#include "prize.h"
#include <bits/stdc++.h>
#define lint long long
#define rep(i, n) for (int i = 0; i < n; i++)
using namespace std;
int res = -1;
struct state{
int i; int toLeft; int toRight;
int sum(){
return toLeft+toRight;
}
};
void get(state l, state r){
if(r.i-l.i<2){return;}
if(r.toRight==l.toRight){return;}
if(res>=0){return;}
if(r.toRight-l.toRight==r.i-l.i-1)
{
for(int i = l.i+1; i < r.i; i++){
vector<int>ans=ask(i);
if(ans[0]+ans[1]==0) res = i;
}
} else
{
int mid = (l.i+r.i)/2;
vector<int>tmp=ask(mid);
state ansl = state({mid, tmp[0], tmp[1]});
state ansr = ansl;
while(ansl.sum()<l.sum()){
if(ansl.sum()==0){res=ansl.i; return;}
tmp=ask(ansl.i-1);
ansl = state({ansl.i-1, tmp[0], tmp[1]});
}
while(ansr.sum()<l.sum()){
if(ansr.sum()==0){res=ansr.i; return;}
tmp=ask(ansr.i+1);
ansr = state({ansr.i+1, tmp[0], tmp[1]});
}
get(l, ansl);
get(ansr, r);
}
}
state getState(int i){
vector<int>tmp=ask(i);
return state({i, tmp[0], tmp[1]});
}
int find_best(int n)
{
if(n<5000&&false){
rep(i, n){
vector<int>ans=ask(i);
if(ans[0]+ans[1]==0){return i;}
}
}
state l = getState(0);
state r = getState(n-1);
int maxx=0;
rep(i, 20){
state s = getState(rand()%n);
maxx=max(maxx, s.sum());
}
while(l.sum()<maxx){
if(l.sum()==0){return l.i;}
l=getState(l.i+1);
}
while(r.sum()<maxx){
if(r.sum()==0){return r.i;}
r=getState(r.i-1);
}
get(l,r);
return res;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
256 KB |
Output is correct |
| 2 |
Correct |
1 ms |
256 KB |
Output is correct |
| 3 |
Correct |
1 ms |
256 KB |
Output is correct |
| 4 |
Correct |
1 ms |
256 KB |
Output is correct |
| 5 |
Correct |
1 ms |
256 KB |
Output is correct |
| 6 |
Correct |
1 ms |
256 KB |
Output is correct |
| 7 |
Correct |
1 ms |
256 KB |
Output is correct |
| 8 |
Correct |
1 ms |
256 KB |
Output is correct |
| 9 |
Correct |
1 ms |
256 KB |
Output is correct |
| 10 |
Correct |
1 ms |
256 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
256 KB |
Output is correct |
| 3 |
Correct |
1 ms |
384 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
256 KB |
Output is correct |
| 6 |
Correct |
1 ms |
256 KB |
Output is correct |
| 7 |
Correct |
1 ms |
256 KB |
Output is correct |
| 8 |
Correct |
1 ms |
384 KB |
Output is correct |
| 9 |
Correct |
1 ms |
256 KB |
Output is correct |
| 10 |
Correct |
1 ms |
256 KB |
Output is correct |
| 11 |
Correct |
4 ms |
256 KB |
Output is correct |
| 12 |
Correct |
1 ms |
256 KB |
Output is correct |
| 13 |
Correct |
7 ms |
256 KB |
Output is correct |
| 14 |
Correct |
2 ms |
376 KB |
Output is correct |
| 15 |
Correct |
10 ms |
256 KB |
Output is correct |
| 16 |
Correct |
39 ms |
256 KB |
Output is correct |
| 17 |
Correct |
1 ms |
256 KB |
Output is correct |
| 18 |
Partially correct |
45 ms |
256 KB |
Partially correct - number of queries: 5124 |
| 19 |
Correct |
1 ms |
256 KB |
Output is correct |
| 20 |
Correct |
7 ms |
372 KB |
Output is correct |
| 21 |
Correct |
10 ms |
376 KB |
Output is correct |
| 22 |
Correct |
5 ms |
256 KB |
Output is correct |
| 23 |
Correct |
1 ms |
256 KB |
Output is correct |
| 24 |
Correct |
1 ms |
256 KB |
Output is correct |
| 25 |
Correct |
22 ms |
256 KB |
Output is correct |
| 26 |
Correct |
24 ms |
256 KB |
Output is correct |
| 27 |
Correct |
1 ms |
256 KB |
Output is correct |
| 28 |
Correct |
49 ms |
256 KB |
Output is correct |
| 29 |
Correct |
41 ms |
256 KB |
Output is correct |
| 30 |
Partially correct |
27 ms |
256 KB |
Partially correct - number of queries: 5094 |
| 31 |
Correct |
1 ms |
256 KB |
Output is correct |
| 32 |
Correct |
4 ms |
288 KB |
Output is correct |
| 33 |
Correct |
1 ms |
256 KB |
Output is correct |
| 34 |
Correct |
21 ms |
256 KB |
Output is correct |
| 35 |
Correct |
