oj.uz

Submission #996157

# Submission time Handle Problem Language Result Execution time Memory
996157 2024-06-10T08:20:47 Z cnn008 Xylophone (JOI18_xylophone) C++17
100 / 100
 407 ms 97492 KB 
#include <bits/stdc++.h>
#include "xylophone.h"
using namespace std;

int a[5005],d[5005][5005];

void solve(int n){
	int _=query(1,2);
	for(int i=3; i<=n; i++) d[i-2][i]=query(i-2,i);
	for(int i=2; i<=n; i++) d[i-1][i]=query(i-1,i);
	for(int i=1; i<=n; i++){
		a[1]=i;
		for(int __=-1; __<=1; __+=2){
			vector <int> vis(n+1,0);
			vis[a[1]]++;
			a[2]=a[1]+__*_;
			if(a[2]>=1 and a[2]<=n) vis[a[2]]++;
			int cnt=0;
			for(int j=3; j<=n; j++){
				int v=d[j-2][j];
				int l=d[j-1][j];
				if(v==max(a[j-1],a[j-2])-min(a[j-1],a[j-2])){
					if(a[j-1]>a[j-2]) a[j]=a[j-1]-l;
					else a[j]=a[j-1]+l;
				}else{
					int ifmin=a[j-1]-l;
					int ifmax=a[j-1]+l;
					if(ifmin>0 and max({a[j-2],a[j-1]})-ifmin==v) a[j]=ifmin;
					else a[j]=ifmax;
				}
				if(a[j]>=1 and a[j]<=n) vis[a[j]]++;
			}
			int fir=1,last=0;
			for(int j=1; j<=n; j++) if(a[j]==1) fir=j;
			for(int j=1; j<=n; j++) if(a[j]==n) last=j;
			if(fir>last) continue;
			bool ck=1;
			for(int i=1; i<=n; i++) if(vis[i]!=1) ck=0;
			if(!ck) continue;
			for(int i=1; i<=n; i++) answer(i,a[i]);
			return;
		}
	}
}

Compilation message

xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:18:8: warning: unused variable 'cnt' [-Wunused-variable]
   18 |    int cnt=0;
      |        ^~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 1 ms 2388 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 2 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 2 ms 2392 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 2 ms 2392 KB Output is correct
13 Correct 2 ms 2648 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 1 ms 2392 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 1 ms 344 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 1 ms 2388 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 2 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 2 ms 2392 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 2 ms 2392 KB Output is correct
13 Correct 2 ms 2648 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 1 ms 2392 KB Output is correct
16 Correct 2 ms 6488 KB Output is correct
17 Correct 7 ms 10584 KB Output is correct
18 Correct 12 ms 17132 KB Output is correct
19 Correct 17 ms 21076 KB Output is correct
20 Correct 19 ms 20824 KB Output is correct
21 Correct 22 ms 21004 KB Output is correct
22 Correct 22 ms 20824 KB Output is correct
23 Correct 11 ms 21000 KB Output is correct
24 Correct 18 ms 20824 KB Output is correct
25 Correct 11 ms 20996 KB Output is correct
26 Correct 18 ms 21080 KB Output is correct
27 Correct 17 ms 21004 KB Output is correct
28 Correct 13 ms 20824 KB Output is correct
29 Correct 15 ms 20824 KB Output is correct
30 Correct 16 ms 21228 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 1 ms 344 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 1 ms 2388 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 2 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 2 ms 2392 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 2 ms 2392 KB Output is correct
13 Correct 2 ms 2648 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 1 ms 2392 KB Output is correct
16 Correct 2 ms 6488 KB Output is correct
17 Correct 7 ms 10584 KB Output is correct
18 Correct 12 ms 17132 KB Output is correct
19 Correct 17 ms 21076 KB Output is correct
20 Correct 19 ms 20824 KB Output is correct
21 Correct 22 ms 21004 KB Output is correct
22 Correct 22 ms 20824 KB Output is correct
23 Correct 11 ms 21000 KB Output is correct
24 Correct 18 ms 20824 KB Output is correct
25 Correct 11 ms 20996 KB Output is correct
26 Correct 18 ms 21080 KB Output is correct
27 Correct 17 ms 21004 KB Output is correct
28 Correct 13 ms 20824 KB Output is correct
29 Correct 15 ms 20824 KB Output is correct
30 Correct 16 ms 21228 KB Output is correct
31 Correct 38 ms 43600 KB Output is correct
32 Correct 133 ms 62032 KB Output is correct
33 Correct 137 ms 86800 KB Output is correct
34 Correct 237 ms 97112 KB Output is correct
35 Correct 264 ms 97376 KB Output is correct
36 Correct 78 ms 97360 KB Output is correct
37 Correct 174 ms 97168 KB Output is correct
38 Correct 56 ms 97368 KB Output is correct
39 Correct 104 ms 97360 KB Output is correct
40 Correct 180 ms 97100 KB Output is correct
41 Correct 280 ms 97360 KB Output is correct
42 Correct 70 ms 97168 KB Output is correct
43 Correct 169 ms 97364 KB Output is correct
44 Correct 62 ms 97052 KB Output is correct
45 Correct 152 ms 97360 KB Output is correct
46 Correct 282 ms 97044 KB Output is correct
47 Correct 277 ms 97492 KB Output is correct
48 Correct 72 ms 97400 KB Output is correct
49 Correct 285 ms 97404 KB Output is correct
50 Correct 281 ms 97356 KB Output is correct
51 Correct 149 ms 97348 KB Output is correct
52 Correct 108 ms 97360 KB Output is correct
53 Correct 310 ms 97144 KB Output is correct
54 Correct 270 ms 97208 KB Output is correct
55 Correct 317 ms 97212 KB Output is correct
56 Correct 336 ms 97164 KB Output is correct
57 Correct 280 ms 97356 KB Output is correct
58 Correct 407 ms 97212 KB Output is correct
59 Correct 222 ms 97360 KB Output is correct
60 Correct 188 ms 97336 KB Output is correct