Submission #67687

# Submission time Handle Problem Language Result Execution time Memory
67687 2018-08-15T08:40:13 Z zscoder The Big Prize (IOI17_prize) C++17
20 / 100
76 ms 5620 KB
#include "prize.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef pair<int,int> ii;

#define fi first
#define se second
#define pb push_back
#define mp make_pair

ii dp[442311];
int n;
int totalquery;
const int MX = 10000;
ii query(int x)
{
	if(x<0||x>=n) return mp(0,0);
	if(dp[x].fi>=0) return dp[x];
	totalquery++; assert(totalquery<=MX);
	vector<int> a = ask(x);
	dp[x].fi=a[0]; dp[x].se=a[1]; return dp[x];
}

vi global;
vector<int> vec;
int newmax;

void solve(int l, int r)
{
	if(l>r) return ;
	//later optimize by using count 
	int mid=(l+r)>>1;
	ii cntl=query(vec[l]);
	assert(cntl.fi+cntl.se<=newmax);
	if(cntl.fi+cntl.se<newmax){global.pb(vec[l]); solve(l+1,r); return ;}
	ii cntr=query(vec[r]);
	assert(cntr.fi+cntr.se<=newmax);
	if(cntr.fi+cntr.se<newmax){global.pb(vec[r]); solve(l,r-1); return ;}
	ii tmp = query(vec[mid]);
	assert(tmp.fi+tmp.se<=newmax);
	if(tmp.fi+tmp.se<newmax)
	{
		global.pb(vec[mid]);
		solve(l,mid-1); solve(mid+1,r);
		return ;
	}
	int cntleft = tmp.fi-cntl.fi;
	int cntright = tmp.se-cntr.se;
	if(cntleft) solve(l,mid);
	if(cntright) solve(mid,r);
}

