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Submission #67675

# Submission time Handle Problem Language Result Execution time Memory
67675 2018-08-15T08:31:23 Z zscoder The Big Prize (IOI17_prize) C++17
94.24 / 100
 86 ms 3124 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))+10; cr=int(sqrt(cr));
		}
		C=min(C,int(vec.size()));
		newmax=0;
		for(int i=0;i<C;i++) 
		{
			//cerr<<"QUERY : "<<query(vec[i]).fi<<' '<<query(vec[i]).se<<'\n';
			newmax=max(newmax,query(vec[i]).fi+query(vec[i]).se);
		}
		//cerr<<"NEWMAX : "<<newmax<<'\n';
		solve(0,int(vec.size())-1);
		//cerr<<"TOTAL NUMBER OF QUERIES : "<<totalquery<<'\n';
		vec=global; sort(vec.begin(),vec.end()); vec.erase(unique(vec.begin(),vec.end()),vec.end());
		/*
		for(int x:vec)
		{
			cerr<<x<<' ';
		}
		cerr<<'\n';
		*/
	}
	return vec[0];
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 2804 KB Output is correct
2 Correct 16 ms 2856 KB Output is correct
3 Correct 12 ms 2856 KB Output is correct
4 Correct 10 ms 2932 KB Output is correct
5 Correct 12 ms 2940 KB Output is correct
6 Correct 13 ms 2940 KB Output is correct
7 Correct 14 ms 3036 KB Output is correct
8 Correct 14 ms 3036 KB Output is correct
9 Correct 11 ms 3036 KB Output is correct
10 Correct 13 ms 3036 KB Output is correct

Subtask #2
74.24 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 3036 KB Output is correct
2 Correct 9 ms 3036 KB Output is correct
3 Correct 11 ms 3036 KB Output is correct
4 Correct 15 ms 3036 KB Output is correct
5 Correct 8 ms 3036 KB Output is correct
6 Correct 16 ms 3044 KB Output is correct
7 Correct 10 ms 3044 KB Output is correct
8 Correct 12 ms 3044 KB Output is correct
9 Correct 12 ms 3044 KB Output is correct
10 Correct 13 ms 3044 KB Output is correct
11 Correct 9 ms 3044 KB Output is correct
12 Correct 18 ms 3044 KB Output is correct
13 Correct 19 ms 3044 KB Output is correct
14 Correct 15 ms 3044 KB Output is correct
15 Partially correct 69 ms 3044 KB Partially correct - number of queries: 5214
16 Partially correct 28 ms 3044 KB Partially correct - number of queries: 5476
17 Partially correct 80 ms 3044 KB Partially correct - number of queries: 5436
18 Partially correct 71 ms 3124 KB Partially correct - number of queries: 5426
19 Partially correct 46 ms 3124 KB Partially correct - number of queries: 5137
20 Correct 35 ms 3124 KB Output is correct
21 Partially correct 26 ms 3124 KB Partially correct - number of queries: 5442
22 Correct 68 ms 3124 KB Output is correct
23 Correct 14 ms 3124 KB Output is correct
24 Correct 17 ms 3124 KB Output is correct
25 Partially correct 61 ms 3124 KB Partially correct - number of queries: 5073
26 Partially correct 53 ms 3124 KB Partially correct - number of queries: 5046
27 Correct 13 ms 3124 KB Output is correct
28 Correct 48 ms 3124 KB Output is correct
29 Correct 36 ms 3124 KB Output is correct
30 Partially correct 50 ms 3124 KB Partially correct - number of queries: 5400
31 Partially correct 62 ms 3124 KB Partially correct - number of queries: 5400
32 Correct 20 ms 3124 KB Output is correct
33 Correct 3 ms 3124 KB Output is correct
34 Partially correct 34 ms 3124 KB Partially correct - number of queries: 5438
35 Correct 16 ms 3124 KB Output is correct
36 Partially correct 57 ms 3124 KB Partially correct - number of queries: 5392
37 Correct 22 ms 3124 KB Output is correct
38 Correct 14 ms 3124 KB Output is correct
39 Partially correct 60 ms 3124 KB Partially correct - number of queries: 5397
