oj.uz

Submission #995890

# Submission time Handle Problem Language Result Execution time Memory
995890 2024-06-10T03:25:31 Z khanhphucscratch Xylophone (JOI18_xylophone) C++14
100 / 100
 76 ms 748 KB 
#include<bits/stdc++.h>
#include "xylophone.h"
#define int long long
using namespace std;
/*int query(int l, int r)
{
    cout<<"? "<<l<<" "<<r<<endl;
    int x; cin>>x;
    return x;
}
void answer(int p, int v)
{
    cout<<"! "<<p<<" "<<v<<endl;
}*/
void solve(int32_t n)
{
    vector<int> a(n+1), s(n+1);
    a[2] = query(1, 2), s[2] = 0;
    int last = a[2];
    for(int i = 3; i <= n; i++){
        int cur = query(i-1, i), sum = query(i-2, i);
        a[i] = cur;
        if(last + cur == sum) s[i] = s[i-1];
        else s[i] = (s[i-1] ^ 1);
        last = cur;
    }
    vector<int> cd(n+1);
    for(int i = 1; i <= n; i++) cd[i] = cd[i-1] + a[i] * (-s[i] * 2 + 1);
    int maxplace = 1, minplace = 1;
    for(int i = 1; i <= n; i++){
        if(cd[maxplace] < cd[i]) maxplace = i;
        if(cd[minplace] > cd[i]) minplace = i;
    }
    if(maxplace < minplace){
        for(int i = 1; i <= n; i++) s[i] ^= 1;
        for(int i = 1; i <= n; i++) cd[i] = cd[i-1] + a[i] * (-s[i] * 2 + 1);
    }
    int minval = 1e18;
    for(int i = 1; i <= n; i++) minval = min(minval, cd[i]);
    for(int i = 1; i <= n; i++) cd[i] += -minval + 1;
    for(int i = 1; i <= n; i++) answer(i, cd[i]);
}
/*signed main()
{
    solve(5);
}*/

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 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 432 KB Output is correct
7 Correct 2 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 2 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 1 ms 436 KB Output is correct
14 Correct 1 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 0 ms 344 KB Output is correct
3 Correct 0 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 432 KB Output is correct
7 Correct 2 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 2 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 1 ms 436 KB Output is correct
14 Correct 1 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 344 KB Output is correct
19 Correct 6 ms 344 KB Output is correct
20 Correct 9 ms 448 KB Output is correct
21 Correct 9 ms 600 KB Output is correct
22 Correct 9 ms 456 KB Output is correct
23 Correct 7 ms 344 KB Output is correct
24 Correct 12 ms 448 KB Output is correct
25 Correct 9 ms 344 KB Output is correct
26 Correct 8 ms 344 KB Output is correct
27 Correct 12 ms 344 KB Output is correct
28 Correct 10 ms 452 KB Output is correct
29 Correct 9 ms 344 KB Output is correct
30 Correct 10 ms 452 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 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 432 KB Output is correct
7 Correct 2 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 2 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 1 ms 436 KB Output is correct
14 Correct 1 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 344 KB Output is correct
19 Correct 6 ms 344 KB Output is correct
20 Correct 9 ms 448 KB Output is correct
21 Correct 9 ms 600 KB Output is correct
22 Correct 9 ms 456 KB Output is correct
23 Correct 7 ms 344 KB Output is correct
24 Correct 12 ms 448 KB Output is correct
25 Correct 9 ms 344 KB Output is correct
26 Correct 8 ms 344 KB Output is correct
27 Correct 12 ms 344 KB Output is correct
28 Correct 10 ms 452 KB Output is correct
29 Correct 9 ms 344 KB Output is correct
30 Correct 10 ms 452 KB Output is correct
31 Correct 25 ms 460 KB Output is correct
32 Correct 32 ms 456 KB Output is correct
33 Correct 42 ms 340 KB Output is correct
34 Correct 53 ms 492 KB Output is correct
35 Correct 59 ms 488 KB Output is correct
36 Correct 59 ms 512 KB Output is correct
37 Correct 56 ms 508 KB Output is correct
38 Correct 48 ms 488 KB Output is correct
39 Correct 53 ms 488 KB Output is correct
40 Correct 35 ms 344 KB Output is correct
41 Correct 60 ms 492 KB Output is correct
42 Correct 55 ms 508 KB Output is correct
43 Correct 49 ms 492 KB Output is correct
44 Correct 48 ms 496 KB Output is correct
45 Correct 76 ms 596 KB Output is correct
46 Correct 50 ms 344 KB Output is correct
47 Correct 48 ms 496 KB Output is correct
48 Correct 43 ms 492 KB Output is correct
49 Correct 66 ms 492 KB Output is correct
50 Correct 58 ms 488 KB Output is correct
51 Correct 48 ms 492 KB Output is correct
52 Correct 58 ms 344 KB Output is correct
53 Correct 52 ms 492 KB Output is correct
54 Correct 46 ms 344 KB Output is correct
55 Correct 40 ms 592 KB Output is correct
56 Correct 70 ms 512 KB Output is correct
57 Correct 62 ms 748 KB Output is correct
58 Correct 48 ms 492 KB Output is correct
59 Correct 44 ms 508 KB Output is correct
60 Correct 68 ms 592 KB Output is correct