Submission #210309

# Submission time Handle Problem Language Result Execution time Memory
210309 2020-03-17T03:03:13 Z joylintp Xylophone (JOI18_xylophone) C++14
100 / 100
105 ms 412 KB
#include"xylophone.h"
#include<bits/stdc++.h>
using namespace std;

void solve(int n)
{
    if (n == 2)
    {
        answer(1, 1), answer(2, 2);
        return;
    }

	int d[5001], e[5001];
	for (int i = 1; i <= n - 1; i++)
        d[i] = query(i, i + 1);
    for (int i = 1; i <= n - 2; i++)
        e[i] = query(i, i + 2);

    bool pp;
    int ans[5001];
    ans[1] = 1, ans[2] = ans[1] + d[1];
    if (d[1] + d[2] == e[1])
        ans[3] = ans[2] + d[2], pp = true;
    else
        ans[3] = ans[2] - d[2], pp = false;

    for (int i = 4; i <= n; i++)
        if (d[i - 2] + d[i - 1] == e[i - 2])
            if (pp)
                ans[i] = ans[i - 1] + d[i - 1];
            else
                ans[i] = ans[i - 1] - d[i - 1];
        else
            if (pp)
                ans[i] = ans[i - 1] - d[i - 1], pp = false;
            else
                ans[i] = ans[i - 1] + d[i - 1], pp = true;

    int mn = 1e9;
    for (int i = 1; i <= n; i++)
        mn = min(mn, ans[i]);
    for (int i = 1; i <= n; i++)
        ans[i] += -mn + 1;

    bool ok;
    for (int i = 1; i <= n; i++)
        if (ans[i] == 1)
        {
            ok = true;
            break;
        }
        else if (ans[i] == n)
        {
            ok = false;
            break;
        }
        else;

    if (!ok)
        for (int i = 1; i <= n; i++)
            ans[i] = n - ans[i] + 1;

    for (int i = 1; i <= n; i++)
        answer(i, ans[i]);
}

Compilation message

xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:59:5: warning: 'ok' may be used uninitialized in this function [-Wmaybe-uninitialized]
     if (!ok)
     ^~
# Verdict Execution time Memory Grader output
1 Correct 5 ms 248 KB Output is correct
2 Correct 5 ms 248 KB Output is correct
3 Correct 6 ms 380 KB Output is correct
4 Correct 6 ms 248 KB Output is correct
5 Correct 6 ms 248 KB Output is correct
6 Correct 6 ms 248 KB Output is correct
7 Correct 7 ms 248 KB Output is correct
8 Correct 6 ms 376 KB Output is correct
9 Correct 7 ms 376 KB Output is correct
10 Correct 6 ms 248 KB Output is correct
11 Correct 6 ms 248 KB Output is correct
12 Correct 7 ms 248 KB Output is correct
13 Correct 6 ms 412 KB Output is correct
14 Correct 7 ms 248 KB Output is correct
15 Correct 7 ms 248 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 5 ms 248 KB Output is correct
2 Correct 5 ms 248 KB Output is correct
3 Correct 6 ms 380 KB Output is correct
4 Correct 6 ms 248 KB Output is correct
5 Correct 6 ms 248 KB Output is correct
6 Correct 6 ms 248 KB Output is correct
7 Correct 7 ms 248 KB Output is correct
8 Correct 6 ms 376 KB Output is correct
9 Correct 7 ms 376 KB Output is correct
10 Correct 6 ms 248 KB Output is correct
11 Correct 6 ms 248 KB Output is correct
12 Correct 7 ms 248 KB Output is correct
13 Correct 6 ms 412 KB Output is correct
14 Correct 7 ms 248 KB Output is correct
15 Correct 7 ms 248 KB Output is correct
16 Correct 8 ms 248 KB Output is correct
17 Correct 10 ms 400 KB Output is correct
18 Correct 20 ms 300 KB Output is correct
19 Correct 24 ms 248 KB Output is correct
20 Correct 26 ms 376 KB Output is correct
21 Correct 27 ms 252 KB Output is correct
22 Correct 22 ms 376 KB Output is correct
23 Correct 20 ms 248 KB Output is correct
24 Correct 24 ms 376 KB Output is correct
25 Correct 25 ms 248 KB Output is correct
26 Correct 27 ms 376 KB Output is correct
27 Correct 24 ms 248 KB Output is correct
28 Correct 20 ms 376 KB Output is correct
29 Correct 21 ms 248 KB Output is correct
30 Correct 22 ms 248 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 5 ms 248 KB Output is correct
2 Correct 5 ms 248 KB Output is correct
3 Correct 6 ms 380 KB Output is correct
4 Correct 6 ms 248 KB Output is correct
5 Correct 6 ms 248 KB Output is correct
6 Correct 6 ms 248 KB Output is correct
7 Correct 7 ms 248 KB Output is correct
8 Correct 6 ms 376 KB Output is correct
9 Correct 7 ms 376 KB Output is correct
10 Correct 6 ms 248 KB Output is correct
11 Correct 6 ms 248 KB Output is correct
12 Correct 7 ms 248 KB Output is correct
13 Correct 6 ms 412 KB Output is correct
14 Correct 7 ms 248 KB Output is correct
15 Correct 7 ms 248 KB Output is correct
16 Correct 8 ms 248 KB Output is correct
17 Correct 10 ms 400 KB Output is correct
18 Correct 20 ms 300 KB Output is correct
19 Correct 24 ms 248 KB Output is correct
20 Correct 26 ms 376 KB Output is correct
21 Correct 27 ms 252 KB Output is correct
22 Correct 22 ms 376 KB Output is correct
23 Correct 20 ms 248 KB Output is correct
24 Correct 24 ms 376 KB Output is correct
25 Correct 25 ms 248 KB Output is correct
26 Correct 27 ms 376 KB Output is correct
27 Correct 24 ms 248 KB Output is correct
28 Correct 20 ms 376 KB Output is correct
29 Correct 21 ms 248 KB Output is correct
30 Correct 22 ms 248 KB Output is correct
31 Correct 42 ms 376 KB Output is correct
32 Correct 58 ms 376 KB Output is correct
33 Correct 85 ms 380 KB Output is correct
34 Correct 94 ms 376 KB Output is correct
35 Correct 91 ms 376 KB Output is correct
36 Correct 95 ms 376 KB Output is correct
37 Correct 91 ms 376 KB Output is correct
38 Correct 91 ms 376 KB Output is correct
39 Correct 98 ms 376 KB Output is correct
40 Correct 93 ms 376 KB Output is correct
41 Correct 87 ms 376 KB Output is correct
42 Correct 81 ms 376 KB Output is correct
43 Correct 86 ms 376 KB Output is correct
44 Correct 103 ms 380 KB Output is correct
45 Correct 88 ms 376 KB Output is correct
46 Correct 97 ms 376 KB Output is correct
47 Correct 93 ms 376 KB Output is correct
48 Correct 98 ms 376 KB Output is correct
49 Correct 96 ms 376 KB Output is correct
50 Correct 80 ms 336 KB Output is correct
51 Correct 98 ms 376 KB Output is correct
52 Correct 82 ms 376 KB Output is correct
53 Correct 105 ms 376 KB Output is correct
54 Correct 89 ms 376 KB Output is correct
55 Correct 100 ms 376 KB Output is correct
56 Correct 88 ms 376 KB Output is correct
57 Correct 101 ms 376 KB Output is correct
58 Correct 52 ms 324 KB Output is correct
59 Correct 89 ms 376 KB Output is correct
60 Correct 90 ms 376 KB Output is correct