#include "xylophone.h"
#include <bits/stdc++.h>
using namespace std;
#define maxn 5010
bool taken[maxn];
int ans[maxn];
void solve(int N) {
//call query on range s to t
//call answer setting index i to a
fill(taken, taken+maxn, false);
int small = 1;
for (int inc = (1 << 14); inc > 0; inc /= 2) {
if (small + inc > N) continue;
int nx = small + inc;
int qu = query(nx, N);
if (qu == N-1) {
//did not go too far
small = nx;
}
}
// cout << "small: " << small << endl;
ans[small] = 1;
taken[1] = true;
if (small != 1) {
ans[small-1] = query(small-1, small)+1;
taken[ans[small-1]] = true;
}
if (small != N) {
ans[small+1] = query(small, small+1)+1;
taken[ans[small-1]] = true;
}
for (int i = small-2; i >= 1; i--) {
int nx = i+1;
int nx2 = i+2;
int q1 = query(i, nx); //reverse inputs for other direction
int op1 = ans[nx] + q1; //is greater
int op2 = ans[nx] - q1; //is less
if (taken[op1] || op1 < 1 || op1 > N) {
ans[i] = op2;
taken[op2] = true;
continue;
}
if (taken[op2] || op2 < 1 || op2 > N) {
ans[i] = op1;
taken[op1] = true;
continue;
}
int q2 = query(i, nx2);
if (q2 == abs(ans[nx]-ans[nx2])) {
//nothing changed (i am between them)
if (ans[nx2] > ans[nx]) {
ans[i] = op1;
taken[op1] = true;
continue;
}
else {
ans[i] = op2;
taken[op2] = true;
continue;
}
}
else {
int mx = 0;
mx = max(mx, abs(ans[nx2]-ans[nx]));
mx = max(mx, abs(ans[nx]-op1));
mx = max(mx, abs(ans[nx2]-op1));
//something happened
if (mx == q2) {
ans[i] = op1;
taken[op1] = true;
}
else {
ans[i] = op2;
taken[op2] = true;
}
}
}
for (int i = small+2; i <= N; i++) {
int nx = i-1;
int nx2 = i-2;
int q1 = query(nx, i); //reverse inputs for other direction
int op1 = ans[nx] + q1; //is greater
int op2 = ans[nx] - q1; //is less
if (taken[op1] || op1 < 1 || op1 > N) {
ans[i] = op2;
taken[op2] = true;
continue;
}
if (taken[op2] || op2 < 1 || op2 > N) {
ans[i] = op1;
taken[op1] = true;
continue;
}
int q2 = query(nx2, i);
if (q2 == abs(ans[nx]-ans[nx2])) {
//nothing changed (i am between them)
if (ans[nx2] > ans[nx]) {
ans[i] = op1;
taken[op1] = true;
continue;
}
else {
ans[i] = op2;
taken[op2] = true;
continue;
}
}
else {
int mx = 0;
mx = max(mx, abs(ans[nx2]-ans[nx]));
mx = max(mx, abs(ans[nx]-op1));
mx = max(mx, abs(ans[nx2]-op1));
//something happened
if (mx == q2) {
ans[i] = op1;
taken[op1] = true;
}
else {
ans[i] = op2;
taken[op2] = true;
}
}
}
for (int i = 1; i <= N; i++) {
// cout << "answering: " << i << ": " << ans[i] << endl;
answer(i, ans[i]);
}
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
440 KB |
Output is correct |
| 3 |
Correct |
3 ms |
440 KB |
Output is correct |
| 4 |
Correct |
4 ms |
440 KB |
Output is correct |
| 5 |
Correct |
3 ms |
448 KB |
Output is correct |
| 6 |
Correct |
5 ms |
464 KB |
Output is correct |
| 7 |
Correct |
5 ms |
464 KB |
Output is correct |
| 8 |
Correct |
4 ms |
464 KB |
Output is correct |
| 9 |
Correct |
4 ms |
464 KB |
Output is correct |
| 10 |
Correct |
4 ms |
512 KB |
Output is correct |
| 11 |
Correct |
3 ms |
512 KB |
Output is correct |
| 12 |
Correct |
4 ms |
512 KB |
Output is correct |
| 13 |
Correct |
5 ms |
512 KB |
Output is correct |
| 14 |
Correct |
4 ms |
512 KB |
Output is correct |
| 15 |
Correct |
4 ms |
544 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
440 KB |
Output is correct |
| 3 |
Correct |
3 ms |
440 KB |
Output is correct |
| 4 |
Correct |
4 ms |
440 KB |
Output is correct |
| 5 |
Correct |
3 ms |
448 KB |
Output is correct |
| 6 |
Correct |
5 ms |
464 KB |
Output is correct |
| 7 |
Correct |
5 ms |
464 KB |
Output is correct |
| 8 |
Correct |
4 ms |
464 KB |
Output is correct |
| 9 |
Correct |
4 ms |
464 KB |
Output is correct |
| 10 |
Correct |
4 ms |
512 KB |
Output is correct |
| 11 |
Correct |
3 ms |
512 KB |
Output is correct |
| 12 |
Correct |
4 ms |
512 KB |
Output is correct |
| 13 |
Correct |
5 ms |
512 KB |
Output is correct |
| 14 |
Correct |
4 ms |
512 KB |
Output is correct |
| 15 |
Correct |
4 ms |
544 KB |
Output is correct |
| 16 |
