Submission #52155

# Submission time Handle Problem Language Result Execution time Memory
52155 2018-06-24T11:06:39 Z 김세빈(#1331) The Big Prize (IOI17_prize) C++11
96.92 / 100
91 ms 7352 KB
#include "prize.h"

#include <bits/stdc++.h>

using namespace std;

bool chk[202020];
vector <int> M[202020];

vector <int> myask(int idx)
{
	if(chk[idx]) return M[idx];
	chk[idx] = 1;
	return M[idx] = ask(idx);
}

void find(int m, vector <int>& ret, vector <int>& cands, int s, int e, int l, int r)
{
	if(s > e || l > r) return;
	
	int mid = (l+r) >> 1;
	int i,j;
	vector <int> res = myask(cands[mid]);
	
	if(res[0] + res[1] == m){
		find(m, ret, cands, s, res[0] - 1, l, mid-1);
		find(m, ret, cands, res[0], e, mid+1, r);
	}
	else{
		for(i=mid+1;i<=r;i++){
			res = myask(cands[i]);
			if(res[0] + res[1] == m) break;
		}
		if(i <= r){
			for(j=mid;j<i;j++){
				ret[res[0] - (i-j)] = cands[j];
			}
			find(m, ret, cands, s, res[0] - (i-mid) - 1, l, mid-1); 
			find(m, ret, cands, res[0], e, i+1, r);
		}
		
		else{
			for(i=mid-1;i>=l;i--){
				res = myask(cands[i]);
				if(res[0] + res[1] == m) break;
			}
			for(j=r;j>i;j--) ret[e - (r-j)] = cands[j];
			find(m, ret, cands, s, e - (r-i), l, i-1);
		}
	}
}

int run(vector <int> cands)
{
	if(cands.size() == 1) return cands[0];
	
	int i, k = min((int)cands.size(), 550);
	int m = 0;
	vector <int> res;
	
	for(i=0;i<k;i++){
		res = myask(cands[i]);
		m = max(m, res[0] + res[1]);
	}
	
	vector <int> ret(m);
	
	find(m, ret, cands, 0, m-1, 0, cands.size()-1);
	
	for(auto t: ret){
		res = myask(t);
		if(res[0] + res[1] == 0) return t;
	}
	
	return -1;
}

int find_best(int n)
{
	vector <int> V;
	
	int i;
	
