Submission #1063483

# Submission time Handle Problem Language Result Execution time Memory
1063483 2024-08-17T19:16:53 Z fv3 The Big Prize (IOI17_prize) C++14
90 / 100
117 ms 3832 KB
#include "prize.h"
#include <bits/stdc++.h>

using namespace std;

vector<int> st;
int nt = 1;

int get_range(int l, int r, int k, int x, int y)
{
	if (x > r || y < l) return 0;
	if (x >= l && y <= r) return st[k];
	int c = (x + y) / 2;
	return get_range(l, r, k*2, x, c) + get_range(l, r, k*2|1, c+1, y);
}

void add(int index)
{
	st[nt + index] = 1;
	for (int i = (nt + index) / 2; i >= 1; i /= 2)
		st[i] = st[i*2] + st[i*2|1];
}

vector<int> parent;
int find(int index)
{
	if (!parent[index]) return index;
	return parent[index] = find(parent[index]);
}

int find_best(int n)
{
	parent = vector<int>(n);

	while (nt < n) nt <<= 1;
	st = vector<int>(2 * nt);

	stack<int> stck;

	int mx_cnt = 1;
	while (1)
	{
		int l = 0, r = n - 1;
		while (1)
		{
			cerr << "[" << l << ", " << r << "]\n";
			int c = (l + r) / 2;
			int index = find(c);

			if (index == n)
			{
				r = c - 1;
				continue;
			}

			auto val = ask(index);
			int cnt = val[0] + val[1]; 
			if (cnt == 0)
				return index;

			if (cnt > mx_cnt)
			{
				mx_cnt = cnt;
				while (!stck.empty())
				{
					add(stck.top());
					stck.pop();
				}
			}

			if (cnt < mx_cnt)
			{
				parent[index] = index + 1;
				add(index);
				break;
			}

			if (val[0] == get_range(0, index, 1, 0, nt-1))
				l = c + 1;
			else
				r = c - 1;
			stck.push(index);
		}

