#include "xylophone.h"
#include<bits/stdc++.h>
#define ll long long
using namespace std;
bool fix[200005];
ll ans[200005],ind;
void solve(int n) {
ll l = 2,r = n,mid = 0;
while(l <= r){
mid = (l + r) / 2;
ll curans = query(1,mid);
// cout << 1 << " " << mid << " " << curans << endl;
if(curans != n - 1){
l = mid + 1;
}
else {
ind = mid;
r = mid - 1;
}
}
ans[ind] = n;
fix[n] = 1;
if(ind != n){
ans[ind + 1] = n - query(ind,ind + 1);
}
for(int i=ind+1; i<=n; i++){
fix[ans[i]] = 1;
if(i == n){
break;
}
ll k1 = query(i,i + 1);
if(ans[i] + k1 >= n || fix[ans[i] + k1]){
ans[i + 1] = ans[i] - k1;
continue;
}
if(ans[i] - k1 <= 0 || fix[ans[i] - k1]){
ans[i + 1] = ans[i] + k1;
continue;
}
ll k2 = query(i - 1,i + 1);
if(ans[i - 1] < ans[i]){
if(k2 == k1 + ans[i] - ans[i - 1]){
ans[i + 1] = ans[i] + k1;
}
else {
ans[i + 1] = ans[i] - k1;
}
}
else {
if(k2 == k1 + ans[i - 1] - ans[i]){
ans[i + 1] = ans[i] - k1;
}
else {
ans[i + 1] = ans[i] + k1;
}
}
}
if(ind > 1){
ans[ind - 1] = n - query(ind-1,ind);
}
for(int i=ind - 1; i>=1; i--){
fix[ans[i]] = 1;
// cout << i << " " << ans[i] << endl;
if(i == 1){
break;
}
ll k1 = query(i - 1,i);
if(ans[i] + k1 >= n || fix[ans[i] + k1]){
ans[i - 1] = ans[i] - k1;
continue;
}
if(ans[i] - k1 <= 0 || (fix[ans[i] - k1] && ans[i] - k1 >= 0)){
ans[i - 1] = ans[i] + k1;
continue;
}
// cout << "ET\n";
ll k2 = query(i - 1,i + 1);
if(ans[i + 1] < ans[i]){
if(k2 == k1 + ans[i] - ans[i + 1]){
ans[i - 1] = ans[i] + k1;
}
else {
ans[i - 1] = ans[i] - k1;
}
}
else {
if(k2 == k1 + ans[i + 1] - ans[i]){
ans[i - 1] = ans[i] - k1;
}
else {
ans[i - 1] = ans[i] + k1;
}
}
}
for(int i=1; i<=n; i++){
// cout << ans[i] << endl;
answer(i,ans[i]);
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
3 ms |
384 KB |
Output is correct |
3 |
Correct |
3 ms |
256 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
3 ms |
412 KB |
Output is correct |
6 |
Correct |
3 ms |
408 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
4 ms |
384 KB |
Output is correct |
9 |
Correct |
3 ms |
256 KB |
Output is correct |
10 |
Correct |
2 ms |
256 KB |
Output is correct |
11 |
Correct |
4 ms |
384 KB |
Output is correct |
12 |
Correct |
4 ms |
384 KB |
Output is correct |
13 |
Correct |
5 ms |
384 KB |
Output is correct |
14 |
Correct |
5 ms |
256 KB |
Output is correct |
15 |
Correct |
5 ms |
384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
3 ms |
384 KB |
Output is correct |
3 |
Correct |
3 ms |
256 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
3 ms |
412 KB |
Output is correct |
6 |
Correct |
3 ms |
408 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
4 ms |
384 KB |
Output is correct |
9 |
Correct |
3 ms |
256 KB |
Output is correct |
10 |
Correct |
2 ms |
256 KB |
Output is correct |
11 |
Correct |
4 ms |
384 KB |
Output is correct |
12 |
Correct |
4 ms |
384 KB |
Output is correct |
13 |
Correct |
5 ms |
384 KB |
Output is correct |
14 |
Correct |
5 ms |
256 KB |
Output is correct |
15 |
Correct |
5 ms |
384 KB |
Output is correct |
16 |
Correct |
4 ms |
324 KB |
Output is correct |
17 |
Correct |
3 ms |
412 KB |
Output is correct |
18 |
Correct |
14 ms |
256 KB |
Output is correct |
19 |
Correct |
12 ms |
384 KB |
Output is correct |
20 |
Correct |
14 ms |
384 KB |
Output is correct |
21 |
Correct |
14 ms |
256 KB |
Output is correct |
22 |
Correct |
15 ms |
384 KB |
Output is correct |
23 |
Correct |
