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Submission #767699

# Submission time Handle Problem Language Result Execution time Memory
767699 2023-06-27T04:53:41 Z SanguineChameleon The Big Prize (IOI17_prize) C++17
90 / 100
 79 ms 336 KB 
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
 
const int lim = 470;
 
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 3 ms 208 KB Output is correct
2 Correct 5 ms 208 KB Output is correct
3 Correct 4 ms 292 KB Output is correct
4 Correct 2 ms 292 KB Output is correct
5 Correct 4 ms 296 KB Output is correct
6 Correct 0 ms 292 KB Output is correct
7 Correct 4 ms 208 KB Output is correct
8 Correct 2 ms 292 KB Output is correct
9 Correct 3 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 5 ms 288 KB Output is correct
2 Correct 4 ms 296 KB Output is correct
3 Correct 2 ms 292 KB Output is correct
4 Correct 3 ms 292 KB Output is correct
5 Correct 2 ms 292 KB Output is correct
6 Correct 0 ms 292 KB Output is correct
7 Correct 2 ms 296 KB Output is correct
8 Correct 2 ms 288 KB Output is correct
9 Correct 5 ms 208 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 3 ms 280 KB Output is correct
12 Correct 4 ms 288 KB Output is correct
13 Correct 6 ms 296 KB Output is correct
14 Correct 6 ms 208 KB Output is correct
15 Correct 18 ms 296 KB Output is correct
16 Partially correct 27 ms 288 KB Partially correct - number of queries: 7781
17 Correct 4 ms 208 KB Output is correct
18 Partially correct 73 ms 208 KB Partially correct - number of queries: 9056
19 Correct 2 ms 296 KB Output is correct
20 Correct 15 ms 292 KB Output is correct
21 Correct 21 ms 288 KB Output is correct
22 Correct 10 ms 308 KB Output is correct
23 Correct 2 ms 288 KB Output is correct
24 Correct 4 ms 208 KB Output is correct
25 Partially correct 35 ms 288 KB Partially correct - number of queries: 5302
26 Partially correct 44 ms 208 KB Partially correct - number of queries: 5239
27 Correct 6 ms 208 KB Output is correct
28 Partially correct 75 ms 208 KB Partially correct - number of queries: 8618
29 Partially correct 22 ms 288 KB Partially correct - number of queries: 6652
30 Partially correct 79 ms 208 KB Partially correct - number of queries: 9001
31 Correct 4 ms 272 KB Output is correct
32 Correct 3 ms 292 KB Output is correct
33 Correct 0 ms 208 KB Output is correct
34 Correct 29 ms 288 KB Output is correct
35 Correct 5 ms 208 KB Output is correct
36 Correct 16 ms 208 KB Output is correct
37 Correct 4 ms 288 KB Output is correct
38 Correct 2 ms 208 KB Output is correct
39 Correct 15 ms 336 KB Output is correct
40 Partially correct 46 ms 336 KB Partially correct - number of queries: 7775
41 Partially correct 46 ms 208 KB Partially correct - number of queries: 5591
42 Partially correct 41 ms 292 KB Partially correct - number of queries: 5591
43 Partially correct 41 ms 208 KB Partially correct - number of queries: 5099
44 Correct 25 ms 292 KB Output is correct
45 Correct 28 ms 208 KB Output is correct
46 Correct 2 ms 208 KB Output is correct
47 Correct 29 ms 288 KB Output is correct
48 Partially correct 54 ms 288 KB Partially correct - number of queries: 6815
49 Correct 4 ms 336 KB Output is correct
50 Partially correct 60 ms 288 KB Partially correct - number of queries: 9047
51 Correct 25 ms 208 KB Output is correct
52 Correct 4 ms 208 KB Output is correct
53 Correct 6 ms 208 KB Output is correct
54 Correct 33 ms 292 KB Output is correct
55 Correct 3 ms 208 KB Output is correct
56 Partially correct 44 ms 296 KB Partially correct - number of queries: 9059
57 Partially correct 43 ms 336 KB Partially correct - number of queries: 6737
58 Partially correct 35 ms 208 KB Partially correct - number of queries: 6842
59 Partially correct 37 ms 288 KB Partially correct - number of queries: 5591
60 Partially correct 42 ms 208 KB Partially correct - number of queries: 5229
61 Correct 5 ms 208 KB Output is correct
62 Correct 3 ms 208 KB Output is correct
63 Correct 3 ms 284 KB Output is correct
64 Correct 2 ms 336 KB Output is correct
65 Correct 2 ms 336 KB Output is correct
66 Correct 9 ms 292 KB Output is correct
67 Correct 4 ms 208 KB Output is correct
68 Correct 4 ms 296 KB Output is correct
69 Correct 6 ms 208 KB Output is correct
70 Correct 3 ms 288 KB Output is correct
71 Partially correct 73 ms 208 KB Partially correct - number of queries: 9198
72 Correct 10 ms 208 KB Output is correct
73 Partially correct 56 ms 208 KB Partially correct - number of queries: 9082
74 Partially correct 55 ms 208 KB Partially correct - number of queries: 9132
75 Correct 5 ms 208 KB Output is correct
76 Partially correct 66 ms 208 KB Partially correct - number of queries: 7931
77 Partially correct 52 ms 208 KB Partially correct - number of queries: 9085
78 Correct 6 ms 208 KB Output is correct
79 Correct 35 ms 208 KB Output is correct
80 Partially correct 70 ms 208 KB Partially correct - number of queries: 9054
81 Partially correct 59 ms 208 KB Partially correct - number of queries: 9108
82 Partially correct 60 ms 208 KB Partially correct - number of queries: 8976
83 Correct 5 ms 208 KB Output is correct
84 Partially correct 49 ms 208 KB Partially correct - number of queries: 7487
85 Partially correct 60 ms 208 KB Partially correct - number of queries: 9044
86 Correct 5 ms 208 KB Output is correct
87 Correct 2 ms 292 KB Output is correct
88 Correct 4 ms 288 KB Output is correct
89 Correct 4 ms 208 KB Output is correct
90 Correct 5 ms 208 KB Output is correct
91 Correct 5 ms 208 KB Output is correct
92 Correct 5 ms 292 KB Output is correct
93 Correct 5 ms 208 KB Output is correct
94 Correct 7 ms 208 KB Output is correct
95 Correct 8 ms 208 KB Output is correct
96 Correct 6 ms 208 KB Output is correct
97 Correct 4 ms 208 KB Output is correct