correct |
20 ms |
2136 KB |
Output is correct |
| 23 |
Correct |
9 ms |
2144 KB |
Output is correct |
| 24 |
Correct |
22 ms |
2144 KB |
Output is correct |
| 25 |
Correct |
80 ms |
2144 KB |
Output is correct |
| 26 |
Correct |
47 ms |
2144 KB |
Output is correct |
| 27 |
Correct |
17 ms |
2144 KB |
Output is correct |
| 28 |
Correct |
44 ms |
2144 KB |
Output is correct |
| 29 |
Correct |
58 ms |
2144 KB |
Output is correct |
| 30 |
Correct |
64 ms |
2144 KB |
Output is correct |
| 31 |
Correct |
30 ms |
2224 KB |
Output is correct |
| 32 |
Correct |
21 ms |
2224 KB |
Output is correct |
| 33 |
Correct |
5 ms |
2224 KB |
Output is correct |
| 34 |
Correct |
49 ms |
2224 KB |
Output is correct |
| 35 |
Correct |
22 ms |
2224 KB |
Output is correct |
| 36 |
Correct |
64 ms |
2224 KB |
Output is correct |
| 37 |
Correct |
16 ms |
2224 KB |
Output is correct |
| 38 |
Correct |
20 ms |
2224 KB |
Output is correct |
| 39 |
Correct |
58 ms |
2224 KB |
Output is correct |
| 40 |
Correct |
31 ms |
2236 KB |
Output is correct |
| 41 |
Correct |
63 ms |
2236 KB |
Output is correct |
| 42 |
Correct |
61 ms |
2236 KB |
Output is correct |
| 43 |
Correct |
51 ms |
2236 KB |
Output is correct |
| 44 |
Correct |
70 ms |
2236 KB |
Output is correct |
| 45 |
Correct |
57 ms |
2236 KB |
Output is correct |
| 46 |
Correct |
72 ms |
2236 KB |
Output is correct |
| 47 |
Correct |
72 ms |
2236 KB |
Output is correct |
| 48 |
Correct |
26 ms |
2236 KB |
Output is correct |
| 49 |
Correct |
48 ms |
2236 KB |
Output is correct |
| 50 |
Correct |
60 ms |
2236 KB |
Output is correct |
| 51 |
Correct |
68 ms |
2236 KB |
Output is correct |
| 52 |
Correct |
29 ms |
2236 KB |
Output is correct |
| 53 |
Correct |
24 ms |
2236 KB |
Output is correct |
| 54 |
Correct |
25 ms |
2236 KB |
Output is correct |
| 55 |
Correct |
26 ms |
2236 KB |
Output is correct |
| 56 |
Correct |
60 ms |
2236 KB |
Output is correct |
| 57 |
Correct |
45 ms |
2236 KB |
Output is correct |
| 58 |
Correct |
43 ms |
2236 KB |
Output is correct |
| 59 |
Correct |
74 ms |
2236 KB |
Output is correct |
| 60 |
Correct |
50 ms |
2236 KB |
Output is correct |
| 61 |
Correct |
12 ms |
2236 KB |
Output is correct |
| 62 |
Correct |
17 ms |
2236 KB |
Output is correct |
| 63 |
Correct |
16 ms |
2236 KB |
Output is correct |
| 64 |
Correct |
17 ms |
2236 KB |
Output is correct |
| 65 |
Correct |
16 ms |
2236 KB |
Output is correct |
| 66 |
Correct |
17 ms |
2236 KB |
Output is correct |
| 67 |
Correct |
19 ms |
2236 KB |
Output is correct |
| 68 |
Correct |
7 ms |
2236 KB |
Output is correct |
| 69 |
Correct |
24 ms |
2236 KB |
Output is correct |
| 70 |
Correct |
19 ms |
2236 KB |
Output is correct |
| 71 |
Partially correct |
56 ms |
2236 KB |
Partially correct - number of queries: 5166 |
| 72 |
Correct |
13 ms |
2236 KB |
Output is correct |
| 73 |
Partially correct |
52 ms |
2236 KB |
Partially correct - number of queries: 5110 |
| 74 |
Partially correct |
65 ms |
2236 KB |
Partially correct - number of queries: 5134 |
| 75 |
Correct |
15 ms |
2236 KB |
Output is correct |
| 76 |
Correct |
40 ms |
2236 KB |
Output is correct |
| 77 |
Correct |
66 ms |
2236 KB |
Output is correct |
| 78 |
Correct |
16 ms |
2236 KB |
Output is correct |
| 79 |
Correct |
39 ms |
2236 KB |
Output is correct |
| 80 |
Correct |
50 ms |
2236 KB |
Output is correct |
| 81 |
Correct |
72 ms |
2236 KB |
Output is correct |
| 82 |
Correct |
59 ms |
2236 KB |
Output is correct |
| 83 |
Correct |
9 ms |
2236 KB |
Output is correct |
| 84 |
Correct |
50 ms |
2236 KB |
Output is correct |
| 85 |
Correct |
59 ms |
2236 KB |
Output is correct |
| 86 |
Correct |
11 ms |
2236 KB |
Output is correct |
| 87 |
Correct |
12 ms |
2236 KB |
Output is correct |
| 88 |
Correct |
11 ms |
2236 KB |
Output is correct |
| 89 |
Correct |
9 ms |
2236 KB |
Output is correct |
| 90 |
Correct |
14 ms |
2236 KB |
Output is correct |
| 91 |
Correct |
12 ms |
2236 KB |
Output is correct |
| 92 |
Correct |
15 ms |
2236 KB |
Output is correct |
| 93 |
Correct |
15 ms |
2236 KB |
Output is correct |
| 94 |
Correct |
13 ms |
2236 KB |
Output is correct |
| 95 |
Correct |
12 ms |
2236 KB |
Output is correct |
| 96 |
Correct |
8 ms |
2236 KB |
Output is correct |
| 97 |
Correct |
11 ms |
2236 KB |
Output is correct |
