oj.uz

Submission #996091

# Submission time Handle Problem Language Result Execution time Memory
996091 2024-06-10T07:55:57 Z khanhtb Xylophone (JOI18_xylophone) C++17
100 / 100
 114 ms 956 KB 
#include<bits/stdc++.h>
#include "xylophone.h"
#define ll long long
#define ull unsigned long long
#define ld long double
#define pb push_back
#define pf push_front
#define vi vector<ll>
#define vii vector<vi>
#define pint pair<int,int>
#define vpll vector<pll>
#define aint(a) a.begin(), a.end()
#define fi first
#define se second
using namespace std;
const ll mod = 1e9+7;
const ll inf = 1e18;
const ll base = 31;
const ll blocksz = 320;
const ll N = 5e3+8;
const ll buff = 1e5+1;
int a[N],dist[N][2];
bool pos[N];
bool check(int n){
    fill(pos,pos+n+1,0);
    bool meetn = 0;
    for(int i = 1; i <= n; i++){
        if(a[i] <= 0 || a[i] > n) return 0;
        if(a[i] == 1 && meetn) return 0;
        pos[a[i]] = 1;
        if(a[i] == n) meetn = 1; 
    }
    for(ll i = 1; i <= n; i++) if(!pos[i]) return 0;
    return 1;
}
void solve(int n){
    for(int i = 2; i <= n; i++){
        if(i > 1) dist[i][0] = query(i-1,i);
        if(i > 2) dist[i][1] = query(i-2,i);
    }
    for(int x = 1; x <= n; x++){
        a[1] = x;
        a[2] = x+dist[2][0];
        for(int i = 3; i <= n; i++){
            if(a[i-2] > a[i-1]){
                if (a[i-2]-a[i-1]+dist[i][0] == dist[i][1]) a[i] = a[i-1]-dist[i][0];
                else a[i] = a[i-1]+dist[i][0];
            }
            else{
                if (a[i-1]-a[i-2]+dist[i][0] == dist[i][1]) a[i] = a[i-1]+dist[i][0];
                else a[i] = a[i-1]-dist[i][0];
            }
        }
        if(check(n)) break;
        a[1] = x;
        a[2] = x-dist[2][0];
        for(int i = 3; i <= n; i++){
            if(a[i-2] > a[i-1]){
                if (a[i-2]-a[i-1]+dist[i][0] == dist[i][1]) a[i] = a[i-1]-dist[i][0];
                else a[i] = a[i-1]+dist[i][0];
            }
            else{
                if (a[i-1]-a[i-2]+dist[i][0] == dist[i][1]) a[i] = a[i-1]+dist[i][0];
                else a[i] = a[i-1]-dist[i][0];
            }
        }
        if(check(n)) break;
    }
    for(int i = 1; i <= n; i++) answer(i,a[i]);
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 2 ms 344 KB Output is correct
6 Correct 2 ms 344 KB Output is correct
7 Correct 2 ms 448 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 2 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 2 ms 444 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct

Subtask #2
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 2 ms 344 KB Output is correct
6 Correct 2 ms 344 KB Output is correct
7 Correct 2 ms 448 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 2 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 2 ms 444 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 3 ms 344 KB Output is correct
18 Correct 12 ms 344 KB Output is correct
19 Correct 9 ms 344 KB Output is correct
20 Correct 11 ms 448 KB Output is correct
21 Correct 8 ms 340 KB Output is correct
22 Correct 11 ms 444 KB Output is correct
23 Correct 9 ms 344 KB Output is correct
24 Correct 14 ms 456 KB Output is correct
25 Correct 9 ms 448 KB Output is correct
26 Correct 13 ms 448 KB Output is correct
27 Correct 10 ms 344 KB Output is correct
28 Correct 9 ms 344 KB Output is correct
29 Correct 12 ms 448 KB Output is correct
30 Correct 12 ms 600 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 2 ms 344 KB Output is correct
6 Correct 2 ms 344 KB Output is correct
7 Correct 2 ms 448 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 2 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 2 ms 444 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 3 ms 344 KB Output is correct
18 Correct 12 ms 344 KB Output is correct
19 Correct 9 ms 344 KB Output is correct
20 Correct 11 ms 448 KB Output is correct
21 Correct 8 ms 340 KB Output is correct
22 Correct 11 ms 444 KB Output is correct
23 Correct 9 ms 344 KB Output is correct
24 Correct 14 ms 456 KB Output is correct
25 Correct 9 ms 448 KB Output is correct
26 Correct 13 ms 448 KB Output is correct
27 Correct 10 ms 344 KB Output is correct
28 Correct 9 ms 344 KB Output is correct
29 Correct 12 ms 448 KB Output is correct
30 Correct 12 ms 600 KB Output is correct
31 Correct 28 ms 432 KB Output is correct
32 Correct 56 ms 692 KB Output is correct
33 Correct 55 ms 952 KB Output is correct
34 Correct 87 ms 700 KB Output is correct
35 Correct 72 ms 460 KB Output is correct
36 Correct 45 ms 712 KB Output is correct
37 Correct 98 ms 716 KB Output is correct
38 Correct 67 ms 684 KB Output is correct
39 Correct 46 ms 472 KB Output is correct
40 Correct 66 ms 684 KB Output is correct
41 Correct 113 ms 592 KB Output is correct
42 Correct 54 ms 708 KB Output is correct
43 Correct 97 ms 600 KB Output is correct
44 Correct 47 ms 956 KB Output is correct
45 Correct 69 ms 344 KB Output is correct
46 Correct 112 ms 600 KB Output is correct
47 Correct 114 ms 848 KB Output is correct
48 Correct 58 ms 692 KB Output is correct
49 Correct 110 ms 452 KB Output is correct
50 Correct 100 ms 700 KB Output is correct
51 Correct 68 ms 684 KB Output is correct
52 Correct 64 ms 600 KB Output is correct
53 Correct 108 ms 716 KB Output is correct
54 Correct 105 ms 608 KB Output is correct
55 Correct 99 ms 604 KB Output is correct
56 Correct 92 ms 696 KB Output is correct
57 Correct 99 ms 644 KB Output is correct
58 Correct 109 ms 700 KB Output is correct
59 Correct 82 ms 600 KB Output is correct
60 Correct 73 ms 952 KB Output is correct