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Submission #441824

# Submission time Handle Problem Language Result Execution time Memory
441824 2021-07-06T09:52:17 Z prvocislo The Big Prize (IOI17_prize) C++17
100 / 100
 65 ms 10688 KB 
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;

const int maxn = 2e5 + 5;
int ans[maxn];
set<int> typ[maxn];
int rek(int l, int r)
{
	if (r < l) return -1;
	int m = (l + r) >> 1;
	vector<int> v = ask(m);
	int sum = v[0] + v[1]; ans[m] = v[0];
	if (!sum) return m;
	auto it = typ[sum].insert(m).first;
	if (it == typ[sum].begin() || ans[*prev(it)] != ans[*it])
	{
		int val = rek(l, m-1);
		if (val != -1) return val;
	}
	if (next(it) == typ[sum].end() || ans[*next(it)] != ans[*it])
	{
		int val = rek(m+1, r);
		if (val != -1) return val;
	}
	return -1;
}
int find_best(int n) 
{
	return rek(0, n-1);
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9672 KB Output is correct
2 Correct 6 ms 9688 KB Output is correct
3 Correct 6 ms 9800 KB Output is correct
4 Correct 7 ms 9676 KB Output is correct
5 Correct 6 ms 9696 KB Output is correct
6 Correct 6 ms 9684 KB Output is correct
7 Correct 6 ms 9672 KB Output is correct
8 Correct 7 ms 9672 KB Output is correct
9 Correct 6 ms 9692 KB Output is correct
10 Correct 5 ms 9672 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9672 KB Output is correct
2 Correct 6 ms 9672 KB Output is correct
3 Correct 6 ms 9672 KB Output is correct
4 Correct 6 ms 9672 KB Output is correct
5 Correct 6 ms 9672 KB Output is correct
6 Correct 7 ms 9688 KB Output is correct
7 Correct 6 ms 9684 KB Output is correct
8 Correct 6 ms 9672 KB Output is correct
9 Correct 6 ms 9672 KB Output is correct
10 Correct 6 ms 9672 KB Output is correct
11 Correct 8 ms 9788 KB Output is correct
12 Correct 6 ms 9672 KB Output is correct
13 Correct 12 ms 10056 KB Output is correct
14 Correct 11 ms 9672 KB Output is correct
15 Correct 14 ms 9788 KB Output is correct
16 Correct 45 ms 10460 KB Output is correct
17 Correct 6 ms 9672 KB Output is correct
18 Correct 54 ms 10652 KB Output is correct
19 Correct 7 ms 9672 KB Output is correct
20 Correct 12 ms 9880 KB Output is correct
21 Correct 21 ms 9932 KB Output is correct
22 Correct 11 ms 9732 KB Output is correct
23 Correct 6 ms 9672 KB Output is correct
24 Correct 6 ms 9688 KB Output is correct
25 Correct 40 ms 10104 KB Output is correct
26 Correct 37 ms 10172 KB Output is correct
27 Correct 7 ms 9672 KB Output is correct
28 Correct 59 ms 10604 KB Output is correct
29 Correct 34 ms 10440 KB Output is correct
30 Correct 63 ms 10544 KB Output is correct
31 Correct 6 ms 9684 KB Output is correct
32 Correct 10 ms 9920 KB Output is correct
33 Correct 6 ms 9672 KB Output is correct
34 Correct 24 ms 9960 KB Output is correct
35 Correct 7 ms 9800 KB Output is correct
36 Correct 16 ms 9800 KB Output is correct
37 Correct 7 ms 9672 KB Output is correct
38 Correct 6 ms 9688 KB Output is correct
39 Correct 30 ms 10088 KB Output is correct
40 Correct 44 ms 10568 KB Output is correct
41 Correct 20 ms 10216 KB Output is correct
42 Correct 43 ms 10212 KB Output is correct
43 Correct 39 ms 10100 KB Output is correct
44 Correct 28 ms 9956 KB Output is correct
45 Correct 18 ms 9904 KB Output is correct
46 Correct 6 ms 9676 KB Output is correct
47 Correct 24 ms 10056 KB Output is correct
48 Correct 42 ms 10432 KB Output is correct
49 Correct 9 ms 9748 KB Output is correct
50 Correct 54 ms 10556 KB Output is correct
51 Correct 23 ms 10048 KB Output is correct
52 Correct 6 ms 9700 KB Output is correct
53 Correct 8 ms 9792 KB Output is correct
54 Correct 24 ms 10116 KB Output is correct
55 Correct 6 ms 9672 KB Output is correct
56 Correct 29 ms 10652 KB Output is correct
57 Correct 46 ms 10376 KB Output is correct
58 Correct 42 ms 10440 KB Output is correct
59 Correct 37 ms 10176 KB Output is correct
60 Correct 18 ms 10268 KB Output is correct
61 Correct 10 ms 9788 KB Output is correct
62 Correct 6 ms 9672 KB Output is correct
63 Correct 6 ms 9848 KB Output is correct
64 Correct 7 ms 9788 KB Output is correct
65 Correct 7 ms 9672 KB Output is correct
66 Correct 6 ms 9800 KB Output is correct
67 Correct 6 ms 9676 KB Output is correct
68 Correct 6 ms 9688 KB Output is correct
69 Correct 7 ms 9672 KB Output is correct
70 Correct 7 ms 9676 KB Output is correct
71 Correct 59 ms 10540 KB Output is correct
72 Correct 11 ms 10056 KB Output is correct
73 Correct 65 ms 10688 KB Output is correct
74 Correct 63 ms 10644 KB Output is correct
75 Correct 7 ms 9976 KB Output is correct
76 Correct 60 ms 10508 KB Output is correct
77 Correct 63 ms 10580 KB Output is correct
78 Correct 10 ms 10056 KB Output is correct
79 Correct 35 ms 10552 KB Output is correct
80 Correct 59 ms 10648 KB Output is correct
81 Correct 61 ms 10564 KB Output is correct
82 Correct 63 ms 10544 KB Output is correct
83 Correct 8 ms 9800 KB Output is correct
84 Correct 40 ms 10560 KB Output is correct
85 Correct 60 ms 10560 KB Output is correct
86 Correct 12 ms 10056 KB Output is correct
87 Correct 10 ms 9928 KB Output is correct
88 Correct 10 ms 10016 KB Output is correct
89 Correct 12 ms 10056 KB Output is correct
90 Correct 8 ms 9960 KB Output is correct
91 Correct 10 ms 9928 KB Output is correct
92 Correct 6 ms 9664 KB Output is correct
93 Correct 10 ms 9928 KB Output is correct
94 Correct 7 ms 9948 KB Output is correct
95 Correct 13 ms 9928 KB Output is correct
96 Correct 8 ms 9928 KB Output is correct
97 Correct 6 ms 9672 KB Output is correct