#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define vll vector<ll>
#define all(x) begin(x),end(x)
#define pb push_back
std::vector<int> ask(int i);
int find_best(int n)
{
int ans=-1;
int i=0;
auto it1=ask(0);
while(1)
{
// cout<<"Starting from "<<i<<endl;
int s=i,e=n;
auto lasp=it1;
if(lasp[0]==0 and lasp[1]==0)
return i;
while(s+1<e){
int mid=(s+e)/2;
auto it=ask(mid);
// cout<<"Checking "<<mid<<endl;
// cout<<it1[0]<<' '<<it1[1]<<endl;
// cout<<it[0]<<' '<<it[1]<<endl;
if((it1[0]==it[0] and it1[1]==it[1]))
{
s=mid;
}
else{
int cur_sum=it[0]+it[1];
int back_sum=it1[0]+it1[1];
// We want to know if there is any element greater than i in the [i,mid]
if(back_sum<cur_sum)
{
// it is smaller than current element
// can't solve from here
// ll rp=rand()%2;
// if(rp)
// s=mid;
// Recursively call for both side
// or maybe stop binary search
e=i+1;
lasp=ask(i+1);
break;
}
else{
e=mid;
lasp=it;
}
}
// if((it[0]+it[1])!=((it1[0]+it1[1])))
// {
// e=mid;
// }
// else{
// // if max(a1,a2,a3,..,an) <= k
// // if this is the case
// // then it1[1]==it[1]
// // also it1[0]==it[0]
// s=mid;
// }
}
// cout<<"Solved for "<<i<<' '<<s<<' '<<e<<endl;
if(e==n)
{
break;
}
i=e;
it1=lasp;
}
return i;
}
Compilation message
prize.cpp: In function 'int find_best(int)':
prize.cpp:13:9: warning: unused variable 'ans' [-Wunused-variable]
13 | int ans=-1;
| ^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
344 KB |
Output is correct |
| 3 |
Correct |
1 ms |
344 KB |
Output is correct |
| 4 |
Correct |
0 ms |
344 KB |
Output is correct |
| 5 |
Correct |
1 ms |
344 KB |
Output is correct |
| 6 |
Correct |
0 ms |
344 KB |
Output is correct |
| 7 |
Correct |
0 ms |
344 KB |
Output is correct |
| 8 |
Correct |
0 ms |
428 KB |
Output is correct |
| 9 |
Correct |
1 ms |
344 KB |
Output is correct |
| 10 |
Correct |
0 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
420 KB |
Output is correct |
| 4 |
Correct |
0 ms |
344 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| 6 |
Correct |
0 ms |
344 KB |
Output is correct |
| 7 |
Correct |
0 ms |
344 KB |
Output is correct |
| 8 |
Correct |
0 ms |
344 KB |
Output is correct |
| 9 |
Correct |
0 ms |
344 KB |
Output is correct |
| 10 |
Correct |
1 ms |
344 KB |
Output is correct |
| 11 |
Correct |
2 ms |
344 KB |
Output is correct |
| 12 |
Correct |
0 ms |
344 KB |
Output is correct |
| 13 |
Correct |
3 ms |
420 KB |
Output is correct |
| 14 |
Correct |
2 ms |
344 KB |
Output is correct |
| 15 |
Correct |
9 ms |
424 KB |
Output is correct |
| 16 |
Partially correct |
38 ms |
344 KB |
Partially correct - number of queries: 7332 |
| 17 |
Correct |
0 ms |
344 KB |
Output is correct |
| 18 |
Partially correct |
47 ms |
344 KB |
Partially correct - number of queries: 8608 |
| 19 |
Correct |
0 ms |
344 KB |
Output is correct |
| 20 |
Correct |
9 ms |
344 KB |
Output is correct |
| 21 |
Correct |
21 ms |
344 KB |
Output is correct |
| 22 |
Correct |
3 ms |
344 KB |
Output is correct |
| 23 |
Correct |
0 ms |
344 KB |
Output is correct |
| 24 |
Correct |
0 ms |
344 KB |
Output is correct |
| 25 |
Correct |
22 ms |
344 KB |
Output is correct |
| 26 |
Correct |
14 ms |
340 KB |
Output is correct |
| 27 |
Correct |
1 ms |
344 KB |
Output is correct |
| 28 |
Partially correct |
62 ms |
344 KB |
Partially correct - number of queries: 8169 |
| 29 |
Partially correct |
27 ms |
344 KB |
Partially correct - number of queries: 6207 |
| 30 |
Partially correct |
41 ms |
344 KB |
Partially correct - number of queries: 8551 |
| 31 |
Correct |
1 ms |
344 KB |
Output is correct |
| 32 |
Correct |
2 ms |
344 KB |
Output is correct |
| 33 |
Correct |
0 ms |
344 KB |
Output is correct |
| 34 |
Correct |
15 ms |
424 KB |
Output is correct |
| 35 |
Correct |
2 ms |
344 KB |
Output is correct |
| 36 |
Correct |
9 ms |
344 KB |
Output is correct |
| 37 |
Correct |
1 ms |
344 KB |
Output is correct |
| 38 |
Correct |