int find_best(int _n) 
{
	n=_n;
	for(int i=0;i<n;i++) {dp[i]=mp(-1,-1);vec.pb(i);}
	while(vec.size()>1)
	{
		global.clear(); int C=0; int cr=int(vec.size());
		while(cr>1)
		{
			C+=int(sqrt(cr))+1; cr=int(sqrt(cr));
		}
		C=min(C,int(vec.size()));
		newmax=0;
		for(int i=0;i<C;i++) 
		{
			newmax=max(newmax,query(vec[i]).fi+query(vec[i]).se);
			if(newmax>25) break;
		}
		solve(0,int(vec.size())-1);
		vec=global; sort(vec.begin(),vec.end()); vec.erase(unique(vec.begin(),vec.end()),vec.end());
	}
	return vec[0];
}
# Verdict Execution time Memory Grader output
1 Correct 13 ms 2796 KB Output is correct
2 Correct 10 ms 2856 KB Output is correct
3 Correct 14 ms 2968 KB Output is correct
4 Correct 8 ms 2996 KB Output is correct
5 Correct 11 ms 3004 KB Output is correct
6 Correct 10 ms 3004 KB Output is correct
7 Correct 16 ms 3004 KB Output is correct
8 Correct 14 ms 3004 KB Output is correct
9 Correct 15 ms 3004 KB Output is correct
10 Correct 9 ms 3004 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 10 ms 3004 KB Output is correct
2 Correct 9 ms 3004 KB Output is correct
3 Correct 10 ms 3004 KB Output is correct
4 Correct 11 ms 3004 KB Output is correct
5 Correct 11 ms 3004 KB Output is correct
6 Correct 11 ms 3004 KB Output is correct
7 Correct 10 ms 3004 KB Output is correct
8 Correct 12 ms 3004 KB Output is correct
9 Correct 8 ms 3004 KB Output is correct
10 Correct 7 ms 3004 KB Output is correct
11 Correct 10 ms 3004 KB Output is correct
12 Correct 12 ms 3004 KB Output is correct
13 Correct 11 ms 3004 KB Output is correct
14 Correct 14 ms 3004 KB Output is correct
15 Correct 54 ms 3004 KB Output is correct
16 Correct 51 ms 3004 KB Output is correct
17 Correct 64 ms 3004 KB Output is correct
18 Correct 62 ms 3004 KB Output is correct
19 Correct 53 ms 3004 KB Output is correct
20 Correct 20 ms 3004 KB Output is correct
21 Correct 67 ms 3004 KB Output is correct
22 Correct 48 ms 3004 KB Output is correct
23 Correct 14 ms 3004 KB Output is correct
24 Correct 9 ms 3004 KB Output is correct
25 Correct 29 ms 3004 KB Output is correct
26 Correct 55 ms 3004 KB Output is correct
27 Correct 13 ms 3004 KB Output is correct
28 Correct 55 ms 3004 KB Output is correct
29 Correct 51 ms 3004 KB Output is correct
30 Correct 24 ms 3004 KB Output is correct
31 Correct 28 ms 3004 KB Output is correct
32 Correct 14 ms 3004 KB Output is correct
33 Correct 3 ms 3004 KB Output is correct
34 Correct 45 ms 3004 KB Output is correct
35 Correct 12 ms 3004 KB Output is correct
36 Correct 54 ms 3004 KB Output is correct
37 Correct 8 ms 3004 KB Output is correct
38 Correct 16 ms 3004 KB Output is correct
39 Correct 40 ms 3004 KB Output is correct
40 Correct 58 ms 3004 KB Output is correct
41 Correct 74 ms 3004 KB Output is correct
42 Correct 60 ms 3004 KB Output is correct
43 Correct 67 ms 3004 KB Output is correct
44 Correct 76 ms 3004 KB Output is correct
45 Correct 66 ms 3004 KB Output is correct
46 Correct 53 ms 3004 KB Output is correct
47 Correct 55 ms 3004 KB Output is correct
48 Correct 52 ms 3004 KB Output is correct
49 Correct 60 ms 3004 KB Output is correct
50 Correct 55 ms 3004 KB Output is correct
51 Correct 50 ms 3004 KB Output is correct
52 Correct 44 ms 3004 KB Output is correct
53 Correct 11 ms 3004 KB Output is correct
54 Correct 61 ms 3004 KB Output is correct
55 Correct 61 ms 3004 KB Output is correct
56 Correct 56 ms 3004 KB Output is correct
57 Correct 72 ms 3004 KB Output is correct
58 Correct 56 ms 3004 KB Output is correct
59 Correct 52 ms 3004 KB Output is correct
60 Correct 46 ms 3004 KB Output is correct
61 Correct 10 ms 3004 KB Output is correct
62 Correct 12 ms 3004 KB Output is correct
63 Correct 13 ms 3004 KB Output is correct
64 Correct 14 ms 3004 KB Output is correct
65 Correct 5 ms 3004 KB Output is correct
66 Correct 12 ms 3004 KB Output is correct
67 Correct 14 ms 3004 KB Output is correct
68 Correct 11 ms 3004 KB Output is correct
69 Correct 10 ms 3004 KB Output is correct
70 Correct 10 ms 3004 KB Output is correct
71 Correct 55 ms 3004 KB Output is correct
72 Correct 10 ms 3004 KB Output is correct
73 Correct 43 ms 3004 KB Output is correct
74 Correct 66 ms 3004 KB Output is correct
75 Correct 10 ms 3004 KB Output is correct
76 Correct 46 ms 3004 KB Output is correct
77 Partially correct 30 ms 3004 KB Partially correct - number of queries: 5025
78 Correct 15 ms 3004 KB Output is correct
79 Correct 38 ms 3004 KB Output is correct
80 Correct 46 ms 3004 KB Output is correct
81 Correct 71 ms 3004 KB Output is correct
82 Correct 54 ms 3004 KB Output is correct
83 Correct 12 ms 3004 KB Output is correct
84 Correct 38 ms 3004 KB Output is correct
85 Correct 58 ms 3004 KB Output is correct
86 Runtime error 9 ms 5620 KB Execution killed with signal 11 (could be triggered by violating memory limits)
87 Halted 0 ms 0 KB -