Submission #1056824

# Submission time Handle Problem Language Result Execution time Memory
1056824 2024-08-13T11:35:33 Z phoenix The Big Prize (IOI17_prize) C++17
91.72 / 100
40 ms 5736 KB
#include "prize.h"
#include <bits/stdc++.h>

using namespace std;

const int N = 200200;
const int B = 512;

vector<int> arr[N];

vector<int> ASK(int p) {
	if (arr[p].empty())
		arr[p] = ask(p);
	return arr[p];	
}

int sum(int i) {
	return ASK(i)[0] + ASK(i)[1];
}

int find_best(int n) {
	int val = sum(0);
	
	for (int i = 0; i < min(n, B); i++) {
		if (!sum(i)) return i;
		val = max(val, sum(i));
	}
	int cnt = 0;
	for (int i = 0; i < B; i++) 
		cnt += (sum(i) < val);
	
	for (int it = B; it < n; it += B) {
		int rb = min(it + B - 1, n - 1), k = 0;
		
		if (sum(rb) == val && arr[rb][0] == cnt) 
			continue;

		bool skip = false;
		while (rb >= it && sum(rb) < val) {
			if (!sum(rb)) return rb;
			if (sum(rb) == 1 && !arr[rb][0])
				skip = true;
			k++;
			rb--;
		}
		if (skip) continue;

