#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
const int N=2e5+5;
struct fenwick{
int t[N];
void add(int i,int v){
i++;
while(i<N)t[i]+=v,i+=i&-i;
}
int read(int i){
i++;
int res=0;
while(i>0)res+=t[i],i-=i&-i;
return res;
}
}f;
int cnt=0;
int n;
int ans=-1;
vector<vector<int>> mem(N),mem2(N);
int mx;
vector<int> vec;
vector<int> ask2(int x){
if(mem[x].empty()){
assert(++cnt<=1e4);
mem[x]=mem2[x]=ask(x);
}
return mem[x];
}
int bsearch(){
int l=0,r=vec.size()-1;
bool left=false;
while(l<r){
int mid=(l+r)/2;
int m=vec[mid];
auto res=ask2(m);
int val=res[0]+res[1];
if(val<mx)return m;
if(res[0]-f.read(m-1)){
r=mid-1;
}else{
l=mid+1;
}
}
return vec[l];
}
int find_best(int _n) {
n=_n;
for(int i=0;i*i<=n;i++){
auto res=ask2(i);
mx=max(mx,res[0]+res[1]);
}
for(int i=0;i<n;i++)vec.emplace_back(i);
while(ans==-1){
int x=bsearch();
auto res=ask2(x);
if(res[0]+res[1]==0)return x;
f.add(x,1);
vec.erase(lower_bound(vec.begin(),vec.end(),x));
}
return ans;
}
Compilation message
prize.cpp: In function 'int bsearch()':
prize.cpp:39:7: warning: unused variable 'left' [-Wunused-variable]
39 | bool left=false;
| ^~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
10824 KB |
Output is correct |
| 2 |
Correct |
10 ms |
10856 KB |
Output is correct |
| 3 |
Correct |
9 ms |
10884 KB |
Output is correct |
| 4 |
Correct |
8 ms |
10880 KB |
Output is correct |
| 5 |
Correct |
10 ms |
10872 KB |
Output is correct |
| 6 |
Correct |
10 ms |
10856 KB |
Output is correct |
| 7 |
Correct |
8 ms |
10884 KB |
Output is correct |
| 8 |
Correct |
10 ms |
10884 KB |
Output is correct |
| 9 |
Correct |
10 ms |
10876 KB |
Output is correct |
| 10 |
Correct |
10 ms |
10824 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
10852 KB |
Output is correct |
| 2 |
Correct |
10 ms |
10884 KB |
Output is correct |
| 3 |
Correct |
9 ms |
10888 KB |
Output is correct |
| 4 |
Correct |
10 ms |
10860 KB |
Output is correct |
| 5 |
Correct |
10 ms |
10820 KB |
Output is correct |
| 6 |
Correct |
10 ms |
10844 KB |
Output is correct |
| 7 |
Correct |
10 ms |
10872 KB |
Output is correct |
| 8 |
Correct |
9 ms |
10816 KB |
Output is correct |
| 9 |
Correct |
7 ms |
10876 KB |
Output is correct |
| 10 |
Correct |
9 ms |
10824 KB |
Output is correct |
| 11 |
Correct |
9 ms |
10880 KB |
Output is correct |
| 12 |
Correct |
8 ms |
10884 KB |
Output is correct |
| 13 |
Correct |
14 ms |
10968 KB |
Output is correct |
| 14 |
Correct |
8 ms |
9928 KB |
Output is correct |
| 15 |
Correct |
16 ms |
10868 KB |
Output is correct |
| 16 |
Correct |
55 ms |
11352 KB |
Output is correct |
| 17 |
Correct |
10 ms |
10856 KB |
Output is correct |
| 18 |
Partially correct |
33 ms |
11736 KB |
Partially correct - number of queries: 5949 |
| 19 |
Correct |
9 ms |
10992 KB |
Output is correct |
| 20 |
Correct |
12 ms |
10392 KB |
Output is correct |
| 21 |
Correct |
29 ms |
10860 KB |
Output is correct |
| 22 |
Correct |
15 ms |
10860 KB |
Output is correct |
| 23 |
Correct |
9 ms |
10880 KB |
Output is correct |
| 24 |
Correct |
8 ms |
10824 KB |
Output is correct |
| 25 |
Correct |
40 ms |
11100 KB |
Output is correct |
| 26 |
Correct |
38 ms |
11112 KB |
Output is correct |
| 27 |
Correct |
8 ms |
10884 KB |
Output is correct |
| 28 |
Partially correct |
31 ms |
11540 KB |
Partially correct - number of queries: 5450 |
| 29 |
Correct |
36 ms |
11408 KB |
Output is correct |
| 30 |
Partially correct |
44 ms |
11560 KB |
Partially correct - number of queries: 5880 |
| 31 |
Correct |
8 ms |
10872 KB |
Output is correct |
| 32 |
Correct |
11 ms |
10816 KB |
Output is correct |
| 33 |
Correct |
4 ms |
9680 KB |
Output is correct |
| 34 |
Correct |
24 ms |
10844 KB |
Output is correct |
| 35 |
Correct |
11 ms |
10888 KB |
Output is correct |
| 36 |
Correct |
24 ms |
10972 KB |
Output is correct |
| 37 |
Correct |