0 ms |
428 KB |
Output is correct |
| 39 |
Correct |
21 ms |
344 KB |
Output is correct |
| 40 |
Partially correct |
40 ms |
344 KB |
Partially correct - number of queries: 7305 |
| 41 |
Partially correct |
27 ms |
428 KB |
Partially correct - number of queries: 5148 |
| 42 |
Partially correct |
25 ms |
344 KB |
Partially correct - number of queries: 5148 |
| 43 |
Correct |
21 ms |
344 KB |
Output is correct |
| 44 |
Correct |
16 ms |
344 KB |
Output is correct |
| 45 |
Correct |
14 ms |
340 KB |
Output is correct |
| 46 |
Correct |
0 ms |
424 KB |
Output is correct |
| 47 |
Correct |
16 ms |
344 KB |
Output is correct |
| 48 |
Partially correct |
36 ms |
348 KB |
Partially correct - number of queries: 6364 |
| 49 |
Correct |
3 ms |
344 KB |
Output is correct |
| 50 |
Partially correct |
49 ms |
348 KB |
Partially correct - number of queries: 8606 |
| 51 |
Correct |
24 ms |
348 KB |
Output is correct |
| 52 |
Correct |
1 ms |
344 KB |
Output is correct |
| 53 |
Correct |
1 ms |
428 KB |
Output is correct |
| 54 |
Correct |
17 ms |
344 KB |
Output is correct |
| 55 |
Correct |
0 ms |
428 KB |
Output is correct |
| 56 |
Partially correct |
53 ms |
344 KB |
Partially correct - number of queries: 8607 |
| 57 |
Partially correct |
39 ms |
344 KB |
Partially correct - number of queries: 6287 |
| 58 |
Partially correct |
39 ms |
344 KB |
Partially correct - number of queries: 6395 |
| 59 |
Partially correct |
33 ms |
344 KB |
Partially correct - number of queries: 5148 |
| 60 |
Correct |
21 ms |
344 KB |
Output is correct |
| 61 |
Correct |
1 ms |
344 KB |
Output is correct |
| 62 |
Correct |
1 ms |
344 KB |
Output is correct |
| 63 |
Correct |
2 ms |
344 KB |
Output is correct |
| 64 |
Correct |
1 ms |
344 KB |
Output is correct |
| 65 |
Correct |
1 ms |
344 KB |
Output is correct |
| 66 |
Correct |
1 ms |
340 KB |
Output is correct |
| 67 |
Correct |
1 ms |
340 KB |
Output is correct |
| 68 |
Correct |
4 ms |
424 KB |
Output is correct |
| 69 |
Correct |
1 ms |
340 KB |
Output is correct |
| 70 |
Correct |
0 ms |
344 KB |
Output is correct |
| 71 |
Partially correct |
38 ms |
344 KB |
Partially correct - number of queries: 8729 |
| 72 |
Correct |
3 ms |
344 KB |
Output is correct |
| 73 |
Partially correct |
44 ms |
344 KB |
Partially correct - number of queries: 8617 |
| 74 |
Partially correct |
48 ms |
344 KB |
Partially correct - number of queries: 8668 |
| 75 |
Correct |
1 ms |
340 KB |
Output is correct |
| 76 |
Partially correct |
32 ms |
344 KB |
Partially correct - number of queries: 7458 |
| 77 |
Partially correct |
46 ms |
340 KB |
Partially correct - number of queries: 8621 |
| 78 |
Correct |
3 ms |
344 KB |
Output is correct |
| 79 |
Correct |
16 ms |
344 KB |
Output is correct |
| 80 |
Partially correct |
44 ms |
344 KB |
Partially correct - number of queries: 8622 |
| 81 |
Partially correct |
52 ms |
340 KB |
Partially correct - number of queries: 8633 |
| 82 |
Partially correct |
54 ms |
344 KB |
Partially correct - number of queries: 8560 |
| 83 |
Correct |
1 ms |
344 KB |
Output is correct |
| 84 |
Partially correct |
27 ms |
344 KB |
Partially correct - number of queries: 7056 |
| 85 |
Partially correct |
47 ms |
344 KB |
Partially correct - number of queries: 8611 |
| 86 |
Correct |
22 ms |
344 KB |
Output is correct |
| 87 |
Correct |
2 ms |
344 KB |
Output is correct |
| 88 |
Correct |
16 ms |
344 KB |
Output is correct |
| 89 |
Correct |
18 ms |
344 KB |
Output is correct |
| 90 |
Correct |
1 ms |
344 KB |
Output is correct |
| 91 |
Correct |
13 ms |
344 KB |
Output is correct |
| 92 |
Correct |
17 ms |
344 KB |
Output is correct |
| 93 |
Correct |
2 ms |
344 KB |
Output is correct |
| 94 |
Correct |
2 ms |
344 KB |
Output is correct |
| 95 |
Correct |
2 ms |
344 KB |
Output is correct |
| 96 |
Correct |
2 ms |
344 KB |
Output is correct |
| 97 |
Correct |
1 ms |
344 KB |
Output is correct |