40 Correct 23 ms 3124 KB Output is correct
41 Partially correct 50 ms 3124 KB Partially correct - number of queries: 5445
42 Partially correct 50 ms 3124 KB Partially correct - number of queries: 5445
43 Partially correct 31 ms 3124 KB Partially correct - number of queries: 5324
44 Partially correct 86 ms 3124 KB Partially correct - number of queries: 5451
45 Partially correct 26 ms 3124 KB Partially correct - number of queries: 5069
46 Partially correct 68 ms 3124 KB Partially correct - number of queries: 5428
47 Partially correct 63 ms 3124 KB Partially correct - number of queries: 5084
48 Partially correct 50 ms 3124 KB Partially correct - number of queries: 5414
49 Partially correct 68 ms 3124 KB Partially correct - number of queries: 5419
50 Partially correct 39 ms 3124 KB Partially correct - number of queries: 5448
51 Partially correct 52 ms 3124 KB Partially correct - number of queries: 5456
52 Partially correct 62 ms 3124 KB Partially correct - number of queries: 5472
53 Correct 11 ms 3124 KB Output is correct
54 Partially correct 55 ms 3124 KB Partially correct - number of queries: 5417
55 Partially correct 59 ms 3124 KB Partially correct - number of queries: 5449
56 Partially correct 57 ms 3124 KB Partially correct - number of queries: 5418
57 Partially correct 51 ms 3124 KB Partially correct - number of queries: 5429
58 Partially correct 59 ms 3124 KB Partially correct - number of queries: 5424
59 Partially correct 78 ms 3124 KB Partially correct - number of queries: 5431
60 Partially correct 80 ms 3124 KB Partially correct - number of queries: 5399
61 Correct 15 ms 3124 KB Output is correct
62 Correct 12 ms 3124 KB Output is correct
63 Correct 11 ms 3124 KB Output is correct
64 Correct 11 ms 3124 KB Output is correct
65 Correct 13 ms 3124 KB Output is correct
66 Correct 19 ms 3124 KB Output is correct
67 Correct 20 ms 3124 KB Output is correct
68 Correct 9 ms 3124 KB Output is correct
69 Correct 20 ms 3124 KB Output is correct
70 Correct 17 ms 3124 KB Output is correct
71 Partially correct 26 ms 3124 KB Partially correct - number of queries: 5284
72 Correct 20 ms 3124 KB Output is correct
73 Partially correct 46 ms 3124 KB Partially correct - number of queries: 5221
74 Partially correct 54 ms 3124 KB Partially correct - number of queries: 5248
75 Correct 18 ms 3124 KB Output is correct
76 Correct 58 ms 3124 KB Output is correct
77 Partially correct 73 ms 3124 KB Partially correct - number of queries: 5520
78 Correct 17 ms 3124 KB Output is correct
79 Correct 40 ms 3124 KB Output is correct
80 Partially correct 80 ms 3124 KB Partially correct - number of queries: 5576
81 Partially correct 33 ms 3124 KB Partially correct - number of queries: 5507
82 Partially correct 34 ms 3124 KB Partially correct - number of queries: 5454
83 Correct 12 ms 3124 KB Output is correct
84 Correct 61 ms 3124 KB Output is correct
85 Partially correct 68 ms 3124 KB Partially correct - number of queries: 5478
86 Correct 15 ms 3124 KB Output is correct
87 Correct 13 ms 3124 KB Output is correct
88 Correct 15 ms 3124 KB Output is correct
89 Correct 11 ms 3124 KB Output is correct
90 Correct 12 ms 3124 KB Output is correct
91 Correct 12 ms 3124 KB Output is correct
92 Correct 8 ms 3124 KB Output is correct
93 Correct 11 ms 3124 KB Output is correct
94 Correct 12 ms 3124 KB Output is correct
95 Correct 21 ms 3124 KB Output is correct
96 Correct 15 ms 3124 KB Output is correct
97 Correct 13 ms 3124 KB Output is correct