#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define pb push_back
mt19937 rng(time(0));
int find_best(int n){
pair<int,int> temp[n+10];
for(int i=0;i<n;i++) temp[i].fi=temp[i].se=-1;
int ct=150,V=n;
while(ct--){
int x=rng()%n;
vector<int>tmp;
if(temp[x].fi==-1) tmp=ask(x);
else tmp.pb(temp[x].fi),tmp.pb(temp[x].se);
temp[x]={tmp[0],tmp[1]};
if(n-(tmp[0]+tmp[1])<V) V=n-(tmp[0]+tmp[1]);
}
int res=-1;
set<int>st;
st.insert(-1),st.insert(n);
auto it=st.begin();
int sajz=0;
while(it!=st.end()){
auto it2=it;
int i=*it;
if(res!=-1 && res==i) break;
it++;
if(it==st.end()) break;
int j=*it;
int l=i+1,r=j-1;
//printf("%i %i %i\n",i,j,sajz);
while(l<=r){
int mid=(l+r)/2;
vector<int>tmp;
if(temp[mid].fi==-1) tmp=ask(mid);
else tmp.pb(temp[mid].fi),tmp.pb(temp[mid].se);
temp[mid]={tmp[0],tmp[1]};
if(n-tmp[0]-tmp[1]!=V){
if(tmp[0]==0 && tmp[1]==0) {res=mid;break;}
st.insert(mid);
r=mid-1;
continue;
}
if(tmp[0]>=1+sajz) r=mid-1;
else l=mid+1;
}
it=it2;
it++;
sajz++;
}
for(auto i=st.begin();i!=st.end();i++){
int x=*i;
if(x==-1 || x==n) continue;
if(temp[x].fi==0 && temp[x].se==0) res=x;
}
//for(auto i=st.begin();i!=st.end();i++) printf("%i ",*i);
//printf("\n");
/*for(int i = 0; i < n; i++) {
std::vector<int> res = ask(i);
if(res[0] + res[1] == 0)
return i;
}*/
return res;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 2 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 3 |
Correct |
2 ms |
1800 KB |
Output is correct |
| 4 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 5 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 6 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 7 |
Correct |
2 ms |
2132 KB |
Output is correct |
| 8 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 9 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 10 |
Correct |
2 ms |
1880 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 2 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 3 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 4 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2136 KB |
Output is correct |
| 6 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 7 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2132 KB |
Output is correct |
| 9 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 10 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 11 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 12 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 13 |
Correct |
4 ms |
1880 KB |
Output is correct |
| 14 |
Correct |
2 ms |
344 KB |
Output is correct |
| 15 |
Correct |
6 ms |
2004 KB |
Output is correct |
| 16 |
Partially correct |
32 ms |
2008 KB |
Partially correct - number of queries: 6642 |
| 17 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 18 |
Partially correct |
40 ms |
2252 KB |
Partially correct - number of queries: 7755 |
| 19 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 20 |
Correct |
11 ms |
1220 KB |
Output is correct |
| 21 |
Correct |
14 ms |
2008 KB |
Output is correct |
| 22 |
Correct |
4 ms |
1880 KB |
Output is correct |
| 23 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 24 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 25 |
Correct |
19 ms |
2000 KB |
Output is correct |
| 26 |
Correct |
23 ms |
1996 KB |
Output is correct |
| 27 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 28 |
Partially correct |
34 ms |
2004 KB |
Partially correct - number of queries: 6507 |
| 29 |
Correct |
22 ms |
2264 KB |
Output is correct |
| 30 |
Partially correct |
41 ms |
2500 KB |
Partially correct - number of queries: 7690 |
| 31 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 32 |
Correct |
4 ms |
1972 KB |
Output is correct |
| 33 |
Correct |
1 ms |
344 KB |
Output is correct |
| 34 |
Correct |
14 ms |
2136 KB |
Output is correct |