9 ms |
10884 KB |
Output is correct |
| 38 |
Correct |
8 ms |
10888 KB |
Output is correct |
| 39 |
Correct |
29 ms |
11008 KB |
Output is correct |
| 40 |
Partially correct |
33 ms |
11516 KB |
Partially correct - number of queries: 5112 |
| 41 |
Correct |
24 ms |
11064 KB |
Output is correct |
| 42 |
Correct |
26 ms |
11248 KB |
Output is correct |
| 43 |
Correct |
38 ms |
11092 KB |
Output is correct |
| 44 |
Correct |
32 ms |
10864 KB |
Output is correct |
| 45 |
Correct |
30 ms |
10848 KB |
Output is correct |
| 46 |
Correct |
11 ms |
10844 KB |
Output is correct |
| 47 |
Correct |
33 ms |
10892 KB |
Output is correct |
| 48 |
Correct |
50 ms |
11320 KB |
Output is correct |
| 49 |
Correct |
13 ms |
10868 KB |
Output is correct |
| 50 |
Partially correct |
32 ms |
11736 KB |
Partially correct - number of queries: 5961 |
| 51 |
Correct |
27 ms |
10908 KB |
Output is correct |
| 52 |
Correct |
8 ms |
10876 KB |
Output is correct |
| 53 |
Correct |
11 ms |
10864 KB |
Output is correct |
| 54 |
Correct |
19 ms |
11004 KB |
Output is correct |
| 55 |
Correct |
8 ms |
10852 KB |
Output is correct |
| 56 |
Partially correct |
62 ms |
11608 KB |
Partially correct - number of queries: 5961 |
| 57 |
Correct |
26 ms |
11288 KB |
Output is correct |
| 58 |
Correct |
26 ms |
11288 KB |
Output is correct |
| 59 |
Correct |
32 ms |
11036 KB |
Output is correct |
| 60 |
Correct |
23 ms |
11084 KB |
Output is correct |
| 61 |
Correct |
11 ms |
10852 KB |
Output is correct |
| 62 |
Correct |
10 ms |
10824 KB |
Output is correct |
| 63 |
Correct |
9 ms |
10844 KB |
Output is correct |
| 64 |
Correct |
9 ms |
10968 KB |
Output is correct |
| 65 |
Correct |
12 ms |
10868 KB |
Output is correct |
| 66 |
Correct |
27 ms |
10844 KB |
Output is correct |
| 67 |
Correct |
15 ms |
10856 KB |
Output is correct |
| 68 |
Correct |
10 ms |
10880 KB |
Output is correct |
| 69 |
Correct |
42 ms |
10824 KB |
Output is correct |
| 70 |
Correct |
15 ms |
10824 KB |
Output is correct |
| 71 |
Partially correct |
57 ms |
11608 KB |
Partially correct - number of queries: 6513 |
| 72 |
Correct |
14 ms |
10940 KB |
Output is correct |
| 73 |
Partially correct |
54 ms |
11612 KB |
Partially correct - number of queries: 6452 |
| 74 |
Partially correct |
56 ms |
11596 KB |
Partially correct - number of queries: 6494 |
| 75 |
Correct |
9 ms |
10884 KB |
Output is correct |
| 76 |
Partially correct |
45 ms |
11616 KB |
Partially correct - number of queries: 5648 |
| 77 |
Partially correct |
60 ms |
11540 KB |
Partially correct - number of queries: 5983 |
| 78 |
Correct |
14 ms |
10948 KB |
Output is correct |
| 79 |
Correct |
35 ms |
11324 KB |
Output is correct |
| 80 |
Partially correct |
52 ms |
11512 KB |
Partially correct - number of queries: 5994 |
| 81 |
Partially correct |
46 ms |
11512 KB |
Partially correct - number of queries: 5950 |
| 82 |
Partially correct |
57 ms |
11616 KB |
Partially correct - number of queries: 5944 |
| 83 |
Correct |
9 ms |
10824 KB |
Output is correct |
| 84 |
Correct |
49 ms |
11468 KB |
Output is correct |
| 85 |
Partially correct |
47 ms |
11632 KB |
Partially correct - number of queries: 6018 |
| 86 |
Correct |
49 ms |
10824 KB |
Output is correct |
| 87 |
Correct |
12 ms |
10824 KB |
Output is correct |
| 88 |
Correct |
38 ms |
10868 KB |
Output is correct |
| 89 |
Correct |
48 ms |
10824 KB |
Output is correct |
| 90 |
Correct |
8 ms |
10824 KB |
Output is correct |
| 91 |
Correct |
34 ms |
10824 KB |
Output is correct |
| 92 |
Correct |
46 ms |
10856 KB |
Output is correct |
| 93 |
Correct |
45 ms |
10936 KB |
Output is correct |
| 94 |
Correct |
55 ms |
10944 KB |
Output is correct |
| 95 |
Correct |
45 ms |
10924 KB |
Output is correct |
| 96 |
Correct |
57 ms |
10940 KB |
Output is correct |
| 97 |
Correct |
47 ms |
10824 KB |
Output is correct |
