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Submission #767654

# Submission time Handle Problem Language Result Execution time Memory
767654 2023-06-27T02:11:46 Z SanguineChameleon The Big Prize (IOI17_prize) C++17
90 / 100
 80 ms 336 KB 
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;

const int lim = 500;

int find_best(int n) {
	if (n <= lim) {
		for (int i = 0; i < n; i++) {
			vector<int> res = ask(i);
			if (res[0] + res[1] == 0) {
				return i;
			}
		}
	}
	int mx = 0;
	for (int i = 0; i < lim; i++) {
		vector<int> res = ask(i);
		if (res[0] + res[1] == 0) {
			return i;
		}
		mx = max(mx, res[0] + res[1]);
	}
	int cur = lim;
	while (true) {
		vector<int> res1 = ask(cur);
		if (res1[0] + res1[1] == 0) {
			return cur;
		}
		if (res1[0] + res1[1] < mx) {
			cur++;
			continue;
		}
		int lt = cur + 1;
		int rt = n - 2;
		while (lt <= rt) {
			int mt = (lt + rt) / 2;
			vector<int> res2 = ask(mt);
			if (res2[0] + res2[1] == 0) {
				return mt;
			}
			if ((res2[0] + res2[1] == res1[0] + res1[1]) && (res2[0] == res1[0])) {
				cur = mt;
				lt = mt + 1;
			}
			else {
				rt = mt - 1;
			}
		}
		cur++;
	}
	return -1;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 292 KB Output is correct
2 Correct 2 ms 300 KB Output is correct
3 Correct 4 ms 208 KB Output is correct
4 Correct 2 ms 336 KB Output is correct
5 Correct 2 ms 336 KB Output is correct
6 Correct 0 ms 296 KB Output is correct
7 Correct 5 ms 284 KB Output is correct
8 Correct 4 ms 208 KB Output is correct
9 Correct 2 ms 336 KB Output is correct
10 Correct 5 ms 208 KB Output is correct