	for(i=0;i<n;i++){
		V.push_back(i);
	}
	
	return run(V);
}
# Verdict Execution time Memory Grader output
1 Correct 16 ms 6760 KB Output is correct
2 Correct 14 ms 6820 KB Output is correct
3 Correct 11 ms 6900 KB Output is correct
4 Correct 12 ms 6976 KB Output is correct
5 Correct 14 ms 6996 KB Output is correct
6 Correct 11 ms 6996 KB Output is correct
7 Correct 16 ms 6996 KB Output is correct
8 Correct 12 ms 6996 KB Output is correct
9 Correct 10 ms 6996 KB Output is correct
10 Correct 12 ms 6996 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 11 ms 6996 KB Output is correct
2 Correct 13 ms 6996 KB Output is correct
3 Correct 11 ms 6996 KB Output is correct
4 Correct 12 ms 6996 KB Output is correct
5 Correct 10 ms 7024 KB Output is correct
6 Correct 11 ms 7024 KB Output is correct
7 Correct 16 ms 7024 KB Output is correct
8 Correct 12 ms 7024 KB Output is correct
9 Correct 10 ms 7024 KB Output is correct
10 Correct 11 ms 7024 KB Output is correct
11 Correct 17 ms 7212 KB Output is correct
12 Correct 15 ms 7216 KB Output is correct
13 Correct 17 ms 7216 KB Output is correct
14 Correct 15 ms 7216 KB Output is correct
15 Correct 49 ms 7216 KB Output is correct
16 Partially correct 54 ms 7216 KB Partially correct - number of queries: 5031
17 Correct 56 ms 7216 KB Output is correct
18 Partially correct 44 ms 7216 KB Partially correct - number of queries: 5011
19 Correct 44 ms 7216 KB Output is correct
20 Correct 43 ms 7216 KB Output is correct
21 Correct 40 ms 7352 KB Output is correct
22 Correct 40 ms 7352 KB Output is correct
23 Correct 12 ms 7352 KB Output is correct
24 Correct 15 ms 7352 KB Output is correct
25 Correct 51 ms 7352 KB Output is correct
26 Correct 48 ms 7352 KB Output is correct
27 Correct 13 ms 7352 KB Output is correct
28 Correct 50 ms 7352 KB Output is correct
29 Correct 41 ms 7352 KB Output is correct
30 Correct 47 ms 7352 KB Output is correct
31 Correct 70 ms 7352 KB Output is correct
32 Correct 22 ms 7352 KB Output is correct
33 Correct 6 ms 7352 KB Output is correct
34 Partially correct 46 ms 7352 KB Partially correct - number of queries: 5029
35 Correct 12 ms 7352 KB Output is correct
36 Correct 58 ms 7352 KB Output is correct
37 Correct 15 ms 7352 KB Output is correct
38 Correct 13 ms 7352 KB Output is correct
39 Correct 50 ms 7352 KB Output is correct
40 Correct 38 ms 7352 KB Output is correct
41 Correct 53 ms 7352 KB Output is correct
42 Correct 48 ms 7352 KB Output is correct
43 Correct 29 ms 7352 KB Output is correct
44 Partially correct 51 ms 7352 KB Partially correct - number of queries: 5022
45 Correct 52 ms 7352 KB Output is correct
46 Partially correct 61 ms 7352 KB Partially correct - number of queries: 5007
47 Correct 48 ms 7352 KB Output is correct
48 Correct 48 ms 7352 KB Output is correct
49 Correct 44 ms 7352 KB Output is correct
50 Partially correct 45 ms 7352 KB Partially correct - number of queries: 5005
51 Correct 46 ms 7352 KB Output is correct
52 Partially correct 34 ms 7352 KB Partially correct - number of queries: 5009
53 Correct 13 ms 7352 KB Output is correct
54 Correct 48 ms 7352 KB Output is correct
55 Partially correct 52 ms 7352 KB Partially correct - number of queries: 5006
56 Partially correct 45 ms 7352 KB Partially correct - number of queries: 5016
57 Correct 47 ms 7352 KB Output is correct
58 Correct 50 ms 7352 KB Output is correct
59 Correct 45 ms 7352 KB Output is correct
60 Correct 91 ms 7352 KB Output is correct
61 Correct 16 ms 7352 KB Output is correct
62 Correct 15 ms 7352 KB Output is correct
63 Correct 15 ms 7352 KB Output is correct
64 Correct 13 ms 7352 KB Output is correct
65 Correct 12 ms 7352 KB Output is correct
66 Correct 17 ms 7352 KB Output is correct
67 Correct 19 ms 7352 KB Output is correct
68 Correct 17 ms 7352 KB Output is correct
69 Correct 20 ms 7352 KB Output is correct
70 Correct 12 ms 7352 KB Output is correct
71 Partially correct 59 ms 7352 KB Partially correct - number of queries: 5308
72 Correct 17 ms 7352 KB Output is correct
73 Partially correct 45 ms 7352 KB Partially correct - number of queries: 5245
74 Partially correct 42 ms 7352 KB Partially correct - number of queries: 5272
75 Correct 12 ms 7352 KB Output is correct
76 Correct 29 ms 7352 KB Output is correct
77 Partially correct 45 ms 7352 KB Partially correct - number of queries: 5025
78 Correct 14 ms 7352 KB Output is correct
79 Correct 31 ms 7352 KB Output is correct
80 Partially correct 49 ms 7352 KB Partially correct - number of queries: 5031
81 Partially correct 45 ms 7352 KB Partially correct - number of queries: 5014
82 Correct 42 ms 7352 KB Output is correct
83 Correct 13 ms 7352 KB Output is correct
84 Correct 40 ms 7352 KB Output is correct
85 Correct 43 ms 7352 KB Output is correct
86 Correct 18 ms 7352 KB Output is correct
87 Correct 10 ms 7352 KB Output is correct
88 Correct 11 ms 7352 KB Output is correct
89 Correct 13 ms 7352 KB Output is correct
90 Correct 12 ms 7352 KB Output is correct
91 Correct 12 ms 7352 KB Output is correct
92 Correct 11 ms 7352 KB Output is correct
93 Correct 13 ms 7352 KB Output is correct
94 Correct 13 ms 7352 KB Output is correct
95 Correct 15 ms 7352 KB Output is correct
96 Correct 13 ms 7352 KB Output is correct
97 Correct 13 ms 7352 KB Output is correct