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Submission #767697

# Submission time Handle Problem Language Result Execution time Memory
767697 2023-06-27T04:52:58 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 = 473;
 
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 5 ms 292 KB Output is correct
2 Correct 4 ms 292 KB Output is correct
3 Correct 3 ms 208 KB Output is correct
4 Correct 4 ms 288 KB Output is correct
5 Correct 4 ms 208 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 288 KB Output is correct
9 Correct 3 ms 292 KB Output is correct
10 Correct 4 ms 208 KB Output is correct

Subtask #2
70.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 292 KB Output is correct
2 Correct 5 ms 292 KB Output is correct
3 Correct 4 ms 288 KB Output is correct
4 Correct 4 ms 208 KB Output is correct
5 Correct 2 ms 208 KB Output is correct
6 Correct 1 ms 296 KB Output is correct
7 Correct 4 ms 208 KB Output is correct
8 Correct 2 ms 288 KB Output is correct
9 Correct 4 ms 208 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 8 ms 208 KB Output is correct
12 Correct 3 ms 208 KB Output is correct
13 Correct 7 ms 292 KB Output is correct
14 Correct 7 ms 208 KB Output is correct
15 Correct 6 ms 288 KB Output is correct
16 Partially correct 45 ms 292 KB Partially correct - number of queries: 7784
17 Correct 2 ms 208 KB Output is correct
18 Partially correct 80 ms 292 KB Partially correct - number of queries: 9059
19 Correct 4 ms 208 KB Output is correct
20 Correct 23 ms 208 KB Output is correct
21 Correct 34 ms 208 KB Output is correct
22 Correct 4 ms 288 KB Output is correct
23 Correct 2 ms 208 KB Output is correct
24 Correct 4 ms 292 KB Output is correct
25 Partially correct 21 ms 292 KB Partially correct - number of queries: 5305
26 Partially correct 46 ms 208 KB Partially correct - number of queries: 5242
27 Correct 3 ms 208 KB Output is correct
28 Partially correct 56 ms 208 KB Partially correct - number of queries: 8621
29 Partially correct 53 ms 208 KB Partially correct - number of queries: 6654
30 Partially correct 77 ms 208 KB Partially correct - number of queries: 9004
31 Correct 3 ms 288 KB Output is correct
32 Correct 6 ms 292 KB Output is correct
33 Correct 0 ms 208 KB Output is correct
34 Correct 11 ms 284 KB Output is correct
35 Correct 6 ms 208 KB Output is correct
36 Correct 15 ms 296 KB Output is correct
37 Correct 2 ms 336 KB Output is correct
38 Correct 5 ms 292 KB Output is correct
39 Correct 30 ms 208 KB Output is correct
40 Partially correct 35 ms 292 KB Partially correct - number of queries: 7778
41 Partially correct 43 ms 208 KB Partially correct - number of queries: 5594
42 Partially correct 45 ms 208 KB Partially correct - number of queries: 5594
43 Partially correct 44 ms 208 KB Partially correct - number of queries: 5102
44 Correct 13 ms 288 KB Output is correct
45 Correct 28 ms 208 KB Output is correct
46 Correct 4 ms 208 KB Output is correct
47 Correct 40 ms 208 KB Output is correct
48 Partially correct 57 ms 208 KB Partially correct - number of queries: 6818
49 Correct 9 ms 296 KB Output is correct
50 Partially correct 59 ms 208 KB Partially correct - number of queries: 9050
51 Correct 29 ms 288 KB Output is correct
52 Correct 3 ms 208 KB Output is correct
53 Correct 3 ms 336 KB Output is correct
54 Correct 28 ms 288 KB Output is correct
55 Correct 3 ms 288 KB Output is correct
56 Partially correct 80 ms 208 KB Partially correct - number of queries: 9062
57 Partially correct 45 ms 208 KB Partially correct - number of queries: 6740
58 Partially correct 52 ms 208 KB Partially correct - number of queries: 6845
59 Partially correct 45 ms 296 KB Partially correct - number of queries: 5594
60 Partially correct 17 ms 284 KB Partially correct - number of queries: 5232
61 Correct 3 ms 208 KB Output is correct
62 Correct 3 ms 292 KB Output is correct
63 Correct 2 ms 336 KB Output is correct
64 Correct 4 ms 208 KB Output is correct
65 Correct 3 ms 288 KB Output is correct
66 Correct 4 ms 296 KB Output is correct
67 Correct 2 ms 272 KB Output is correct
68 Correct 2 ms 292 KB Output is correct
69 Correct 7 ms 208 KB Output is correct
70 Correct 2 ms 288 KB Output is correct
71 Partially correct 67 ms 208 KB Partially correct - number of queries: 9206
72 Correct 7 ms 208 KB Output is correct
73 Partially correct 54 ms 208 KB Partially correct - number of queries: 9092
74 Partially correct 45 ms 208 KB Partially correct - number of queries: 9134
75 Correct 5 ms 208 KB Output is correct
76 Partially correct 50 ms 208 KB Partially correct - number of queries: 7925
77 Partially correct 31 ms 288 KB Partially correct - number of queries: 9091
78 Correct 9 ms 208 KB Output is correct
79 Correct 15 ms 336 KB Output is correct
80 Partially correct 71 ms 292 KB Partially correct - number of queries: 9068
81 Partially correct 63 ms 208 KB Partially correct - number of queries: 9090
82 Partially correct 44 ms 292 KB Partially correct - number of queries: 9002
83 Correct 5 ms 208 KB Output is correct
84 Partially correct 25 ms 296 KB Partially correct - number of queries: 7479
85 Partially correct 43 ms 296 KB Partially correct - number of queries: 9055
86 Correct 5 ms 208 KB Output is correct
87 Correct 4 ms 208 KB Output is correct
88 Correct 5 ms 208 KB Output is correct
89 Correct 4 ms 208 KB Output is correct
90 Correct 4 ms 208 KB Output is correct
91 Correct 4 ms 208 KB Output is correct
92 Correct 2 ms 208 KB Output is correct
93 Correct 6 ms 208 KB Output is correct
94 Correct 9 ms 208 KB Output is correct
95 Correct 6 ms 208 KB Output is correct
96 Correct 8 ms 208 KB Output is correct
97 Correct 4 ms 208 KB Output is correct