Subtask #2
70.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 336 KB Output is correct
2 Correct 4 ms 288 KB Output is correct
3 Correct 5 ms 208 KB Output is correct
4 Correct 5 ms 288 KB Output is correct
5 Correct 4 ms 208 KB Output is correct
6 Correct 0 ms 296 KB Output is correct
7 Correct 4 ms 292 KB Output is correct
8 Correct 3 ms 292 KB Output is correct
9 Correct 2 ms 292 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 3 ms 288 KB Output is correct
12 Correct 2 ms 292 KB Output is correct
13 Correct 7 ms 292 KB Output is correct
14 Correct 6 ms 208 KB Output is correct
15 Correct 6 ms 292 KB Output is correct
16 Partially correct 26 ms 292 KB Partially correct - number of queries: 7811
17 Correct 4 ms 296 KB Output is correct
18 Partially correct 30 ms 288 KB Partially correct - number of queries: 9086
19 Correct 3 ms 268 KB Output is correct
20 Correct 23 ms 208 KB Output is correct
21 Correct 13 ms 288 KB Output is correct
22 Correct 10 ms 212 KB Output is correct
23 Correct 5 ms 292 KB Output is correct
24 Correct 2 ms 296 KB Output is correct
25 Partially correct 38 ms 208 KB Partially correct - number of queries: 5332
26 Partially correct 32 ms 208 KB Partially correct - number of queries: 5268
27 Correct 6 ms 212 KB Output is correct
28 Partially correct 74 ms 292 KB Partially correct - number of queries: 8648
29 Partially correct 30 ms 288 KB Partially correct - number of queries: 6681
30 Partially correct 30 ms 296 KB Partially correct - number of queries: 9031
31 Correct 2 ms 296 KB Output is correct
32 Correct 7 ms 208 KB Output is correct
33 Correct 0 ms 208 KB Output is correct
34 Correct 12 ms 292 KB Output is correct
35 Correct 4 ms 208 KB Output is correct
36 Correct 17 ms 208 KB Output is correct
37 Correct 5 ms 208 KB Output is correct
38 Correct 2 ms 292 KB Output is correct
39 Correct 39 ms 296 KB Output is correct
40 Partially correct 64 ms 292 KB Partially correct - number of queries: 7785
41 Partially correct 29 ms 336 KB Partially correct - number of queries: 5621
42 Partially correct 32 ms 208 KB Partially correct - number of queries: 5621
43 Partially correct 44 ms 292 KB Partially correct - number of queries: 5129
44 Correct 32 ms 208 KB Output is correct
45 Correct 25 ms 208 KB Output is correct
46 Correct 2 ms 336 KB Output is correct
47 Correct 38 ms 208 KB Output is correct
48 Partially correct 39 ms 288 KB Partially correct - number of queries: 6845
49 Correct 7 ms 288 KB Output is correct
50 Partially correct 63 ms 208 KB Partially correct - number of queries: 9077
51 Correct 17 ms 288 KB Output is correct
52 Correct 6 ms 288 KB Output is correct
53 Correct 3 ms 320 KB Output is correct
54 Correct 14 ms 288 KB Output is correct
55 Correct 4 ms 208 KB Output is correct
56 Partially correct 54 ms 296 KB Partially correct - number of queries: 9089
57 Partially correct 59 ms 288 KB Partially correct - number of queries: 6767
58 Partially correct 54 ms 208 KB Partially correct - number of queries: 6872
59 Partially correct 33 ms 288 KB Partially correct - number of queries: 5621
60 Partially correct 36 ms 208 KB Partially correct - number of queries: 5259
61 Correct 5 ms 296 KB Output is correct
62 Correct 2 ms 288 KB Output is correct
63 Correct 6 ms 208 KB Output is correct
64 Correct 3 ms 208 KB Output is correct
65 Correct 2 ms 292 KB Output is correct
66 Correct 7 ms 288 KB Output is correct
67 Correct 3 ms 208 KB Output is correct
68 Correct 4 ms 208 KB Output is correct
69 Correct 7 ms 208 KB Output is correct
70 Correct 5 ms 208 KB Output is correct
71 Partially correct 71 ms 208 KB Partially correct - number of queries: 9228
72 Correct 10 ms 208 KB Output is correct
73 Partially correct 66 ms 208 KB Partially correct - number of queries: 9113
74 Partially correct 79 ms 208 KB Partially correct - number of queries: 9169
75 Correct 4 ms 208 KB Output is correct
76 Partially correct 58 ms 208 KB Partially correct - number of queries: 7963
77 Partially correct 70 ms 208 KB Partially correct - number of queries: 9116
78 Correct 11 ms 208 KB Output is correct
79 Correct 30 ms 208 KB Output is correct
80 Partially correct 70 ms 208 KB Partially correct - number of queries: 9128
81 Partially correct 56 ms 208 KB Partially correct - number of queries: 9090
82 Partially correct 73 ms 208 KB Partially correct - number of queries: 9020
83 Correct 5 ms 208 KB Output is correct
84 Partially correct 59 ms 208 KB Partially correct - number of queries: 7480
85 Partially correct 80 ms 208 KB Partially correct - number of queries: 9074
86 Correct 5 ms 208 KB Output is correct
87 Correct 3 ms 208 KB Output is correct
88 Correct 2 ms 336 KB Output is correct
89 Correct 5 ms 208 KB Output is correct
90 Correct 5 ms 208 KB Output is correct
91 Correct 3 ms 208 KB Output is correct
92 Correct 5 ms 208 KB Output is correct
93 Correct 8 ms 208 KB Output is correct
94 Correct 5 ms 208 KB Output is correct
95 Correct 8 ms 208 KB Output is correct
96 Correct 8 ms 208 KB Output is correct
97 Correct 4 ms 256 KB Output is correct