1 ms |
376 KB |
Output is correct |
| 36 |
Correct |
9 ms |
256 KB |
Output is correct |
| 37 |
Correct |
2 ms |
256 KB |
Output is correct |
| 38 |
Correct |
1 ms |
256 KB |
Output is correct |
| 39 |
Correct |
22 ms |
256 KB |
Output is correct |
| 40 |
Correct |
45 ms |
256 KB |
Output is correct |
| 41 |
Correct |
27 ms |
256 KB |
Output is correct |
| 42 |
Correct |
29 ms |
256 KB |
Output is correct |
| 43 |
Correct |
14 ms |
384 KB |
Output is correct |
| 44 |
Correct |
19 ms |
256 KB |
Output is correct |
| 45 |
Correct |
15 ms |
256 KB |
Output is correct |
| 46 |
Correct |
1 ms |
384 KB |
Output is correct |
| 47 |
Correct |
27 ms |
256 KB |
Output is correct |
| 48 |
Correct |
34 ms |
256 KB |
Output is correct |
| 49 |
Correct |
4 ms |
256 KB |
Output is correct |
| 50 |
Partially correct |
60 ms |
256 KB |
Partially correct - number of queries: 5118 |
| 51 |
Correct |
15 ms |
256 KB |
Output is correct |
| 52 |
Correct |
2 ms |
256 KB |
Output is correct |
| 53 |
Correct |
2 ms |
256 KB |
Output is correct |
| 54 |
Correct |
21 ms |
256 KB |
Output is correct |
| 55 |
Correct |
1 ms |
256 KB |
Output is correct |
| 56 |
Partially correct |
54 ms |
256 KB |
Partially correct - number of queries: 5111 |
| 57 |
Correct |
29 ms |
256 KB |
Output is correct |
| 58 |
Correct |
31 ms |
288 KB |
Output is correct |
| 59 |
Correct |
17 ms |
256 KB |
Output is correct |
| 60 |
Correct |
24 ms |
256 KB |
Output is correct |
| 61 |
Correct |
2 ms |
256 KB |
Output is correct |
| 62 |
Correct |
1 ms |
256 KB |
Output is correct |
| 63 |
Correct |
2 ms |
256 KB |
Output is correct |
| 64 |
Correct |
2 ms |
368 KB |
Output is correct |
| 65 |
Correct |
1 ms |
256 KB |
Output is correct |
| 66 |
Correct |
1 ms |
256 KB |
Output is correct |
| 67 |
Correct |
5 ms |
256 KB |
Output is correct |
| 68 |
Correct |
6 ms |
256 KB |
Output is correct |
| 69 |
Correct |
1 ms |
256 KB |
Output is correct |
| 70 |
Correct |
4 ms |
256 KB |
Output is correct |
| 71 |
Partially correct |
67 ms |
256 KB |
Partially correct - number of queries: 5723 |
| 72 |
Correct |
7 ms |
256 KB |
Output is correct |
| 73 |
Partially correct |
62 ms |
256 KB |
Partially correct - number of queries: 5646 |
| 74 |
Partially correct |
66 ms |
256 KB |
Partially correct - number of queries: 5679 |
| 75 |
Correct |
3 ms |
256 KB |
Output is correct |
| 76 |
Correct |
58 ms |
256 KB |
Output is correct |
| 77 |
Partially correct |
61 ms |
256 KB |
Partially correct - number of queries: 5184 |
| 78 |
Correct |
6 ms |
256 KB |
Output is correct |
| 79 |
Correct |
32 ms |
256 KB |
Output is correct |
| 80 |
Partially correct |
60 ms |
256 KB |
Partially correct - number of queries: 5183 |
| 81 |
Partially correct |
40 ms |
256 KB |
Partially correct - number of queries: 5217 |
| 82 |
Partially correct |
60 ms |
256 KB |
Partially correct - number of queries: 5106 |
| 83 |
Correct |
2 ms |
256 KB |
Output is correct |
| 84 |
Correct |
37 ms |
256 KB |
Output is correct |
| 85 |
Partially correct |
46 ms |
256 KB |
Partially correct - number of queries: 5210 |
| 86 |
Correct |
7 ms |
256 KB |
Output is correct |
| 87 |
Correct |
3 ms |
256 KB |
Output is correct |
| 88 |
Correct |
5 ms |
256 KB |
Output is correct |
| 89 |
Correct |
6 ms |
256 KB |
Output is correct |
| 90 |
Correct |
2 ms |
256 KB |
Output is correct |
| 91 |
Correct |
4 ms |
256 KB |
Output is correct |
| 92 |
Correct |
1 ms |
256 KB |
Output is correct |
| 93 |
Correct |
4 ms |
256 KB |
Output is correct |
| 94 |
Correct |
4 ms |
256 KB |
Output is correct |
| 95 |
Correct |
4 ms |
256 KB |
Output is correct |
| 96 |
Correct |
4 ms |
256 KB |
Output is correct |
| 97 |
Correct |
1 ms |
256 KB |
Output is correct |
