oj.uz

Submission #918980

# Submission time Handle Problem Language Result Execution time Memory
918980 2024-01-31T02:10:51 Z viwlesxq Xylophone (JOI18_xylophone) C++17
47 / 100
 41 ms 500 KB 
#include <bits/stdc++.h>
using namespace std;
#include "xylophone.h"

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;
    for (int i = min - 1; i > 0; --i) {
        int diff = (i + 1 < last ? query(i, last) : d[i]), add = d[i];
        if (sum + add != diff) {
            last = i + 1, sum = 0;
            increasing ^= true;
        }
        a[i] = a[i + 1] + (increasing ? add : -add);
        sum += add;
    }
    last = min, sum = 0;
    increasing = true;
    for (int i = min + 1; i <= n; ++i) {
        int diff = (last + 1 < i ? query(last, i) : d[last]), add = d[i - 1];
        if (sum + add != diff) {
            last = i - 1, sum = 0;
            increasing ^= true;
        }
        a[i] = a[i - 1] + (increasing ? add : -add);
        sum += add;
    }
    for (int i = 1; i <= n; ++i) {
        answer(i, a[i]);
    }
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 500 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 352 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct

Subtask #2
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 500 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 352 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 4 ms 440 KB Output is correct
18 Correct 7 ms 444 KB Output is correct
19 Correct 8 ms 344 KB Output is correct
20 Correct 7 ms 440 KB Output is correct
21 Correct 7 ms 344 KB Output is correct
22 Correct 9 ms 344 KB Output is correct
23 Correct 8 ms 444 KB Output is correct
24 Correct 8 ms 440 KB Output is correct
25 Correct 9 ms 444 KB Output is correct
26 Correct 10 ms 440 KB Output is correct
27 Correct 11 ms 344 KB Output is correct
28 Correct 8 ms 344 KB Output is correct
29 Correct 8 ms 444 KB Output is correct
30 Correct 7 ms 448 KB Output is correct

Subtask #3
0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 500 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 352 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 4 ms 440 KB Output is correct
18 Correct 7 ms 444 KB Output is correct
19 Correct 8 ms 344 KB Output is correct
20 Correct 7 ms 440 KB Output is correct
21 Correct 7 ms 344 KB Output is correct
22 Correct 9 ms 344 KB Output is correct
23 Correct 8 ms 444 KB Output is correct
24 Correct 8 ms 440 KB Output is correct
25 Correct 9 ms 444 KB Output is correct
26 Correct 10 ms 440 KB Output is correct
27 Correct 11 ms 344 KB Output is correct
28 Correct 8 ms 344 KB Output is correct
29 Correct 8 ms 444 KB Output is correct
30 Correct 7 ms 448 KB Output is correct
31 Correct 22 ms 428 KB Output is correct
32 Correct 27 ms 432 KB Output is correct
33 Correct 31 ms 448 KB Output is correct
34 Incorrect 41 ms 344 KB Wrong Answer [2]
35 Halted 0 ms 0 KB -