oj.uz

Submission #590527

# Submission time Handle Problem Language Result Execution time Memory
590527 2022-07-06T05:20:26 Z karrigan Xylophone (JOI18_xylophone) C++14
100 / 100
 72 ms 464 KB 
#include<bits/stdc++.h>
#include <xylophone.h>
#define fastio ios_base::sync_with_stdio(false);cin.tie(nullptr);
using namespace std;
int a[10009];
int pos[10009];
void solve(int n){
for (int i=1;i<=2*n;i++){
    pos[i]=0;
}
int l=1,r=n;
int pos1=1;
while (l<=r){
    int mid=(l+r)/2;
    int dd=query(mid,n);
    if (dd==n-1){
        l=mid+1;
        pos1=mid;
    }
    else {
        r=mid-1;
    }
}
a[pos1]=1;
pos[1]=1;
answer(pos1,1);
if (pos1<n){
a[pos1+1]=query(pos1,pos1+1)+1;
pos[a[pos1+1]]=1;
answer(pos1+1,a[pos1+1]);
for (int i=pos1+2;i<=n;i++){
    int d=query(i-1,i);
     if (a[i-1]+d>n||pos[a[i-1]+d]){
        a[i]=a[i-1]-d;
        pos[a[i]]=1;
        answer(i,a[i]);
     	continue;
     }
     if (a[i-1]-d<=0||pos[a[i-1]-d]){
     	a[i]=a[i-1]+d;
     	pos[a[i]]=1;
     	answer(i,a[i]);
     	continue;
     }
     int r=query(i-2,i);
     if (a[i-2]<a[i-1]){
     	if (a[i-1]+d==a[i-2]+r)a[i]=a[i-1]+d;
     	else a[i]=a[i-1]-d;
     	pos[a[i]]=1;
     	answer(i,a[i]);
     }
     else {
     	if (a[i-1]-d==a[i-2]-r)a[i]=a[i-1]-d;
     	else a[i]=a[i-1]+d;
     	pos[a[i]]=1;
     	answer(i,a[i]);
     }
}
}
if (pos1>1){
a[pos1-1]=query(pos1-1,pos1)+1;
pos[a[pos1-1]]=1;
answer(pos1-1,a[pos1-1]);
for (int i=pos1-2;i>=1;i--){
     int d=query(i,i+1);
     if (a[i+1]+d>n||pos[a[i+1]+d]){
        a[i]=a[i+1]-d;
        pos[a[i]]=1;
        answer(i,a[i]);
     	continue;
     }
     if (a[i+1]-d<=0||pos[a[i+1]-d]){
     	a[i]=a[i+1]+d;
     	pos[a[i]]=1;
     	answer(i,a[i]);
     	continue;
     }
     int r=query(i,i+2);
     if (a[i+2]<a[i+1]){
     	if (a[i+1]+d==a[i+2]+r)a[i]=a[i+1]+d;
     	else a[i]=a[i+1]-d;
     	pos[a[i]]=1;
     	answer(i,a[i]);
     }
     else {
     	if (a[i+1]-d==a[i+2]-r)a[i]=a[i+1]-d;
     	else a[i]=a[i+1]+d;
     	pos[a[i]]=1;
     	answer(i,a[i]);
     }
}
}   
}

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 2 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 2 ms 208 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 2 ms 308 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 3 ms 308 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 2 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 2 ms 208 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 2 ms 308 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 3 ms 308 KB Output is correct
15 Correct 2 ms 208 KB Output is correct
16 Correct 3 ms 208 KB Output is correct
17 Correct 7 ms 208 KB Output is correct
18 Correct 10 ms 208 KB Output is correct
19 Correct 13 ms 208 KB Output is correct
20 Correct 14 ms 208 KB Output is correct
21 Correct 14 ms 324 KB Output is correct
22 Correct 13 ms 208 KB Output is correct
23 Correct 13 ms 320 KB Output is correct
24 Correct 7 ms 208 KB Output is correct
25 Correct 9 ms 320 KB Output is correct
26 Correct 11 ms 320 KB Output is correct
27 Correct 12 ms 324 KB Output is correct
28 Correct 12 ms 320 KB Output is correct
29 Correct 9 ms 316 KB Output is correct
30 Correct 12 ms 324 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 2 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 2 ms 208 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 2 ms 308 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 3 ms 308 KB Output is correct
15 Correct 2 ms 208 KB Output is correct
16 Correct 3 ms 208 KB Output is correct
17 Correct 7 ms 208 KB Output is correct
18 Correct 10 ms 208 KB Output is correct
19 Correct 13 ms 208 KB Output is correct
20 Correct 14 ms 208 KB Output is correct
21 Correct 14 ms 324 KB Output is correct
22 Correct 13 ms 208 KB Output is correct
23 Correct 13 ms 320 KB Output is correct
24 Correct 7 ms 208 KB Output is correct
25 Correct 9 ms 320 KB Output is correct
26 Correct 11 ms 320 KB Output is correct
27 Correct 12 ms 324 KB Output is correct
28 Correct 12 ms 320 KB Output is correct
29 Correct 9 ms 316 KB Output is correct
30 Correct 12 ms 324 KB Output is correct
31 Correct 23 ms 208 KB Output is correct
32 Correct 33 ms 320 KB Output is correct
33 Correct 24 ms 348 KB Output is correct
34 Correct 56 ms 344 KB Output is correct
35 Correct 51 ms 340 KB Output is correct
36 Correct 43 ms 348 KB Output is correct
37 Correct 43 ms 464 KB Output is correct
38 Correct 43 ms 348 KB Output is correct
39 Correct 57 ms 336 KB Output is correct
40 Correct 50 ms 336 KB Output is correct
41 Correct 49 ms 344 KB Output is correct
42 Correct 40 ms 336 KB Output is correct
43 Correct 47 ms 336 KB Output is correct
44 Correct 48 ms 464 KB Output is correct
45 Correct 55 ms 340 KB Output is correct
46 Correct 72 ms 464 KB Output is correct
47 Correct 49 ms 456 KB Output is correct
48 Correct 57 ms 352 KB Output is correct
49 Correct 55 ms 348 KB Output is correct
50 Correct 52 ms 348 KB Output is correct
51 Correct 58 ms 340 KB Output is correct
52 Correct 50 ms 352 KB Output is correct
53 Correct 51 ms 336 KB Output is correct
54 Correct 52 ms 336 KB Output is correct
55 Correct 57 ms 396 KB Output is correct
56 Correct 62 ms 340 KB Output is correct
57 Correct 55 ms 336 KB Output is correct
58 Correct 56 ms 336 KB Output is correct
59 Correct 58 ms 336 KB Output is correct
60 Correct 52 ms 352 KB Output is correct