#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
#define N ((int)201*1000)
int n,lft[N],rght[N];
int fen[N];
bool mark[N];
int query2(int x)
{
x++;
int res=0;
for(;x<=n+1;x+=x&-x)res+=fen[x];
return res;
}
set <int> s;
void add(int x)
{
mark[x]=1;s.erase(x);
x++;
for(;x>0;x-=x&-x)fen[x]++;
}
bool query(int x)
{
if(lft[x]+rght[x]>0)return 0;
vector <int> vec;vec=ask(x);
lft[x]=vec[0];rght[x]=vec[1];
return (lft[x]+rght[x]==0);
}
int find_best(int n2)
{
n=n2;
int now=0,id;
queue <pair<int,int> > q;
q.push({-1,n});
for(int i=0;i<300 && q.size();i++)
{
int l=q.front().first,r=q.front().second;q.pop();
int mid=(l+r)/2;
if(query(mid))return mid;
if(now<lft[mid]+rght[mid])
now=lft[mid]+rght[mid],id=mid;
if(mid<r-1)q.push({mid,r});
if(l<mid-1)q.push({l,mid});
}
for(int i=0;i<n;i++)s.insert(i);
while(q.size())q.pop();
q.push({-1,n});
for(int i=0;i<300 && q.size();i++)
{
int l=q.front().first,r=q.front().second;q.pop();
int mid=(l+r)/2;
if(now>lft[mid]+rght[mid])
add(mid);
if(mid<r-1)q.push({mid,r});
if(l<mid-1)q.push({l,mid});
}
for(int t=0;t<600;t++)
{
int l=-1,r=n;
while(l<r-1)
{
int mid=(l+r)/2;
auto it=s.lower_bound(mid);
if(it==s.end() || *it>=r)it--;
mid=*it;
if(query(mid))return mid;
if(lft[mid]+rght[mid]<now)
{
add(mid);
break;
}
if((rght[mid]-query2(mid))-(rght[r]-query2(r))>0)l=mid;
else r=mid;
}
}
}
Compilation message
prize.cpp: In function 'int find_best(int)':
prize.cpp:39:12: warning: variable 'id' set but not used [-Wunused-but-set-variable]
int now=0,id;
^~
prize.cpp:84:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
67 ms |
11256 KB |
Output is correct |
| 2 |
Correct |
72 ms |
11256 KB |
Output is correct |
| 3 |
Correct |
74 ms |
11392 KB |
Output is correct |
| 4 |
Correct |
75 ms |
11460 KB |
Output is correct |
| 5 |
Correct |
79 ms |
11568 KB |
Output is correct |
| 6 |
Correct |
68 ms |
11628 KB |
Output is correct |
| 7 |
Correct |
73 ms |
11628 KB |
Output is correct |
| 8 |
Correct |
67 ms |
11628 KB |
Output is correct |
| 9 |
Correct |
3 ms |
11628 KB |
Output is correct |
| 10 |
Correct |
68 ms |
11628 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
71 ms |
11628 KB |
Output is correct |
| 2 |
Correct |
67 ms |
11628 KB |
Output is correct |
| 3 |
Correct |
71 ms |
11628 KB |
Output is correct |
| 4 |
Correct |
69 ms |
11628 KB |
Output is correct |
| 5 |
Correct |
72 ms |
11628 KB |
Output is correct |
| 6 |
Correct |
76 ms |
11628 KB |
Output is correct |
| 7 |
Correct |
81 ms |
11628 KB |
Output is correct |
| 8 |
Correct |
69 ms |
11628 KB |
Output is correct |
| 9 |
Correct |
3 ms |
11628 KB |
Output is correct |
| 10 |
Correct |
79 ms |
11628 KB |
Output is correct |
| 11 |
Correct |
77 ms |
11780 KB |
Output is correct |
| 12 |
Correct |
73 ms |
11964 KB |
Output is correct |
| 13 |
Correct |
68 ms |
11964 KB |
Output is correct |
| 14 |
Correct |
16 ms |
11964 KB |
Output is correct |
| 15 |
Correct |
104 ms |
12376 KB |
Output is correct |
| 16 |
Correct |
74 ms |
12376 KB |
Output is correct |
| 17 |
Correct |
123 ms |
12440 KB |
Output is correct |
| 18 |
Correct |
71 ms |
12440 KB |
Output is correct |
| 19 |
Correct |
113 ms |
12528 KB |
Output is correct |
| 20 |
Correct |
51 ms |
12528 KB |
Output is correct |
| 21 |
Correct |
91 ms |
12528 KB |
Output is correct |
| 22 |
Correct |
115 ms |
12528 KB |
Output is correct |
| 23 |
Correct |
78 ms |
12528 KB |
Output is correct |
| 24 |
Correct |
72 ms |
12528 KB |
Output is correct |
| 25 |
Correct |
110 ms |
12528 KB |
Output is correct |
| 26 |
Correct |
102 ms |
12528 KB |
Output is correct |
| 27 |
Correct |
74 ms |
12528 KB |
Output is correct |
| 28 |
Correct |
70 ms |
12528 KB |
Output is correct |
| 29 |
Correct |