Correct |
3 ms |
548 KB |
Output is correct |
| 17 |
Correct |
8 ms |
548 KB |
Output is correct |
| 18 |
Correct |
13 ms |
548 KB |
Output is correct |
| 19 |
Correct |
16 ms |
572 KB |
Output is correct |
| 20 |
Correct |
19 ms |
572 KB |
Output is correct |
| 21 |
Correct |
17 ms |
700 KB |
Output is correct |
| 22 |
Correct |
18 ms |
700 KB |
Output is correct |
| 23 |
Correct |
9 ms |
700 KB |
Output is correct |
| 24 |
Correct |
11 ms |
700 KB |
Output is correct |
| 25 |
Correct |
16 ms |
704 KB |
Output is correct |
| 26 |
Correct |
12 ms |
704 KB |
Output is correct |
| 27 |
Correct |
9 ms |
704 KB |
Output is correct |
| 28 |
Correct |
8 ms |
704 KB |
Output is correct |
| 29 |
Correct |
14 ms |
704 KB |
Output is correct |
| 30 |
Correct |
14 ms |
704 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
440 KB |
Output is correct |
| 3 |
Correct |
3 ms |
440 KB |
Output is correct |
| 4 |
Correct |
4 ms |
440 KB |
Output is correct |
| 5 |
Correct |
3 ms |
448 KB |
Output is correct |
| 6 |
Correct |
5 ms |
464 KB |
Output is correct |
| 7 |
Correct |
5 ms |
464 KB |
Output is correct |
| 8 |
Correct |
4 ms |
464 KB |
Output is correct |
| 9 |
Correct |
4 ms |
464 KB |
Output is correct |
| 10 |
Correct |
4 ms |
512 KB |
Output is correct |
| 11 |
Correct |
3 ms |
512 KB |
Output is correct |
| 12 |
Correct |
4 ms |
512 KB |
Output is correct |
| 13 |
Correct |
5 ms |
512 KB |
Output is correct |
| 14 |
Correct |
4 ms |
512 KB |
Output is correct |
| 15 |
Correct |
4 ms |
544 KB |
Output is correct |
| 16 |
Correct |
3 ms |
548 KB |
Output is correct |
| 17 |
Correct |
8 ms |
548 KB |
Output is correct |
| 18 |
Correct |
13 ms |
548 KB |
Output is correct |
| 19 |
Correct |
16 ms |
572 KB |
Output is correct |
| 20 |
Correct |
19 ms |
572 KB |
Output is correct |
| 21 |
Correct |
17 ms |
700 KB |
Output is correct |
| 22 |
Correct |
18 ms |
700 KB |
Output is correct |
| 23 |
Correct |
9 ms |
700 KB |
Output is correct |
| 24 |
Correct |
11 ms |
700 KB |
Output is correct |
| 25 |
Correct |
16 ms |
704 KB |
Output is correct |
| 26 |
Correct |
12 ms |
704 KB |
Output is correct |
| 27 |
Correct |
9 ms |
704 KB |
Output is correct |
| 28 |
Correct |
8 ms |
704 KB |
Output is correct |
| 29 |
Correct |
14 ms |
704 KB |
Output is correct |
| 30 |
Correct |
14 ms |
704 KB |
Output is correct |
| 31 |
Correct |
28 ms |
704 KB |
Output is correct |
| 32 |
Correct |
36 ms |
704 KB |
Output is correct |
| 33 |
Correct |
30 ms |
704 KB |
Output is correct |
| 34 |
Correct |
53 ms |
704 KB |
Output is correct |
| 35 |
Correct |
62 ms |
704 KB |
Output is correct |
| 36 |
Correct |
49 ms |
712 KB |
Output is correct |
| 37 |
Correct |
41 ms |
712 KB |
Output is correct |
| 38 |
Correct |
44 ms |
712 KB |
Output is correct |
| 39 |
Correct |
75 ms |
712 KB |
Output is correct |
| 40 |
Correct |
71 ms |
712 KB |
Output is correct |
| 41 |
Correct |
81 ms |
712 KB |
Output is correct |
| 42 |
Correct |
34 ms |
712 KB |
Output is correct |
| 43 |
Correct |
53 ms |
712 KB |
Output is correct |
| 44 |
Correct |
28 ms |
712 KB |
Output is correct |
| 45 |
Correct |
85 ms |
712 KB |
Output is correct |
| 46 |
Correct |
80 ms |
712 KB |
Output is correct |
| 47 |
Correct |
33 ms |
712 KB |
Output is correct |
| 48 |
Correct |
85 ms |
712 KB |
Output is correct |
| 49 |
Correct |
71 ms |
712 KB |
Output is correct |
| 50 |
Correct |
31 ms |
712 KB |
Output is correct |
| 51 |
Correct |
49 ms |
712 KB |
Output is correct |
| 52 |
Correct |
60 ms |
712 KB |
Output is correct |
| 53 |
Correct |
49 ms |
712 KB |
Output is correct |
| 54 |
Correct |
55 ms |
712 KB |
Output is correct |
| 55 |
Correct |
64 ms |
712 KB |
Output is correct |
| 56 |
Correct |
52 ms |
712 KB |
Output is correct |
| 57 |
Correct |
27 ms |
712 KB |
Output is correct |
| 58 |
Correct |
46 ms |
712 KB |
Output is correct |
| 59 |
Correct |
46 ms |
724 KB |
Output is correct |
| 60 |
Correct |
75 ms |
724 KB |
Output is correct |