		int i = it;
		while (i < rb && cnt < arr[rb][0]) {
			while (i < rb && sum(i) < val) {
				if (!sum(i))
					return i;
				cnt++;
				i++;
			}
			if (cnt == arr[rb][0]) break;
			int l = i, r = rb;
			while (r - l > 1) {
				int mid = (l + r) / 2;
				if (ASK(mid) == ASK(i)) 
					l = mid;
				else {
					if (!sum(mid))
						return mid;
					r = mid;
				}
			}
			i = r;
		}
		cnt += k;
	}
	return 0;
}
# Verdict Execution time Memory Grader output
1 Correct 3 ms 4952 KB Output is correct
2 Correct 4 ms 5156 KB Output is correct
3 Correct 4 ms 5136 KB Output is correct
4 Correct 3 ms 4952 KB Output is correct
5 Correct 4 ms 4952 KB Output is correct
6 Correct 1 ms 4952 KB Output is correct
7 Correct 3 ms 4952 KB Output is correct
8 Correct 4 ms 5464 KB Output is correct
9 Correct 4 ms 4952 KB Output is correct
10 Correct 3 ms 4952 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 4 ms 4952 KB Output is correct
2 Correct 4 ms 4952 KB Output is correct
3 Correct 5 ms 4952 KB Output is correct
4 Correct 4 ms 5208 KB Output is correct
5 Correct 4 ms 4952 KB Output is correct
6 Correct 1 ms 4952 KB Output is correct
7 Correct 5 ms 4960 KB Output is correct
8 Correct 4 ms 5144 KB Output is correct
9 Correct 3 ms 5128 KB Output is correct
10 Correct 4 ms 4952 KB Output is correct
11 Correct 4 ms 5208 KB Output is correct
12 Correct 2 ms 4952 KB Output is correct
13 Correct 5 ms 5384 KB Output is correct
14 Correct 4 ms 4952 KB Output is correct
15 Correct 5 ms 5148 KB Output is correct
16 Correct 26 ms 5732 KB Output is correct
17 Correct 3 ms 4952 KB Output is correct
18 Partially correct 27 ms 5404 KB Partially correct - number of queries: 5761
19 Correct 3 ms 4952 KB Output is correct
20 Correct 10 ms 4948 KB Output is correct
21 Correct 9 ms 5208 KB Output is correct
22 Correct 5 ms 4952 KB Output is correct
23 Correct 3 ms 5208 KB Output is correct
24 Correct 3 ms 4952 KB Output is correct
25 Correct 10 ms 5196 KB Output is correct
26 Correct 15 ms 5200 KB Output is correct
27 Correct 3 ms 4952 KB Output is correct
28 Partially correct 40 ms 5396 KB Partially correct - number of queries: 5177
29 Correct 15 ms 5208 KB Output is correct
30 Partially correct 25 ms 5400 KB Partially correct - number of queries: 5828
31 Correct 2 ms 4952 KB Output is correct
32 Correct 3 ms 4952 KB Output is correct
33 Correct 1 ms 4952 KB Output is correct
34 Correct 13 ms 5172 KB Output is correct
35 Correct 4 ms 4952 KB Output is correct
36 Correct 7 ms 5148 KB Output is correct
37 Correct 3 ms 4952 KB Output is correct
38 Correct 3 ms 4952 KB Output is correct
39 Correct 11 ms 5200 KB Output is correct
40 Partially correct 25 ms 5200 KB Partially correct - number of queries: 5106
41 Correct 14 ms 5208 KB Output is correct
42 Correct 11 ms 5208 KB Output is correct
43 Correct 14 ms 5724 KB Output is correct
44 Correct 13 ms 5204 KB Output is correct
45 Correct 7 ms 5164 KB Output is correct
46 Correct 2 ms 4952 KB Output is correct
47 Correct 13 ms 5212 KB Output is correct
48 Correct 20 ms 5404 KB Output is correct
49 Correct 3 ms 4952 KB Output is correct
50 Partially correct 29 ms 5180 KB Partially correct - number of queries: 5775
51 Correct 10 ms 5424 KB Output is correct
52 Correct 3 ms 4952 KB Output is correct
53 Correct 5 ms 4952 KB Output is correct
54 Correct 11 ms 5188 KB Output is correct
55 Correct 3 ms 4952 KB Output is correct
56 Partially correct 23 ms 5208 KB Partially correct - number of queries: 5780
57 Correct 18 ms 5464 KB Output is correct
58 Correct 17 ms 5184 KB Output is correct
59 Correct 9 ms 5208 KB Output is correct
60 Correct 18 ms 5424 KB Output is correct
61 Correct 6 ms 5148 KB Output is correct
62 Correct 3 ms 4952 KB Output is correct
63 Correct 4 ms 4952 KB Output is correct
64 Correct 4 ms 4952 KB Output is correct
65 Correct 5 ms 5156 KB Output is correct
66 Correct 5 ms 5404 KB Output is correct
67 Correct 7 ms 4952 KB Output is correct
68 Correct 3 ms 4952 KB Output is correct
69 Correct 7 ms 5396 KB Output is correct
70 Correct 5 ms 4952 KB Output is correct
71 Partially correct 19 ms 5208 KB Partially correct - number of queries: 5458
72 Correct 6 ms 4952 KB Output is correct
73 Partially correct 28 ms 5408 KB Partially correct - number of queries: 5402
74 Partially correct 25 ms 5440 KB Partially correct - number of queries: 5426
75 Correct 5 ms 4952 KB Output is correct
76 Correct 16 ms 5248 KB Output is correct
77 Partially correct 17 ms 5456 KB Partially correct - number of queries: 5691
78 Correct 6 ms 5168 KB Output is correct
79 Correct 17 ms 5476 KB Output is correct
80 Partially correct 22 ms 5736 KB Partially correct - number of queries: 5718
81 Partially correct 29 ms 5456 KB Partially correct - number of queries: 5686
82 Partially correct 37 ms 5456 KB Partially correct - number of queries: 5675
83 Correct 5 ms 4952 KB Output is correct
84 Correct 18 ms 5196 KB Output is correct
85 Partially correct 25 ms 5208 KB Partially correct - number of queries: 5672
86 Correct 4 ms 4952 KB Output is correct
87 Correct 5 ms 4952 KB Output is correct
88 Correct 3 ms 4952 KB Output is correct
89 Correct 4 ms 4952 KB Output is correct
90 Correct 5 ms 5400 KB Output is correct
91 Correct 4 ms 4952 KB Output is correct
92 Correct 4 ms 4952 KB Output is correct
93 Correct 5 ms 4952 KB Output is correct
94 Correct 5 ms 4952 KB Output is correct
95 Correct 5 ms 5144 KB Output is correct
96 Correct 16 ms 5688 KB Output is correct
97 Correct 5 ms 4948 KB Output is correct