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Submission #1028756

# Submission time Handle Problem Language Result Execution time Memory
1028756 2024-07-20T08:15:16 Z parsadox2 The Big Prize (IOI17_prize) C++17
20 / 100
 589 ms 3972 KB 
#include "prize.h"
#include <bits/stdc++.h>

using namespace std;

const int N = 2e5 + 10;
int n , cnt[N];
bool marked[N] , dead[N];

int Sq(int val)
{
	for(int i = 1 ; i <= val ; i++)  if(i * i >= val)
		return i;
	return val;
}

int Solve()
{
	int Q = 0;
	int sq = Sq(n);
	int mx = 0;
	for(int i = 0 ; i < min(n , sq + 2) ; i++)
	{
		Q++;
		auto now = ask(i);
		mx = max(mx , now[0] + now[1]);
	}
	for(int asd = 0 ; asd < mx ; asd++)
	{
		vector <int> all;
		int tmp = 0;
		for(int i = 0 ; i < n ; i++) if(!dead[i])
		{
			if(marked[i])
				tmp++;
			else
			{
				cnt[i] = tmp;
				all.push_back(i);
			}
		}
		int low = -1 , high = all.size();
		while(high - low > 1)
		{
			Q++;
			int mid = (low + high) >> 1;
			int id = all[mid];
			auto now = ask(id);
			if(now[0] + now[1] != mx)
			{
				marked[id] = true;
				break;
			}
			now[0] -= cnt[id];
			if(now[0] != 0)
				high = mid;
			else
				low = mid;
			dead[id] = true;
		}
	}
	for(int i = 0 ; i < n ; i++)  if(marked[i])
	{
		Q++;
		auto now = ask(i);
		if(now[0] + now[1] == 0)
			return i;
	}
	for(int i = 0 ; i < n ; i++)  if(Q < 10000)
	{
		auto now = ask(i);
		if(now[0] + now[1] == 0)
			return i;
	}
	return -1;
}

int find_best(int nn) {
	n = nn;
	if(n == 1)
		return 0;
	return Solve();
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2000 KB Output is correct
2 Correct 3 ms 2000 KB Output is correct
3 Correct 4 ms 2012 KB Output is correct
4 Correct 4 ms 2000 KB Output is correct
5 Correct 3 ms 2000 KB Output is correct
6 Correct 5 ms 2000 KB Output is correct
7 Correct 3 ms 2096 KB Output is correct
8 Correct 5 ms 2000 KB Output is correct
9 Correct 5 ms 2000 KB Output is correct
10 Correct 4 ms 2000 KB Output is correct

