#include <bits/stdc++.h>
#include "xylophone.h"
//#include "grader.cpp"
using namespace std;
#define pb push_back
#define mp make_pair
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vi;
typedef vector<ll> vl;
//static int A[5000];
void solve(int n) {
int l = 1, r = n; // position where one is at
while(r-l>1){
int mid = (l + r) / 2;
int ans = query(mid, n);
if(ans == n-1){
l = mid;
}
else
r = mid;
}
answer(l, 1);
int arr[n+1];
memset(arr, -1, sizeof arr);
arr[l] = 1;
bool vis[n+1];
memset(vis, false, sizeof vis);
vis[1] = true;
if(l + 1 <= n){
int d = query(l, l+1);
arr[l+1] = d+1;
vis[arr[l+1]]=true;
answer(l+1, arr[l+1]);
}
for(int j = l + 2; j <= n; j++){
int d = query(j-1, j);
if(arr[j-1] - d < 1 || vis[arr[j-1]-d]){
vis[arr[j-1]+d] = true;
arr[j] = arr[j-1] + d;
answer(j, arr[j]);
}
else if(arr[j-1]+d > n || vis[arr[j-1]+d]){
vis[arr[j-1]-d] = true;
arr[j] = arr[j-1] - d;
answer(j, arr[j]);
}
else{
int l = query(j-2, j);
if(l == max(d, abs(arr[j-1] - arr[j-2]))){
if(arr[j-2] < arr[j-1]){
vis[arr[j-1] - d] = true;
arr[j] = arr[j-1]-d;
answer(j, arr[j]);
}
else{
vis[arr[j-1]+d] = true;
arr[j] = arr[j-1]+d;
answer(j, arr[j]);
}
}
else{
if(arr[j-2] < arr[j-1]){
vis[arr[j-1] + d] = true;
arr[j] = arr[j-1]+d;
answer(j, arr[j]);
}
else{
vis[arr[j-1]-d] = true;
arr[j] = arr[j-1]-d;
answer(j, arr[j]);
}
}
}
}
if(l-1 > 0){
int d = query(l-1, l);
arr[l-1] = d + 1;
vis[arr[l-1]] = true;
answer(l-1, arr[l-1]);
}
for(int i = l - 2; i >= 1; i--){
int d=query(i,i+1);
if(arr[i+1]-d<1||vis[arr[i+1]-d]){
arr[i] = arr[i+1] + d;
vis[arr[i]] = true;
answer(i, arr[i]);
}
else if(arr[i+1]+d>n||vis[arr[i+1]+d]){
arr[i] = arr[i+1] - d;
vis[arr[i]] = true;
answer(i, arr[i]);
}
else
{
int l=query(i,i+2);
if(l==max(d,abs(arr[i+1]-arr[i+2])))
{
if(arr[i+2]<arr[i+1]){
arr[i] = arr[i+1] - d;
vis[arr[i]] = true;
answer(i, arr[i]);
}
else{
arr[i] = arr[i+1] + d;
vis[arr[i]] = true;
answer(i, arr[i]);
}
}
else
{
if(arr[i+2]<arr[i+1]){
arr[i] = arr[i+1] + d;
vis[arr[i]] = true;
answer(i, arr[i]);
}
else{
arr[i] = arr[i+1] - d;
vis[arr[i]] = true;
answer(i, arr[i]);
}
}
}
}
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 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 |
1 ms |
208 KB |
Output is correct |
| 9 |
Correct |
1 ms |
208 KB |
Output is correct |
| 10 |
Correct |
2 ms |
208 KB |
Output is correct |
| 11 |
Correct |
1 ms |
208 KB |
Output is correct |
| 12 |
Correct |
2 ms |
208 KB |
Output is correct |
| 13 |
Correct |
1 ms |
208 KB |
Output is correct |
| 14 |
Correct |
1 ms |
208 KB |
Output is correct |
| 15 |
Correct |
1 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 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 |
1 ms |
208 KB |
Output is correct |
| 9 |
Correct |
1 ms |
208 KB |
Output is correct |
| 10 |
Correct |
2 ms |
208 KB |
Output is correct |
| 11 |
Correct |
1 ms |
208 KB |
Output is correct |
| 12 |
Correct |
2 ms |
208 KB |
Output is correct |
| 13 |
Correct |
1 ms |
208 KB |
Output is correct |
| 14 |
Correct |
1 ms |
208 KB |
Output is correct |
| 15 |
Correct |
1 ms |
208 KB |
Output is correct |
| 16 |
Correct |
3 ms |
208 KB |
Output is correct |
| 17 |
Correct |
5 ms |
208 KB |
Output is correct |
| 18 |
Correct |
7 ms |
208 KB |
Output is correct |
| 19 |
Correct |
10 ms |
208 KB |
Output is correct |
| 20 |
Correct |
12 ms |
208 KB |
Output is correct |
| 21 |
Correct |
12 ms |
208 KB |
