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Submission #330487

# Submission time Handle Problem Language Result Execution time Memory
330487 2020-11-25T14:10:59 Z maximath_1 The Big Prize (IOI17_prize) C++11
100 / 100
 68 ms 10988 KB 
#include "prize.h"
#include <vector>
#include <set>
using namespace std;

set<int> s[200005];
int ans[200005];

int dnc(int cl, int cr){
	if(cl > cr) return -1;
	int md = (cl + cr) / 2;
	vector<int> gt = ask(md);
	ans[md] = gt[0];
	if(gt[0] + gt[1] == 0) return md;

	auto it = s[gt[0] + gt[1]].insert(md).first;
	if(it == s[gt[0] + gt[1]].begin() || ans[*prev(it)] != ans[md]){
		int rs = dnc(cl, md - 1);
		if(~rs) return rs;
	}
	if(it == --s[gt[0] + gt[1]].end() || ans[*next(it)] != ans[md]){
		int rs = dnc(md + 1, cr);
		if(~rs) return rs;
	}

	return -1;
}

int find_best(int n) {
	return dnc(0, n - 1);
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9708 KB Output is correct
2 Correct 8 ms 9708 KB Output is correct
3 Correct 7 ms 9708 KB Output is correct
4 Correct 7 ms 9904 KB Output is correct
5 Correct 8 ms 9844 KB Output is correct
6 Correct 8 ms 9768 KB Output is correct
7 Correct 10 ms 9708 KB Output is correct
8 Correct 7 ms 9708 KB Output is correct
9 Correct 7 ms 9708 KB Output is correct
10 Correct 8 ms 9708 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9708 KB Output is correct
2 Correct 7 ms 9708 KB Output is correct
3 Correct 7 ms 9708 KB Output is correct
4 Correct 8 ms 9708 KB Output is correct
5 Correct 8 ms 9708 KB Output is correct
6 Correct 7 ms 9708 KB Output is correct
7 Correct 8 ms 9708 KB Output is correct
8 Correct 7 ms 9708 KB Output is correct
9 Correct 7 ms 9708 KB Output is correct
10 Correct 7 ms 9708 KB Output is correct
11 Correct 9 ms 9964 KB Output is correct
12 Correct 8 ms 9708 KB Output is correct
13 Correct 12 ms 10220 KB Output is correct
14 Correct 9 ms 9708 KB Output is correct
15 Correct 13 ms 9836 KB Output is correct
16 Correct 46 ms 10604 KB Output is correct
17 Correct 7 ms 9844 KB Output is correct
18 Correct 46 ms 10732 KB Output is correct
19 Correct 7 ms 9844 KB Output is correct
20 Correct 16 ms 9964 KB Output is correct
21 Correct 30 ms 10092 KB Output is correct
22 Correct 11 ms 9836 KB Output is correct
23 Correct 7 ms 9708 KB Output is correct
24 Correct 8 ms 9708 KB Output is correct
25 Correct 26 ms 10476 KB Output is correct
26 Correct 30 ms 10220 KB Output is correct
27 Correct 9 ms 9836 KB Output is correct
28 Correct 44 ms 10604 KB Output is correct
29 Correct 39 ms 10476 KB Output is correct
30 Correct 50 ms 10732 KB Output is correct
31 Correct 7 ms 9708 KB Output is correct
32 Correct 9 ms 10048 KB Output is correct
33 Correct 7 ms 9708 KB Output is correct
34 Correct 16 ms 10088 KB Output is correct
35 Correct 8 ms 10020 KB Output is correct
36 Correct 17 ms 9964 KB Output is correct
37 Correct 8 ms 9836 KB Output is correct
38 Correct 8 ms 9844 KB Output is correct
39 Correct 25 ms 10220 KB Output is correct
40 Correct 47 ms 10732 KB Output is correct
41 Correct 30 ms 10348 KB Output is correct
42 Correct 30 ms 10348 KB Output is correct
43 Correct 36 ms 10220 KB Output is correct
44 Correct 24 ms 10096 KB Output is correct
45 Correct 19 ms 9964 KB Output is correct
46 Correct 8 ms 9708 KB Output is correct
47 Correct 27 ms 10092 KB Output is correct
48 Correct 43 ms 10604 KB Output is correct
49 Correct 10 ms 9836 KB Output is correct
50 Correct 53 ms 10732 KB Output is correct
51 Correct 27 ms 10092 KB Output is correct
52 Correct 7 ms 9708 KB Output is correct
53 Correct 8 ms 9964 KB Output is correct
54 Correct 26 ms 10092 KB Output is correct
55 Correct 7 ms 9708 KB Output is correct
56 Correct 49 ms 10732 KB Output is correct
57 Correct 37 ms 10476 KB Output is correct
58 Correct 40 ms 10476 KB Output is correct
59 Correct 34 ms 10348 KB Output is correct
60 Correct 38 ms 10220 KB Output is correct
61 Correct 9 ms 10092 KB Output is correct
62 Correct 7 ms 9708 KB Output is correct
63 Correct 8 ms 9964 KB Output is correct
64 Correct 9 ms 9836 KB Output is correct
65 Correct 7 ms 9708 KB Output is correct
66 Correct 7 ms 9896 KB Output is correct
67 Correct 7 ms 9836 KB Output is correct
68 Correct 7 ms 9708 KB Output is correct
69 Correct 8 ms 9708 KB Output is correct
70 Correct 7 ms 9708 KB Output is correct
71 Correct 55 ms 10732 KB Output is correct
72 Correct 10 ms 10256 KB Output is correct
73 Correct 51 ms 10732 KB Output is correct
74 Correct 51 ms 10732 KB Output is correct
75 Correct 9 ms 9964 KB Output is correct
76 Correct 55 ms 10732 KB Output is correct
77 Correct 45 ms 10988 KB Output is correct
78 Correct 13 ms 10220 KB Output is correct
79 Correct 34 ms 10732 KB Output is correct
80 Correct 64 ms 10732 KB Output is correct
81 Correct 66 ms 10732 KB Output is correct
82 Correct 68 ms 10752 KB Output is correct
83 Correct 9 ms 9964 KB Output is correct
84 Correct 58 ms 10732 KB Output is correct
85 Correct 65 ms 10732 KB Output is correct
86 Correct 15 ms 10092 KB Output is correct
87 Correct 10 ms 9964 KB Output is correct
88 Correct 13 ms 10092 KB Output is correct
89 Correct 13 ms 10092 KB Output is correct
90 Correct 9 ms 9836 KB Output is correct
91 Correct 12 ms 9964 KB Output is correct
92 Correct 7 ms 9708 KB Output is correct
93 Correct 10 ms 9964 KB Output is correct
94 Correct 10 ms 10040 KB Output is correct
95 Correct 10 ms 10092 KB Output is correct
96 Correct 10 ms 9964 KB Output is correct
97 Correct 7 ms 9708 KB Output is correct