oj.uz

Submission #431492

# Submission time Handle Problem Language Result Execution time Memory
431492 2021-06-17T12:14:15 Z Mazaalai The Big Prize (IOI17_prize) C++17
100 / 100
 57 ms 580 KB 
#include "prize.h"
#include <bits/stdc++.h>
#define ff first
#define ss second
using namespace std;
typedef pair <int, int> PII;

map <int, PII> asked;
bool found;
const int N = 2e5+50;
int ans = -1, n, miniCnt;

PII askPos(int n) {
	if (asked.count(n)) return asked[n];
	vector <int> res = ask(n);
	PII cur = {res[0], res[1]};
	if (cur.ff + cur.ss == 0) {
		ans = n;
		found = 1;
	}
	return asked[n] = cur;
}
 
void find(int l, int r, int L, int R) {
	if (r < l || found) return;
	if (miniCnt == L + R) return;
	int m = (l+r)>>1;
	int x = m;
	PII res;
	for (; x <= r && !found; x++) {
		res = askPos(x);
		if (res.ff + res.ss > miniCnt) {
			miniCnt = res.ff + res.ss;
			find(0, n-1, 0, 0);
		}
		if (res.ff + res.ss == miniCnt) break;
	}
	if (l != r && !found) {
		find(l, m-1, L, x - m + res.ss);
		find(x+1, r, res.ff, R);
	}
}
 
int find_best(int n1) {
	miniCnt = 1;
	n = n1;
	find(0, n-1, 0, 0);
	return ans;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 284 KB Output is correct
2 Correct 1 ms 264 KB Output is correct
3 Correct 1 ms 200 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Correct 1 ms 200 KB Output is correct
6 Correct 1 ms 284 KB Output is correct
7 Correct 1 ms 200 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 1 ms 200 KB Output is correct
10 Correct 1 ms 200 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 264 KB Output is correct
3 Correct 1 ms 200 KB Output is correct
4 Correct 2 ms 284 KB Output is correct
5 Correct 1 ms 268 KB Output is correct
6 Correct 1 ms 272 KB Output is correct
7 Correct 1 ms 284 KB Output is correct
8 Correct 1 ms 264 KB Output is correct
9 Correct 1 ms 200 KB Output is correct
10 Correct 1 ms 200 KB Output is correct
11 Correct 4 ms 276 KB Output is correct
12 Correct 1 ms 260 KB Output is correct
13 Correct 5 ms 280 KB Output is correct
14 Correct 2 ms 292 KB Output is correct
15 Correct 9 ms 284 KB Output is correct
16 Correct 46 ms 448 KB Output is correct
17 Correct 1 ms 200 KB Output is correct
18 Correct 47 ms 580 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 13 ms 316 KB Output is correct
21 Correct 22 ms 320 KB Output is correct
22 Correct 3 ms 288 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 200 KB Output is correct
25 Correct 22 ms 320 KB Output is correct
26 Correct 23 ms 400 KB Output is correct
27 Correct 3 ms 280 KB Output is correct
28 Correct 45 ms 452 KB Output is correct
29 Correct 30 ms 448 KB Output is correct
30 Correct 38 ms 448 KB Output is correct
31 Correct 1 ms 200 KB Output is correct
32 Correct 4 ms 272 KB Output is correct
33 Correct 1 ms 200 KB Output is correct
34 Correct 15 ms 260 KB Output is correct
35 Correct 4 ms 280 KB Output is correct
36 Correct 15 ms 280 KB Output is correct
37 Correct 3 ms 260 KB Output is correct
38 Correct 1 ms 288 KB Output is correct
39 Correct 20 ms 328 KB Output is correct
40 Correct 42 ms 404 KB Output is correct
41 Correct 20 ms 424 KB Output is correct
42 Correct 31 ms 312 KB Output is correct
43 Correct 23 ms 372 KB Output is correct
44 Correct 13 ms 360 KB Output is correct
45 Correct 17 ms 280 KB Output is correct
46 Correct 1 ms 200 KB Output is correct
47 Correct 18 ms 320 KB Output is correct
48 Correct 19 ms 472 KB Output is correct
49 Correct 5 ms 200 KB Output is correct
50 Correct 53 ms 456 KB Output is correct
51 Correct 22 ms 328 KB Output is correct
52 Correct 3 ms 284 KB Output is correct
53 Correct 3 ms 260 KB Output is correct
54 Correct 18 ms 388 KB Output is correct
55 Correct 1 ms 200 KB Output is correct
56 Correct 42 ms 528 KB Output is correct
57 Correct 29 ms 404 KB Output is correct
58 Correct 35 ms 404 KB Output is correct
59 Correct 28 ms 404 KB Output is correct
60 Correct 26 ms 376 KB Output is correct
61 Correct 2 ms 264 KB Output is correct
62 Correct 1 ms 200 KB Output is correct
63 Correct 1 ms 276 KB Output is correct
64 Correct 1 ms 200 KB Output is correct
65 Correct 1 ms 200 KB Output is correct
66 Correct 5 ms 288 KB Output is correct
67 Correct 5 ms 284 KB Output is correct
68 Correct 1 ms 200 KB Output is correct
69 Correct 6 ms 272 KB Output is correct
70 Correct 5 ms 260 KB Output is correct
71 Correct 44 ms 520 KB Output is correct
72 Correct 5 ms 200 KB Output is correct
73 Correct 57 ms 492 KB Output is correct
74 Correct 40 ms 496 KB Output is correct
75 Correct 3 ms 200 KB Output is correct
76 Correct 49 ms 464 KB Output is correct
77 Correct 52 ms 512 KB Output is correct
78 Correct 5 ms 312 KB Output is correct
79 Correct 22 ms 356 KB Output is correct
80 Correct 43 ms 488 KB Output is correct
81 Correct 41 ms 552 KB Output is correct
82 Correct 41 ms 528 KB Output is correct
83 Correct 2 ms 296 KB Output is correct
84 Correct 31 ms 408 KB Output is correct
85 Correct 42 ms 432 KB Output is correct
86 Correct 5 ms 344 KB Output is correct
87 Correct 3 ms 200 KB Output is correct
88 Correct 6 ms 312 KB Output is correct
89 Correct 6 ms 320 KB Output is correct
90 Correct 2 ms 200 KB Output is correct
91 Correct 3 ms 304 KB Output is correct
92 Correct 7 ms 324 KB Output is correct
93 Correct 4 ms 200 KB Output is correct
94 Correct 4 ms 200 KB Output is correct
95 Correct 3 ms 200 KB Output is correct
96 Correct 4 ms 300 KB Output is correct
97 Correct 1 ms 200 KB Output is correct