Output is correct |
| 22 |
Correct |
9 ms |
208 KB |
Output is correct |
| 23 |
Correct |
9 ms |
208 KB |
Output is correct |
| 24 |
Correct |
9 ms |
208 KB |
Output is correct |
| 25 |
Correct |
9 ms |
208 KB |
Output is correct |
| 26 |
Correct |
8 ms |
208 KB |
Output is correct |
| 27 |
Correct |
12 ms |
208 KB |
Output is correct |
| 28 |
Correct |
12 ms |
208 KB |
Output is correct |
| 29 |
Correct |
8 ms |
208 KB |
Output is correct |
| 30 |
Correct |
11 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 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 |
1 ms |
208 KB |
Output is correct |
| 9 |
Correct |
1 ms |
208 KB |
Output is correct |
| 10 |
Correct |
2 ms |
208 KB |
Output is correct |
| 11 |
Correct |
1 ms |
208 KB |
Output is correct |
| 12 |
Correct |
2 ms |
208 KB |
Output is correct |
| 13 |
Correct |
1 ms |
208 KB |
Output is correct |
| 14 |
Correct |
1 ms |
208 KB |
Output is correct |
| 15 |
Correct |
1 ms |
208 KB |
Output is correct |
| 16 |
Correct |
3 ms |
208 KB |
Output is correct |
| 17 |
Correct |
5 ms |
208 KB |
Output is correct |
| 18 |
Correct |
7 ms |
208 KB |
Output is correct |
| 19 |
Correct |
10 ms |
208 KB |
Output is correct |
| 20 |
Correct |
12 ms |
208 KB |
Output is correct |
| 21 |
Correct |
12 ms |
208 KB |
Output is correct |
| 22 |
Correct |
9 ms |
208 KB |
Output is correct |
| 23 |
Correct |
9 ms |
208 KB |
Output is correct |
| 24 |
Correct |
9 ms |
208 KB |
Output is correct |
| 25 |
Correct |
9 ms |
208 KB |
Output is correct |
| 26 |
Correct |
8 ms |
208 KB |
Output is correct |
| 27 |
Correct |
12 ms |
208 KB |
Output is correct |
| 28 |
Correct |
12 ms |
208 KB |
Output is correct |
| 29 |
Correct |
8 ms |
208 KB |
Output is correct |
| 30 |
Correct |
11 ms |
208 KB |
Output is correct |
| 31 |
Correct |
16 ms |
208 KB |
Output is correct |
| 32 |
Correct |
31 ms |
208 KB |
Output is correct |
| 33 |
Correct |
47 ms |
304 KB |
Output is correct |
| 34 |
Correct |
53 ms |
208 KB |
Output is correct |
| 35 |
Correct |
48 ms |
296 KB |
Output is correct |
| 36 |
Correct |
43 ms |
208 KB |
Output is correct |
| 37 |
Correct |
43 ms |
208 KB |
Output is correct |
| 38 |
Correct |
31 ms |
208 KB |
Output is correct |
| 39 |
Correct |
25 ms |
208 KB |
Output is correct |
| 40 |
Correct |
46 ms |
208 KB |
Output is correct |
| 41 |
Correct |
53 ms |
208 KB |
Output is correct |
| 42 |
Correct |
32 ms |
208 KB |
Output is correct |
| 43 |
Correct |
42 ms |
208 KB |
Output is correct |
| 44 |
Correct |
38 ms |
208 KB |
Output is correct |
| 45 |
Correct |
45 ms |
208 KB |
Output is correct |
| 46 |
Correct |
41 ms |
208 KB |
Output is correct |
| 47 |
Correct |
38 ms |
296 KB |
Output is correct |
| 48 |
Correct |
49 ms |
208 KB |
Output is correct |
| 49 |
Correct |
38 ms |
208 KB |
Output is correct |
| 50 |
Correct |
43 ms |
208 KB |
Output is correct |
| 51 |
Correct |
56 ms |
208 KB |
Output is correct |
| 52 |
Correct |
52 ms |
208 KB |
Output is correct |
| 53 |
Correct |
39 ms |
208 KB |
Output is correct |
| 54 |
Correct |
50 ms |
208 KB |
Output is correct |
| 55 |
Correct |
24 ms |
300 KB |
Output is correct |
| 56 |
Correct |
60 ms |
208 KB |
Output is correct |
| 57 |
Correct |
53 ms |
208 KB |
Output is correct |
| 58 |
Correct |
39 ms |
208 KB |
Output is correct |
| 59 |
Correct |
48 ms |
208 KB |
Output is correct |
| 60 |
Correct |
28 ms |
208 KB |
Output is correct |
