oj.uz

Submission #751690

# Submission time Handle Problem Language Result Execution time Memory
751690 2023-06-01T08:33:23 Z sofija6 Xylophone (JOI18_xylophone) C++14
100 / 100
 410 ms 712 KB 
#include "xylophone.h"
#include <bits/stdc++.h>

using namespace std;
static int A[5000];

void solve(int N) {
    int diff2[N+2],diff3[N+2],cnt[N+2];
    for (int i=1;i<N;i++)
    {
        if (i<N-1)
            diff3[i]=query(i,i+2);
        diff2[i]=query(i,i+1);
    }
    for (int i=1;i<=N;i++)
    {
        int cur=1;
        A[1]=i;
        for (int j=2;j<=N;j++)
        {
            if (j>2 && N>2 && diff3[j-2]!=diff2[j-2]+diff2[j-1])
                cur*=(-1);
            A[j]=A[j-1]+diff2[j-1]*cur;
        }
        bool yes=true;
        for (int j=1;j<=N;j++)
            cnt[j]=0;
        for (int j=1;j<=N;j++)
        {
            if (A[j]<=N && A[j]>=1)
            {
                if ((A[j]==N && !cnt[1]) || cnt[A[j]])
                    yes=false;
                cnt[A[j]]++;
            }
        }
        for (int j=1;j<=N;j++)
        {
            if (!cnt[j])
                yes=false;
        }
        if (yes)
        {
            for (int j=1;j<=N;j++)
                answer(j,A[j]);
            return;
        }
        yes=true;
        cur=-1;
        for (int j=2;j<=N;j++)
        {
            if (j>2 && N>2 && diff3[j-2]!=diff2[j-2]+diff2[j-1])
                cur*=(-1);
            A[j]=A[j-1]+diff2[j-1]*cur;
        }
        for (int j=1;j<=N;j++)
            cnt[j]=0;
        for (int j=1;j<=N;j++)
        {
            if (A[j]<=N && A[j]>=1)
            {
                if ((A[j]==N && !cnt[1]) || cnt[A[j]])
                    yes=false;
                cnt[A[j]]++;
            }
        }
        for (int j=1;j<=N;j++)
        {
            if (!cnt[j])
                yes=false;
        }
        if (yes)
        {
            for (int j=1;j<=N;j++)
                answer(j,A[j]);
            return;
        }
    }
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 3 ms 208 KB Output is correct
5 Correct 3 ms 208 KB Output is correct
6 Correct 3 ms 208 KB Output is correct
7 Correct 3 ms 208 KB Output is correct
8 Correct 2 ms 208 KB Output is correct
9 Correct 3 ms 208 KB Output is correct
10 Correct 2 ms 208 KB Output is correct
11 Correct 3 ms 208 KB Output is correct
12 Correct 3 ms 208 KB Output is correct
13 Correct 2 ms 208 KB Output is correct
14 Correct 2 ms 208 KB Output is correct
15 Correct 2 ms 208 KB Output is correct

Subtask #2
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 3 ms 208 KB Output is correct
5 Correct 3 ms 208 KB Output is correct
6 Correct 3 ms 208 KB Output is correct
7 Correct 3 ms 208 KB Output is correct
8 Correct 2 ms 208 KB Output is correct
9 Correct 3 ms 208 KB Output is correct
10 Correct 2 ms 208 KB Output is correct
11 Correct 3 ms 208 KB Output is correct
12 Correct 3 ms 208 KB Output is correct
13 Correct 2 ms 208 KB Output is correct
14 Correct 2 ms 208 KB Output is correct
15 Correct 2 ms 208 KB Output is correct
16 Correct 5 ms 208 KB Output is correct
17 Correct 13 ms 208 KB Output is correct
18 Correct 22 ms 304 KB Output is correct
19 Correct 28 ms 208 KB Output is correct
20 Correct 28 ms 208 KB Output is correct
21 Correct 25 ms 208 KB Output is correct
22 Correct 23 ms 208 KB Output is correct
23 Correct 21 ms 208 KB Output is correct
24 Correct 26 ms 208 KB Output is correct
25 Correct 12 ms 300 KB Output is correct
26 Correct 25 ms 300 KB Output is correct
27 Correct 18 ms 208 KB Output is correct
28 Correct 20 ms 292 KB Output is correct
29 Correct 26 ms 208 KB Output is correct
30 Correct 10 ms 312 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 3 ms 208 KB Output is correct
5 Correct 3 ms 208 KB Output is correct
6 Correct 3 ms 208 KB Output is correct
7 Correct 3 ms 208 KB Output is correct
8 Correct 2 ms 208 KB Output is correct
9 Correct 3 ms 208 KB Output is correct
10 Correct 2 ms 208 KB Output is correct
11 Correct 3 ms 208 KB Output is correct
12 Correct 3 ms 208 KB Output is correct
13 Correct 2 ms 208 KB Output is correct
14 Correct 2 ms 208 KB Output is correct
15 Correct 2 ms 208 KB Output is correct
16 Correct 5 ms 208 KB Output is correct
17 Correct 13 ms 208 KB Output is correct
18 Correct 22 ms 304 KB Output is correct
19 Correct 28 ms 208 KB Output is correct
20 Correct 28 ms 208 KB Output is correct
21 Correct 25 ms 208 KB Output is correct
22 Correct 23 ms 208 KB Output is correct
23 Correct 21 ms 208 KB Output is correct
24 Correct 26 ms 208 KB Output is correct
25 Correct 12 ms 300 KB Output is correct
26 Correct 25 ms 300 KB Output is correct
27 Correct 18 ms 208 KB Output is correct
28 Correct 20 ms 292 KB Output is correct
29 Correct 26 ms 208 KB Output is correct
30 Correct 10 ms 312 KB Output is correct
31 Correct 58 ms 308 KB Output is correct
32 Correct 177 ms 328 KB Output is correct
33 Correct 196 ms 344 KB Output is correct
34 Correct 290 ms 360 KB Output is correct
35 Correct 349 ms 356 KB Output is correct
36 Correct 116 ms 340 KB Output is correct
37 Correct 188 ms 456 KB Output is correct
38 Correct 90 ms 344 KB Output is correct
39 Correct 113 ms 360 KB Output is correct
40 Correct 229 ms 352 KB Output is correct
41 Correct 275 ms 352 KB Output is correct
42 Correct 94 ms 336 KB Output is correct
43 Correct 198 ms 344 KB Output is correct
44 Correct 89 ms 356 KB Output is correct
45 Correct 174 ms 340 KB Output is correct
46 Correct 246 ms 344 KB Output is correct
47 Correct 304 ms 344 KB Output is correct
48 Correct 95 ms 352 KB Output is correct
49 Correct 312 ms 344 KB Output is correct
50 Correct 254 ms 712 KB Output is correct
51 Correct 223 ms 472 KB Output is correct
52 Correct 121 ms 352 KB Output is correct
53 Correct 342 ms 360 KB Output is correct
54 Correct 331 ms 460 KB Output is correct
55 Correct 365 ms 356 KB Output is correct
56 Correct 410 ms 352 KB Output is correct
57 Correct 342 ms 352 KB Output is correct
58 Correct 403 ms 356 KB Output is correct
59 Correct 280 ms 356 KB Output is correct
60 Correct 262 ms 352 KB Output is correct