75 ms |
12528 KB |
Output is correct |
| 30 |
Correct |
70 ms |
12528 KB |
Output is correct |
| 31 |
Correct |
128 ms |
12528 KB |
Output is correct |
| 32 |
Correct |
71 ms |
12528 KB |
Output is correct |
| 33 |
Correct |
3 ms |
12528 KB |
Output is correct |
| 34 |
Correct |
104 ms |
12528 KB |
Output is correct |
| 35 |
Correct |
72 ms |
12528 KB |
Output is correct |
| 36 |
Correct |
133 ms |
12528 KB |
Output is correct |
| 37 |
Correct |
81 ms |
12528 KB |
Output is correct |
| 38 |
Correct |
88 ms |
12528 KB |
Output is correct |
| 39 |
Correct |
115 ms |
12528 KB |
Output is correct |
| 40 |
Correct |
76 ms |
12528 KB |
Output is correct |
| 41 |
Correct |
118 ms |
12528 KB |
Output is correct |
| 42 |
Correct |
97 ms |
12528 KB |
Output is correct |
| 43 |
Correct |
103 ms |
12528 KB |
Output is correct |
| 44 |
Correct |
108 ms |
12528 KB |
Output is correct |
| 45 |
Correct |
113 ms |
12528 KB |
Output is correct |
| 46 |
Correct |
188 ms |
12528 KB |
Output is correct |
| 47 |
Correct |
95 ms |
12528 KB |
Output is correct |
| 48 |
Correct |
88 ms |
12528 KB |
Output is correct |
| 49 |
Correct |
146 ms |
12528 KB |
Output is correct |
| 50 |
Correct |
69 ms |
12528 KB |
Output is correct |
| 51 |
Correct |
113 ms |
12528 KB |
Output is correct |
| 52 |
Correct |
123 ms |
12528 KB |
Output is correct |
| 53 |
Correct |
68 ms |
12528 KB |
Output is correct |
| 54 |
Correct |
103 ms |
12528 KB |
Output is correct |
| 55 |
Correct |
117 ms |
12528 KB |
Output is correct |
| 56 |
Correct |
70 ms |
12528 KB |
Output is correct |
| 57 |
Correct |
98 ms |
12528 KB |
Output is correct |
| 58 |
Correct |
85 ms |
12528 KB |
Output is correct |
| 59 |
Correct |
106 ms |
12528 KB |
Output is correct |
| 60 |
Correct |
96 ms |
12528 KB |
Output is correct |
| 61 |
Correct |
80 ms |
12528 KB |
Output is correct |
| 62 |
Correct |
74 ms |
12528 KB |
Output is correct |
| 63 |
Correct |
71 ms |
12528 KB |
Output is correct |
| 64 |
Correct |
75 ms |
12528 KB |
Output is correct |
| 65 |
Correct |
81 ms |
12528 KB |
Output is correct |
| 66 |
Correct |
79 ms |
12528 KB |
Output is correct |
| 67 |
Correct |
86 ms |
12528 KB |
Output is correct |
| 68 |
Correct |
77 ms |
12528 KB |
Output is correct |
| 69 |
Correct |
85 ms |
12528 KB |
Output is correct |
| 70 |
Correct |
87 ms |
12528 KB |
Output is correct |
| 71 |
Correct |
145 ms |
12528 KB |
Output is correct |
| 72 |
Correct |
91 ms |
12528 KB |
Output is correct |
| 73 |
Correct |
118 ms |
12532 KB |
Output is correct |
| 74 |
Correct |
121 ms |
12560 KB |
Output is correct |
| 75 |
Correct |
69 ms |
12560 KB |
Output is correct |
| 76 |
Correct |
109 ms |
12560 KB |
Output is correct |
| 77 |
Correct |
97 ms |
12560 KB |
Output is correct |
| 78 |
Correct |
74 ms |
12560 KB |
Output is correct |
| 79 |
Correct |
129 ms |
12560 KB |
Output is correct |
| 80 |
Correct |
114 ms |
12560 KB |
Output is correct |
| 81 |
Correct |
136 ms |
12560 KB |
Output is correct |
| 82 |
Correct |
114 ms |
12612 KB |
Output is correct |
| 83 |
Correct |
74 ms |
12612 KB |
Output is correct |
| 84 |
Correct |
117 ms |
12612 KB |
Output is correct |
| 85 |
Correct |
113 ms |
12612 KB |
Output is correct |
| 86 |
Correct |
73 ms |
12612 KB |
Output is correct |
| 87 |
Correct |
71 ms |
12612 KB |
Output is correct |
| 88 |
Correct |
71 ms |
12612 KB |
Output is correct |
| 89 |
Correct |
73 ms |
12612 KB |
Output is correct |
| 90 |
Correct |
67 ms |
12612 KB |
Output is correct |
| 91 |
Correct |
76 ms |
12612 KB |
Output is correct |
| 92 |
Correct |
69 ms |
12612 KB |
Output is correct |
| 93 |
Incorrect |
71 ms |
12612 KB |
answer is not correct |
| 94 |
Halted |
0 ms |
0 KB |
- |
