#include<bits/stdc++.h>
#include <cstdio>
#include <cstdlib>
#include "xylophone.h"
using namespace std;
static const int N_MAX = 5000;
static const int Q_MAX = 10100;
static int N;
static int A[N_MAX];
static bool used[N_MAX];
static int query_c;
static int answer_c;
void solve(int N) {
vector<int> v(N+1, 0);
int l = 2, r = N;
int rez = -1;
if(query(1, N-1)!=N-1) rez = N;
else{
while(l<=r){
int mid = (l+r)/2;
if(query(1, mid)!=N-1){
l = mid+1;
} else{
rez = mid;
r = mid-1;
}
}
}
answer(rez, N);
v[rez] = N;
if(rez!=1){
int x = N-query(rez-1, rez);
answer(rez-1, x);
v[rez-1] = x;
}
if(rez!=N){
int x = N-query(rez, rez+1);
answer(rez+1, x);
v[rez+1] = x;
}
for(int i = rez-2;i>=1;i--){
int d1 = query(i, i+1);
if(d1>v[i+1]){
v[i] = v[i+1]+d1;
answer(i, v[i]);
continue;
}
if(v[i+1]+d1>=N){
v[i] = v[i+1]-d1;
answer(i, v[i]);
continue;
}
int d2 = query(i, i+2);
int ans = 0;
if(v[i+1]>v[i+2]){
if(d1+v[i+1]-v[i+2]==d2) ans = v[i+1]+d1;
else ans = v[i+1]-d1;
} else{
if(d1+v[i+2]-v[i+1]==d2) ans = v[i+1]-d1;
else ans = v[i+1]+d1;
}
answer(i, ans);
v[i] = ans;
}
for(int i = rez+2;i<=N;i++){
int d1 = query(i-1, i);
if(d1>v[i-1]){
v[i] = v[i-1]+d1;
answer(i, v[i]);
continue;
}
if(v[i-1]+d1>=N){
v[i] = v[i-1]-d1;
answer(i, v[i]);
continue;
}
int d2 = query(i-2, i);
int ans = 0;
if(v[i-1]>v[i-2]){
if(d1+v[i-1]-v[i-2]==d2) ans = v[i-1]+d1;
else ans = v[i-1]-d1;
} else{
if(d1+v[i-2]-v[i-1]==d2) ans = v[i-1]-d1;
else ans = v[i-1]+d1;
}
answer(i, ans);
v[i] = ans;
}
}
Compilation message
xylophone.cpp:14:12: warning: 'answer_c' defined but not used [-Wunused-variable]
14 | static int answer_c;
| ^~~~~~~~
xylophone.cpp:13:12: warning: 'query_c' defined but not used [-Wunused-variable]
13 | static int query_c;
| ^~~~~~~
xylophone.cpp:12:13: warning: 'used' defined but not used [-Wunused-variable]
12 | static bool used[N_MAX];
| ^~~~
xylophone.cpp:11:12: warning: 'A' defined but not used [-Wunused-variable]
11 | static int A[N_MAX];
| ^
xylophone.cpp:10:12: warning: 'N' defined but not used [-Wunused-variable]
10 | static int N;
| ^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 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 |
344 KB |
Output is correct |
| 7 |
Correct |
1 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 |
1 ms |
344 KB |
Output is correct |
| 11 |
Correct |
1 ms |
596 KB |
Output is correct |
| 12 |
Correct |
1 ms |
344 KB |
Output is correct |
| 13 |
Correct |
1 ms |
344 KB |
Output is correct |
| 14 |
Correct |
1 ms |
344 KB |
Output is correct |
| 15 |
Correct |
1 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 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 |
344 KB |
Output is correct |
| 7 |
Correct |
1 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 |
1 ms |
344 KB |
Output is correct |
| 11 |
Correct |
1 ms |
596 KB |
Output is correct |
| 12 |
Correct |
1 ms |
344 KB |
Output is correct |
| 13 |
Correct |
1 ms |
344 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 |
6 ms |
344 KB |
Output is correct |
| 18 |
Correct |
6 ms |
344 KB |
Output is correct |
| 19 |
Correct |
7 ms |
344 KB |
Output is correct |
| 20 |
Correct |
9 ms |
344 KB |
Output is correct |
| 21 |
Correct |
8 ms |
344 KB |
Output is correct |
| 22 |
