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답안 #1063183

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1063183 2024-08-17T14:56:11 Z ArthuroWich 커다란 상품 (IOI17_prize) C++17
100 / 100
 43 ms 11656 KB 
#include"prize.h"
#include<bits/stdc++.h>
using namespace std;
vector<vector<int>> seg(200005, {-1, -1});
int ans = -1, mx = 0;
void check(int i) {
    if (seg[i][0] == seg[i][1] && seg[i][0] == 0) {
        ans = i;
    }
}
void Ask(int i) {
    if (seg[i][0] == -1) {
        seg[i] = ask(i);
        mx = max(mx, seg[i][0]+seg[i][1]);
        check(i);
    }
}
void calc(int l, int r, int xl, int xr) {
    if (ans != -1) {
        return;
    }
    if (r-l < 2) {
        Ask(l);
        Ask(r);
        return;
    }
    if (xl+xr >= mx) {
        return;
    }
    int m1 = (l+r)/2, m2 = (l+r)/2;
    for (; m1 > l; m1--) {
        Ask(m1);
        if (ans != -1) {
            return;
        }
        if (seg[m1][0]+seg[m1][1] == mx) {
            break;
        }
    }
    calc(l, m1, xl, seg[m1][1]);
    if (ans != -1) {
        return;
    }
    for (; m2 < r; m2++) {
        Ask(m2);
        if (ans != -1) {
            return;
        }
        if (seg[m2][0]+seg[m2][1] == mx) {
            break;
        }
    }
    calc(m2, r, seg[m2][0], xr);
}
int find_best(int n) {
    srand(time(NULL));
    for (int i = 0; i < 240; i++) {
        Ask(rand()%n);
    }
    calc(0, n-1, 0, 0);
    return ans;
}

Subtask #1
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 11352 KB Output is correct
2 Correct 11 ms 11352 KB Output is correct
3 Correct 10 ms 11352 KB Output is correct
4 Correct 9 ms 11352 KB Output is correct
5 Correct 13 ms 11352 KB Output is correct
6 Correct 11 ms 11404 KB Output is correct
7 Correct 11 ms 11228 KB Output is correct
8 Correct 10 ms 11352 KB Output is correct
9 Correct 8 ms 11352 KB Output is correct
10 Correct 14 ms 11352 KB Output is correct

Subtask #2
80.0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 11352 KB Output is correct
2 Correct 10 ms 11400 KB Output is correct
3 Correct 10 ms 11316 KB Output is correct
4 Correct 13 ms 11272 KB Output is correct
5 Correct 11 ms 11404 KB Output is correct
6 Correct 8 ms 11404 KB Output is correct
7 Correct 8 ms 11400 KB Output is correct
8 Correct 18 ms 11352 KB Output is correct
9 Correct 16 ms 11352 KB Output is correct
10 Correct 8 ms 11176 KB Output is correct
11 Correct 11 ms 11352 KB Output is correct
12 Correct 15 ms 11180 KB Output is correct
13 Correct 18 ms 11512 KB Output is correct
14 Correct 10 ms 11352 KB Output is correct
15 Correct 14 ms 11352 KB Output is correct
16 Correct 33 ms 11208 KB Output is correct
17 Correct 13 ms 11316 KB Output is correct
18 Correct 37 ms 11352 KB Output is correct
19 Correct 12 ms 11396 KB Output is correct
20 Correct 19 ms 11352 KB Output is correct
21 Correct 22 ms 11252 KB Output is correct
22 Correct 13 ms 11352 KB Output is correct
23 Correct 11 ms 11352 KB Output is correct
24 Correct 10 ms 11400 KB Output is correct
25 Correct 26 ms 11400 KB Output is correct
26 Correct 23 ms 11284 KB Output is correct
27 Correct 16 ms 11352 KB Output is correct
28 Correct 30 ms 11252 KB Output is correct
29 Correct 23 ms 11352 KB Output is correct
30 Correct 34 ms 11352 KB Output is correct
31 Correct 14 ms 11352 KB Output is correct
32 Correct 16 ms 11484 KB Output is correct
33 Correct 15 ms 11352 KB Output is correct
34 Correct 23 ms 11352 KB Output is correct
35 Correct 18 ms 11212 KB Output is correct
36 Correct 15 ms 11352 KB Output is correct
37 Correct 13 ms 11508 KB Output is correct
38 Correct 15 ms 11352 KB Output is correct
39 Correct 17 ms 11352 KB Output is correct
40 Correct 33 ms 11244 KB Output is correct
41 Correct 23 ms 11352 KB Output is correct
42 Correct 27 ms 11404 KB Output is correct
43 Correct 24 ms 11276 KB Output is correct
44 Correct 28 ms 11384 KB Output is correct
45 Correct 19 ms 11352 KB Output is correct
46 Correct 9 ms 11348 KB Output is correct
47 Correct 25 ms 11304 KB Output is correct
48 Correct 30 ms 11340 KB Output is correct
49 Correct 10 ms 11352 KB Output is correct
50 Correct 38 ms 11352 KB Output is correct
51 Correct 18 ms 11400 KB Output is correct
52 Correct 16 ms 11352 KB Output is correct
53 Correct 12 ms 11352 KB Output is correct
54 Correct 18 ms 11352 KB Output is correct
55 Correct 13 ms 11656 KB Output is correct
56 Correct 33 ms 11352 KB Output is correct
57 Correct 23 ms 11352 KB Output is correct
58 Correct 26 ms 11352 KB Output is correct
59 Correct 28 ms 11352 KB Output is correct
60 Correct 25 ms 11352 KB Output is correct
61 Correct 20 ms 11240 KB Output is correct
62 Correct 11 ms 11352 KB Output is correct
63 Correct 9 ms 11400 KB Output is correct
64 Correct 9 ms 11352 KB Output is correct
65 Correct 9 ms 11352 KB Output is correct
66 Correct 12 ms 11400 KB Output is correct
67 Correct 9 ms 11352 KB Output is correct
68 Correct 10 ms 11352 KB Output is correct
69 Correct 11 ms 11352 KB Output is correct
70 Correct 17 ms 11352 KB Output is correct
71 Correct 42 ms 11352 KB Output is correct
72 Correct 14 ms 11352 KB Output is correct
73 Correct 43 ms 11352 KB Output is correct
74 Correct 31 ms 11352 KB Output is correct
75 Correct 10 ms 11352 KB Output is correct
76 Correct 24 ms 11352 KB Output is correct
77 Correct 36 ms 11352 KB Output is correct
78 Correct 11 ms 11352 KB Output is correct
79 Correct 15 ms 11352 KB Output is correct
80 Correct 26 ms 11352 KB Output is correct
81 Correct 37 ms 11352 KB Output is correct
82 Correct 28 ms 11352 KB Output is correct
83 Correct 9 ms 11352 KB Output is correct
84 Correct 21 ms 11404 KB Output is correct
85 Correct 34 ms 11348 KB Output is correct
86 Correct 17 ms 11352 KB Output is correct
87 Correct 11 ms 11232 KB Output is correct
88 Correct 18 ms 11352 KB Output is correct
89 Correct 18 ms 11352 KB Output is correct
90 Correct 11 ms 11352 KB Output is correct
91 Correct 10 ms 11352 KB Output is correct
92 Correct 11 ms 11352 KB Output is correct
93 Correct 15 ms 11352 KB Output is correct
94 Correct 15 ms 11352 KB Output is correct
95 Correct 13 ms 11352 KB Output is correct
96 Correct 12 ms 11352 KB Output is correct
97 Correct 9 ms 11352 KB Output is correct