답안 #918997

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
918997 2024-01-31T02:53:36 Z viwlesxq Xylophone (JOI18_xylophone) C++17
47 / 100
46 ms 1232 KB
#include <bits/stdc++.h>
using namespace std;
#include "xylophone.h"
//#include "grader.cpp"

void solve(int n) {
    vector<int> a(n + 1), d(n + 1);
    for (int i = 1; i < n; ++i) {
        d[i] = query(i, i + 1);
    }
    int min = 1, hi = n;
    while (min + 1 < hi) {
        int mid = (min + hi) / 2;
        if ((mid + 1 < n ? query(mid, n) : d[mid]) == n - 1) min = mid;
        else hi = mid;
    }
    a[min] = 1;
    int last = min, sum = 0;
    bool increasing = true;
    map<int, bool> used;
    used[1] = true;
    for (int i = min - 1; i > 0; --i) {
        int add = d[i];
        if (increasing && (used[a[i + 1] + add] || a[i + 1] + add > n)) {
            increasing = false, sum = 0, last = i + 1;
        } else if (!increasing && (used[a[i + 1] - add] || a[i + 1] - add <= 0)) {
            increasing = true, sum = 0, last = i + 1;
        } else {
            int diff = (i + 1 < last ? query(i, last) : d[i]);
            if (sum + add != diff) {
                last = i + 1, sum = 0;
                increasing ^= true;
            }
        }
        a[i] = a[i + 1] + (increasing ? add : -add);
        used[a[i]] = true;
        sum += add;
    }
    last = min, sum = 0;
    increasing = true;
    for (int i = min + 1; i <= n; ++i) {
        int add = d[i - 1];
        if (increasing && (used[a[i - 1] + add] || a[i - 1] + add > n)) {
            increasing = false, sum = 0, last = i - 1;
        } else if (!increasing && (used[a[i - 1] - add] || a[i - 1] - add <= 0)) {
            increasing = true, sum = 0, last = i - 1;
        } else {
            int diff = (last + 1 < i ? query(last, i) : d[last]);
            if (sum + add != diff) {
                last = i - 1, sum = 0;
                increasing ^= true;
            }
        }
        a[i] = a[i - 1] + (increasing ? add : -add);
        used[a[i]] = true;
        sum += add;
    }
    for (int i = 1; i <= n; ++i) {
        answer(i, a[i]);
    }
}
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 436 KB Output is correct
4 Correct 1 ms 440 KB Output is correct
5 Correct 1 ms 436 KB Output is correct
6 Correct 1 ms 436 KB Output is correct
7 Correct 1 ms 436 KB Output is correct
8 Correct 1 ms 440 KB Output is correct
9 Correct 1 ms 436 KB Output is correct
10 Correct 1 ms 436 KB Output is correct
11 Correct 1 ms 432 KB Output is correct
12 Correct 1 ms 436 KB Output is correct
13 Correct 1 ms 436 KB Output is correct
14 Correct 1 ms 436 KB Output is correct
15 Correct 1 ms 436 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 436 KB Output is correct
4 Correct 1 ms 440 KB Output is correct
5 Correct 1 ms 436 KB Output is correct
6 Correct 1 ms 436 KB Output is correct
7 Correct 1 ms 436 KB Output is correct
8 Correct 1 ms 440 KB Output is correct
9 Correct 1 ms 436 KB Output is correct
10 Correct 1 ms 436 KB Output is correct
11 Correct 1 ms 432 KB Output is correct
12 Correct 1 ms 436 KB Output is correct
13 Correct 1 ms 436 KB Output is correct
14 Correct 1 ms 436 KB Output is correct
15 Correct 1 ms 436 KB Output is correct
16 Correct 2 ms 688 KB Output is correct
17 Correct 3 ms 440 KB Output is correct
18 Correct 5 ms 956 KB Output is correct
19 Correct 6 ms 696 KB Output is correct
20 Correct 6 ms 448 KB Output is correct
21 Correct 6 ms 700 KB Output is correct
22 Correct 8 ms 700 KB Output is correct
23 Correct 8 ms 696 KB Output is correct
24 Correct 4 ms 440 KB Output is correct
25 Correct 5 ms 440 KB Output is correct
26 Correct 8 ms 440 KB Output is correct
27 Correct 5 ms 440 KB Output is correct
28 Correct 8 ms 1220 KB Output is correct
29 Correct 7 ms 444 KB Output is correct
30 Correct 6 ms 700 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 436 KB Output is correct
4 Correct 1 ms 440 KB Output is correct
5 Correct 1 ms 436 KB Output is correct
6 Correct 1 ms 436 KB Output is correct
7 Correct 1 ms 436 KB Output is correct
8 Correct 1 ms 440 KB Output is correct
9 Correct 1 ms 436 KB Output is correct
10 Correct 1 ms 436 KB Output is correct
11 Correct 1 ms 432 KB Output is correct
12 Correct 1 ms 436 KB Output is correct
13 Correct 1 ms 436 KB Output is correct
14 Correct 1 ms 436 KB Output is correct
15 Correct 1 ms 436 KB Output is correct
16 Correct 2 ms 688 KB Output is correct
17 Correct 3 ms 440 KB Output is correct
18 Correct 5 ms 956 KB Output is correct
19 Correct 6 ms 696 KB Output is correct
20 Correct 6 ms 448 KB Output is correct
21 Correct 6 ms 700 KB Output is correct
22 Correct 8 ms 700 KB Output is correct
23 Correct 8 ms 696 KB Output is correct
24 Correct 4 ms 440 KB Output is correct
25 Correct 5 ms 440 KB Output is correct
26 Correct 8 ms 440 KB Output is correct
27 Correct 5 ms 440 KB Output is correct
28 Correct 8 ms 1220 KB Output is correct
29 Correct 7 ms 444 KB Output is correct
30 Correct 6 ms 700 KB Output is correct
31 Correct 15 ms 952 KB Output is correct
32 Correct 22 ms 624 KB Output is correct
33 Correct 35 ms 724 KB Output is correct
34 Correct 44 ms 1232 KB Output is correct
35 Correct 35 ms 976 KB Output is correct
36 Incorrect 46 ms 976 KB Wrong Answer [2]
37 Halted 0 ms 0 KB -