Correct |
7 ms |
344 KB |
Output is correct |
| 23 |
Correct |
11 ms |
344 KB |
Output is correct |
| 24 |
Correct |
6 ms |
344 KB |
Output is correct |
| 25 |
Correct |
7 ms |
344 KB |
Output is correct |
| 26 |
Correct |
9 ms |
344 KB |
Output is correct |
| 27 |
Correct |
9 ms |
344 KB |
Output is correct |
| 28 |
Correct |
7 ms |
344 KB |
Output is correct |
| 29 |
Correct |
7 ms |
344 KB |
Output is correct |
| 30 |
Correct |
7 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 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 |
344 KB |
Output is correct |
| 7 |
Correct |
1 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 |
1 ms |
344 KB |
Output is correct |
| 11 |
Correct |
1 ms |
596 KB |
Output is correct |
| 12 |
Correct |
1 ms |
344 KB |
Output is correct |
| 13 |
Correct |
1 ms |
344 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 |
6 ms |
344 KB |
Output is correct |
| 18 |
Correct |
6 ms |
344 KB |
Output is correct |
| 19 |
Correct |
7 ms |
344 KB |
Output is correct |
| 20 |
Correct |
9 ms |
344 KB |
Output is correct |
| 21 |
Correct |
8 ms |
344 KB |
Output is correct |
| 22 |
Correct |
7 ms |
344 KB |
Output is correct |
| 23 |
Correct |
11 ms |
344 KB |
Output is correct |
| 24 |
Correct |
6 ms |
344 KB |
Output is correct |
| 25 |
Correct |
7 ms |
344 KB |
Output is correct |
| 26 |
Correct |
9 ms |
344 KB |
Output is correct |
| 27 |
Correct |
9 ms |
344 KB |
Output is correct |
| 28 |
Correct |
7 ms |
344 KB |
Output is correct |
| 29 |
Correct |
7 ms |
344 KB |
Output is correct |
| 30 |
Correct |
7 ms |
344 KB |
Output is correct |
| 31 |
Correct |
16 ms |
344 KB |
Output is correct |
| 32 |
Correct |
24 ms |
344 KB |
Output is correct |
| 33 |
Correct |
39 ms |
344 KB |
Output is correct |
| 34 |
Correct |
37 ms |
344 KB |
Output is correct |
| 35 |
Correct |
43 ms |
344 KB |
Output is correct |
| 36 |
Correct |
55 ms |
344 KB |
Output is correct |
| 37 |
Correct |
35 ms |
344 KB |
Output is correct |
| 38 |
Correct |
37 ms |
344 KB |
Output is correct |
| 39 |
Correct |
55 ms |
344 KB |
Output is correct |
| 40 |
Correct |
50 ms |
344 KB |
Output is correct |
| 41 |
Correct |
28 ms |
344 KB |
Output is correct |
| 42 |
Correct |
61 ms |
344 KB |
Output is correct |
| 43 |
Correct |
38 ms |
344 KB |
Output is correct |
| 44 |
Correct |
46 ms |
344 KB |
Output is correct |
| 45 |
Correct |
63 ms |
344 KB |
Output is correct |
| 46 |
Correct |
58 ms |
344 KB |
Output is correct |
| 47 |
Correct |
57 ms |
344 KB |
Output is correct |
| 48 |
Correct |
52 ms |
340 KB |
Output is correct |
| 49 |
Correct |
52 ms |
344 KB |
Output is correct |
| 50 |
Correct |
46 ms |
344 KB |
Output is correct |
| 51 |
Correct |
48 ms |
344 KB |
Output is correct |
| 52 |
Correct |
39 ms |
344 KB |
Output is correct |
| 53 |
Correct |
45 ms |
344 KB |
Output is correct |
| 54 |
Correct |
53 ms |
344 KB |
Output is correct |
| 55 |
Correct |
34 ms |
344 KB |
Output is correct |
| 56 |
Correct |
50 ms |
344 KB |
Output is correct |
| 57 |
Correct |
41 ms |
344 KB |
Output is correct |
| 58 |
Correct |
47 ms |
344 KB |
Output is correct |
| 59 |
Correct |
41 ms |
344 KB |
Output is correct |
| 60 |
Correct |
42 ms |
344 KB |
Output is correct |