Subtask #2
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2000 KB Output is correct
2 Correct 4 ms 2000 KB Output is correct
3 Correct 3 ms 2000 KB Output is correct
4 Correct 4 ms 2000 KB Output is correct
5 Correct 4 ms 2000 KB Output is correct
6 Correct 3 ms 2000 KB Output is correct
7 Correct 3 ms 2000 KB Output is correct
8 Correct 3 ms 2000 KB Output is correct
9 Correct 6 ms 2100 KB Output is correct
10 Correct 5 ms 2000 KB Output is correct
11 Correct 42 ms 3548 KB Output is correct
12 Correct 47 ms 3440 KB Output is correct
13 Correct 43 ms 3380 KB Output is correct
14 Correct 23 ms 756 KB Output is correct
15 Partially correct 565 ms 3448 KB Partially correct - number of queries: 7902
16 Partially correct 546 ms 3656 KB Partially correct - number of queries: 8695
17 Partially correct 552 ms 3592 KB Partially correct - number of queries: 8366
18 Partially correct 557 ms 3476 KB Partially correct - number of queries: 8750
19 Partially correct 497 ms 3480 KB Partially correct - number of queries: 7819
20 Partially correct 220 ms 2240 KB Partially correct - number of queries: 5529
21 Partially correct 544 ms 3608 KB Partially correct - number of queries: 8380
22 Partially correct 390 ms 3684 KB Partially correct - number of queries: 6205
23 Correct 18 ms 3188 KB Output is correct
24 Correct 40 ms 3316 KB Output is correct
25 Partially correct 542 ms 3804 KB Partially correct - number of queries: 8430
26 Partially correct 523 ms 3544 KB Partially correct - number of queries: 8541
27 Correct 11 ms 3096 KB Output is correct
28 Partially correct 555 ms 3592 KB Partially correct - number of queries: 8631
29 Partially correct 430 ms 3448 KB Partially correct - number of queries: 7069
30 Partially correct 557 ms 3704 KB Partially correct - number of queries: 8654
31 Partially correct 518 ms 3512 KB Partially correct - number of queries: 8164
32 Correct 48 ms 3408 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Partially correct 589 ms 3632 KB Partially correct - number of queries: 8342
35 Correct 20 ms 3224 KB Output is correct
36 Partially correct 523 ms 3720 KB Partially correct - number of queries: 8292
37 Correct 45 ms 3516 KB Output is correct
38 Correct 12 ms 3168 KB Output is correct
39 Partially correct 539 ms 3456 KB Partially correct - number of queries: 8400
40 Partially correct 480 ms 3820 KB Partially correct - number of queries: 7458
41 Partially correct 556 ms 3548 KB Partially correct - number of queries: 8541
42 Partially correct 580 ms 3548 KB Partially correct - number of queries: 8541
43 Partially correct 540 ms 3892 KB Partially correct - number of queries: 8250
44 Partially correct 553 ms 3956 KB Partially correct - number of queries: 8445
45 Partially correct 547 ms 3464 KB Partially correct - number of queries: 8335
46 Partially correct 518 ms 3512 KB Partially correct - number of queries: 8217
47 Partially correct 543 ms 3624 KB Partially correct - number of queries: 8391
48 Partially correct 544 ms 3848 KB Partially correct - number of queries: 8666
49 Partially correct 505 ms 3728 KB Partially correct - number of queries: 8253
50 Partially correct 578 ms 3668 KB Partially correct - number of queries: 8744
51 Partially correct 525 ms 3516 KB Partially correct - number of queries: 8455
52 Partially correct 512 ms 3860 KB Partially correct - number of queries: 8220
53 Correct 10 ms 3188 KB Output is correct
54 Partially correct 501 ms 3632 KB Partially correct - number of queries: 8453
55 Partially correct 534 ms 3524 KB Partially correct - number of queries: 8265
56 Partially correct 522 ms 3436 KB Partially correct - number of queries: 8751
57 Partially correct 538 ms 3456 KB Partially correct - number of queries: 8565
58 Partially correct 539 ms 3876 KB Partially correct - number of queries: 8596
59 Partially correct 572 ms 3816 KB Partially correct - number of queries: 8540
60 Partially correct 551 ms 3548 KB Partially correct - number of queries: 8492
61 Correct 11 ms 3188 KB Output is correct
62 Correct 12 ms 3188 KB Output is correct
63 Correct 12 ms 3168 KB Output is correct
64 Correct 10 ms 3188 KB Output is correct
65 Correct 36 ms 3072 KB Output is correct
66 Partially correct 487 ms 3500 KB Partially correct - number of queries: 5931
67 Partially correct 541 ms 3676 KB Partially correct - number of queries: 5428
68 Partially correct 486 ms 3408 KB Partially correct - number of queries: 5676
69 Partially correct 511 ms 3196 KB Partially correct - number of queries: 5914
70 Correct 332 ms 3844 KB Output is correct
71 Partially correct 533 ms 3544 KB Partially correct - number of queries: 9418
72 Correct 42 ms 3336 KB Output is correct
73 Partially correct 530 ms 3564 KB Partially correct - number of queries: 9285
74 Partially correct 492 ms 3860 KB Partially correct - number of queries: 9342
75 Correct 13 ms 3096 KB Output is correct
76 Partially correct 473 ms 3440 KB Partially correct - number of queries: 8050
77 Partially correct 531 ms 3728 KB Partially correct - number of queries: 8806
78 Correct 44 ms 3432 KB Output is correct
79 Correct 239 ms 3456 KB Output is correct
80 Partially correct 546 ms 3828 KB Partially correct - number of queries: 8785
81 Partially correct 516 ms 3972 KB Partially correct - number of queries: 8802
82 Partially correct 505 ms 3496 KB Partially correct - number of queries: 8710
83 Correct 11 ms 3184 KB Output is correct
84 Partially correct 418 ms 3508 KB Partially correct - number of queries: 7195
85 Partially correct 505 ms 3568 KB Partially correct - number of queries: 8666
86 Incorrect 81 ms 3136 KB Incorrect
87 Halted 0 ms 0 KB -