| 35 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 36 |
Correct |
10 ms |
2000 KB |
Output is correct |
| 37 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 38 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 39 |
Correct |
24 ms |
2004 KB |
Output is correct |
| 40 |
Partially correct |
29 ms |
2004 KB |
Partially correct - number of queries: 6602 |
| 41 |
Correct |
24 ms |
2004 KB |
Output is correct |
| 42 |
Correct |
19 ms |
2012 KB |
Output is correct |
| 43 |
Correct |
37 ms |
2000 KB |
Output is correct |
| 44 |
Correct |
14 ms |
2004 KB |
Output is correct |
| 45 |
Correct |
12 ms |
2012 KB |
Output is correct |
| 46 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 47 |
Correct |
15 ms |
2000 KB |
Output is correct |
| 48 |
Partially correct |
35 ms |
2244 KB |
Partially correct - number of queries: 5793 |
| 49 |
Correct |
4 ms |
1880 KB |
Output is correct |
| 50 |
Partially correct |
38 ms |
2760 KB |
Partially correct - number of queries: 7742 |
| 51 |
Correct |
14 ms |
2012 KB |
Output is correct |
| 52 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 53 |
Correct |
3 ms |
2128 KB |
Output is correct |
| 54 |
Correct |
16 ms |
2004 KB |
Output is correct |
| 55 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 56 |
Partially correct |
41 ms |
2268 KB |
Partially correct - number of queries: 7757 |
| 57 |
Partially correct |
28 ms |
2240 KB |
Partially correct - number of queries: 5663 |
| 58 |
Correct |
27 ms |
2240 KB |
Output is correct |
| 59 |
Correct |
22 ms |
2240 KB |
Output is correct |
| 60 |
Correct |
17 ms |
2260 KB |
Output is correct |
| 61 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 62 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 63 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 64 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 65 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 66 |
Correct |
4 ms |
2020 KB |
Output is correct |
| 67 |
Correct |
4 ms |
2260 KB |
Output is correct |
| 68 |
Correct |
5 ms |
2008 KB |
Output is correct |
| 69 |
Correct |
5 ms |
2516 KB |
Output is correct |
| 70 |
Correct |
3 ms |
2008 KB |
Output is correct |
| 71 |
Partially correct |
45 ms |
2252 KB |
Partially correct - number of queries: 7983 |
| 72 |
Correct |
5 ms |
1880 KB |
Output is correct |
| 73 |
Partially correct |
44 ms |
2244 KB |
Partially correct - number of queries: 7857 |
| 74 |
Partially correct |
39 ms |
2256 KB |
Partially correct - number of queries: 7927 |
| 75 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 76 |
Partially correct |
47 ms |
2004 KB |
Partially correct - number of queries: 6805 |
| 77 |
Partially correct |
51 ms |
2500 KB |
Partially correct - number of queries: 7322 |
| 78 |
Correct |
4 ms |
1880 KB |
Output is correct |
| 79 |
Correct |
17 ms |
2256 KB |
Output is correct |
| 80 |
Partially correct |
52 ms |
2496 KB |
Partially correct - number of queries: 6941 |
| 81 |
Partially correct |
31 ms |
2000 KB |
Partially correct - number of queries: 6556 |
| 82 |
Partially correct |
38 ms |
2500 KB |
Partially correct - number of queries: 7408 |
| 83 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 84 |
Partially correct |
26 ms |
2000 KB |
Partially correct - number of queries: 6089 |
| 85 |
Partially correct |
38 ms |
2244 KB |
Partially correct - number of queries: 7415 |
| 86 |
Correct |
22 ms |
2236 KB |
Output is correct |
| 87 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 88 |
Correct |
23 ms |
2252 KB |
Output is correct |
| 89 |
Correct |
19 ms |
2516 KB |
Output is correct |
| 90 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 91 |
Correct |
10 ms |
2000 KB |
Output is correct |
| 92 |
Correct |
22 ms |
2260 KB |
Output is correct |
| 93 |
Incorrect |
57 ms |
3340 KB |
Incorrect |
| 94 |
Halted |
0 ms |
0 KB |
- |