12 ms |
304 KB |
Output is correct |
24 |
Correct |
7 ms |
428 KB |
Output is correct |
25 |
Correct |
9 ms |
404 KB |
Output is correct |
26 |
Correct |
13 ms |
384 KB |
Output is correct |
27 |
Correct |
15 ms |
328 KB |
Output is correct |
28 |
Correct |
7 ms |
412 KB |
Output is correct |
29 |
Correct |
12 ms |
256 KB |
Output is correct |
30 |
Correct |
8 ms |
416 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
3 ms |
384 KB |
Output is correct |
3 |
Correct |
3 ms |
256 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
3 ms |
412 KB |
Output is correct |
6 |
Correct |
3 ms |
408 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
4 ms |
384 KB |
Output is correct |
9 |
Correct |
3 ms |
256 KB |
Output is correct |
10 |
Correct |
2 ms |
256 KB |
Output is correct |
11 |
Correct |
4 ms |
384 KB |
Output is correct |
12 |
Correct |
4 ms |
384 KB |
Output is correct |
13 |
Correct |
5 ms |
384 KB |
Output is correct |
14 |
Correct |
5 ms |
256 KB |
Output is correct |
15 |
Correct |
5 ms |
384 KB |
Output is correct |
16 |
Correct |
4 ms |
324 KB |
Output is correct |
17 |
Correct |
3 ms |
412 KB |
Output is correct |
18 |
Correct |
14 ms |
256 KB |
Output is correct |
19 |
Correct |
12 ms |
384 KB |
Output is correct |
20 |
Correct |
14 ms |
384 KB |
Output is correct |
21 |
Correct |
14 ms |
256 KB |
Output is correct |
22 |
Correct |
15 ms |
384 KB |
Output is correct |
23 |
Correct |
12 ms |
304 KB |
Output is correct |
24 |
Correct |
7 ms |
428 KB |
Output is correct |
25 |
Correct |
9 ms |
404 KB |
Output is correct |
26 |
Correct |
13 ms |
384 KB |
Output is correct |
27 |
Correct |
15 ms |
328 KB |
Output is correct |
28 |
Correct |
7 ms |
412 KB |
Output is correct |
29 |
Correct |
12 ms |
256 KB |
Output is correct |
30 |
Correct |
8 ms |
416 KB |
Output is correct |
31 |
Correct |
32 ms |
384 KB |
Output is correct |
32 |
Correct |
35 ms |
384 KB |
Output is correct |
33 |
Correct |
52 ms |
368 KB |
Output is correct |
34 |
Correct |
68 ms |
344 KB |
Output is correct |
35 |
Correct |
54 ms |
456 KB |
Output is correct |
36 |
Correct |
47 ms |
384 KB |
Output is correct |
37 |
Correct |
51 ms |
384 KB |
Output is correct |
38 |
Correct |
28 ms |
352 KB |
Output is correct |
39 |
Correct |
65 ms |
444 KB |
Output is correct |
40 |
Correct |
64 ms |
380 KB |
Output is correct |
41 |
Correct |
52 ms |
324 KB |
Output is correct |
42 |
Correct |
24 ms |
324 KB |
Output is correct |
43 |
Correct |
49 ms |
452 KB |
Output is correct |
44 |
Correct |
37 ms |
344 KB |
Output is correct |
45 |
Correct |
62 ms |
376 KB |
Output is correct |
46 |
Correct |
64 ms |
384 KB |
Output is correct |
47 |
Correct |
64 ms |
376 KB |
Output is correct |
48 |
Correct |
59 ms |
424 KB |
Output is correct |
49 |
Correct |
49 ms |
376 KB |
Output is correct |
50 |
Correct |
65 ms |
376 KB |
Output is correct |
51 |
Correct |
72 ms |
432 KB |
Output is correct |
52 |
Correct |
27 ms |
332 KB |
Output is correct |
53 |
Correct |
59 ms |
396 KB |
Output is correct |
54 |
Correct |
45 ms |
448 KB |
Output is correct |
55 |
Correct |
67 ms |
440 KB |
Output is correct |
56 |
Correct |
48 ms |
384 KB |
Output is correct |
57 |
Correct |
71 ms |
556 KB |
Output is correct |
58 |
Correct |
68 ms |
388 KB |
Output is correct |
59 |
Correct |
65 ms |
256 KB |
Output is correct |
60 |
Correct |
73 ms |
412 KB |
Output is correct |