	}
	return 0;
}
# Verdict Execution time Memory Grader output
1 Correct 3 ms 3248 KB Output is correct
2 Correct 1 ms 3248 KB Output is correct
3 Correct 2 ms 3240 KB Output is correct
4 Correct 2 ms 3160 KB Output is correct
5 Correct 2 ms 3160 KB Output is correct
6 Correct 2 ms 3160 KB Output is correct
7 Correct 2 ms 3160 KB Output is correct
8 Correct 2 ms 3160 KB Output is correct
9 Correct 1 ms 3160 KB Output is correct
10 Correct 2 ms 3160 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 3160 KB Output is correct
2 Correct 2 ms 3160 KB Output is correct
3 Correct 1 ms 3160 KB Output is correct
4 Correct 2 ms 3160 KB Output is correct
5 Correct 3 ms 3160 KB Output is correct
6 Correct 1 ms 3160 KB Output is correct
7 Correct 2 ms 3160 KB Output is correct
8 Correct 2 ms 3160 KB Output is correct
9 Correct 1 ms 3160 KB Output is correct
10 Correct 2 ms 3160 KB Output is correct
11 Correct 4 ms 3160 KB Output is correct
12 Correct 2 ms 3160 KB Output is correct
13 Correct 7 ms 3296 KB Output is correct
14 Correct 3 ms 600 KB Output is correct
15 Correct 18 ms 3244 KB Output is correct
16 Partially correct 72 ms 3304 KB Partially correct - number of queries: 6553
17 Correct 2 ms 3160 KB Output is correct
18 Partially correct 105 ms 3832 KB Partially correct - number of queries: 7888
19 Correct 1 ms 3160 KB Output is correct
20 Correct 27 ms 1888 KB Output is correct
21 Correct 30 ms 3308 KB Output is correct
22 Correct 7 ms 3160 KB Output is correct
23 Correct 1 ms 3160 KB Output is correct
24 Correct 2 ms 3160 KB Output is correct
25 Correct 51 ms 3416 KB Output is correct
26 Correct 50 ms 3664 KB Output is correct
27 Correct 2 ms 3160 KB Output is correct
28 Partially correct 97 ms 3524 KB Partially correct - number of queries: 7378
29 Partially correct 59 ms 3548 KB Partially correct - number of queries: 5615
30 Partially correct 104 ms 3588 KB Partially correct - number of queries: 7827
31 Correct 2 ms 3160 KB Output is correct
32 Correct 6 ms 3292 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 39 ms 3528 KB Output is correct
35 Correct 3 ms 3160 KB Output is correct
36 Correct 18 ms 3160 KB Output is correct
37 Correct 3 ms 3160 KB Output is correct
38 Correct 1 ms 3160 KB Output is correct
39 Correct 35 ms 3408 KB Output is correct
40 Partially correct 78 ms 3408 KB Partially correct - number of queries: 6696
41 Correct 47 ms 3572 KB Output is correct
42 Correct 50 ms 3816 KB Output is correct
43 Correct 44 ms 3304 KB Output is correct
44 Correct 31 ms 3308 KB Output is correct
45 Correct 28 ms 3416 KB Output is correct
46 Correct 2 ms 3160 KB Output is correct
47 Correct 42 ms 3404 KB Output is correct
48 Partially correct 60 ms 3608 KB Partially correct - number of queries: 5615
49 Correct 7 ms 3160 KB Output is correct
50 Partially correct 88 ms 3412 KB Partially correct - number of queries: 7884
51 Correct 35 ms 3412 KB Output is correct
52 Correct 2 ms 3160 KB Output is correct
53 Correct 3 ms 3160 KB Output is correct
54 Correct 34 ms 3576 KB Output is correct
55 Correct 2 ms 3160 KB Output is correct
56 Partially correct 97 ms 3408 KB Partially correct - number of queries: 7919
57 Partially correct 70 ms 3304 KB Partially correct - number of queries: 5525
58 Partially correct 79 ms 3416 KB Partially correct - number of queries: 5641
59 Correct 57 ms 3416 KB Output is correct
60 Correct 62 ms 3316 KB Output is correct
61 Correct 3 ms 3160 KB Output is correct
62 Correct 2 ms 3160 KB Output is correct
63 Correct 3 ms 3160 KB Output is correct
64 Correct 3 ms 3160 KB Output is correct
65 Correct 6 ms 3160 KB Output is correct
66 Correct 36 ms 3324 KB Output is correct
67 Correct 54 ms 3572 KB Output is correct
68 Correct 7 ms 3160 KB Output is correct
69 Correct 43 ms 3408 KB Output is correct
70 Correct 42 ms 3544 KB Output is correct
71 Partially correct 101 ms 3544 KB Partially correct - number of queries: 8496
72 Correct 7 ms 3160 KB Output is correct
73 Partially correct 99 ms 3308 KB Partially correct - number of queries: 8370
74 Partially correct 96 ms 3316 KB Partially correct - number of queries: 8424
75 Correct 3 ms 3160 KB Output is correct
76 Partially correct 78 ms 3416 KB Partially correct - number of queries: 7200
77 Partially correct 94 ms 3304 KB Partially correct - number of queries: 7936
78 Correct 7 ms 3160 KB Output is correct
79 Correct 37 ms 3320 KB Output is correct
80 Partially correct 117 ms 3408 KB Partially correct - number of queries: 7954
81 Partially correct 99 ms 3572 KB Partially correct - number of queries: 7937
82 Partially correct 93 ms 3316 KB Partially correct - number of queries: 7828
83 Correct 3 ms 3160 KB Output is correct
84 Partially correct 63 ms 3340 KB Partially correct - number of queries: 6424
85 Partially correct 115 ms 3664 KB Partially correct - number of queries: 7947
86 Correct 27 ms 3160 KB Output is correct
87 Correct 2 ms 3160 KB Output is correct
88 Correct 22 ms 3160 KB Output is correct
89 Correct 23 ms 3160 KB Output is correct
90 Correct 2 ms 3160 KB Output is correct
91 Correct 12 ms 3160 KB Output is correct
92 Correct 12 ms 3160 KB Output is correct
93 Correct 5 ms 3160 KB Output is correct
94 Correct 6 ms 3292 KB Output is correct
95 Correct 5 ms 3296 KB Output is correct
96 Correct 5 ms 3160 KB Output is correct
97 Correct 2 ms 3160 KB Output is correct