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답안 #498963

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
498963 2021-12-26T20:00:59 Z inksamurai Drvca (COCI19_drvca) C++17
110 / 110
 30 ms 3412 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
#define rep(i,n) for(int i=0;i<n;i++)
#define crep(i,x,n) for(int i=x;i<n;i++)
#define drep(i,n) for(int i=n-1;i>=0;i--)
#define vec(...) vector<__VA_ARGS__>
#define _3qplfh5 ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0)
using namespace std;
typedef long long ll;
typedef long double ld;
using pii=pair<int,int>;
using vi=vector<int>;
using vll=vector<long long>;

int main(){
_3qplfh5;
	int n;
	cin>>n;
	vi a(n);
	rep(i,n){
		cin>>a[i];
	}
	sort(all(a));

	vi wata(n,-1);
	wata[n-1]=-1;
	wata[n-2]=-1;
	drep(i,n-2){
		if(a[i+1]-a[i]!=a[i+2]-a[i+1]){
			break;
		}
		wata[i]=a[i+1]-a[i];
	}
	// rep(i,n){
	// 	cout<<wata[i]<<" ";
	// }
	// cout<<"\n";

	auto g=[&](vi up,vi dw){
		vec(vi) cands;
		cands.pb(up);
		cands.pb(dw);
		int now=0;
		rep(t,2){
			if(!sz(cands[t]))
				return;
			now+=sz(cands[t]);
		}
		if(now!=n){
			return;
		}
		rep(t,2){
			crep(i,2,sz(cands[t])){
				if(cands[t][i]-cands[t][i-1]!=cands[t][i-1]-cands[t][i-2])
					return;
			}
		}
		rep(t,2){
			cout<<sz(cands[t])<<"\n";
			for(auto x : cands[t]){
				cout<<x<<" ";
			}
			cout<<"\n";
		}
		exit(0);
	};
	
	auto f=[&](int id,int id2){
		vi up,dw;
		up.pb(a[id]);
		up.pb(a[id2]);
		int diff=a[id2]-a[id];
		rep(i,n){
			if(i==id or i==id2){
				continue;
			}
			if(sz(dw)>=3){
				if(dw[sz(dw)-1]-dw[sz(dw)-2]!=dw[sz(dw)-2]-dw[sz(dw)-3]){
					return;
				}
			}
			int x=a[i];
			if(x-up.back()!=diff){
				dw.pb(x);
			}else{
				if(i>=n-3 or wata[i+1]!=-1){
					crep(j,i,n){
						dw.pb(a[j]);
					}
					g(up,dw);
					crep(j,i,n){
						dw.pop_back();
					}
				}
				up.pb(x);
			}
		}
		g(up,dw);
	};
	if(n!=2){
		f(0,1);
		f(0,2);
		f(1,2);
	}else{
		g({a[0]},{a[1]});
	}
	cout<<"-1\n";
//	
	return 0;
}

Subtask #1
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 0 ms 204 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 0 ms 204 KB Output is correct
27 Correct 0 ms 204 KB Output is correct
28 Correct 0 ms 204 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 0 ms 256 KB Output is correct

Subtask #3
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 3208 KB Output is correct
2 Correct 24 ms 3260 KB Output is correct
3 Correct 24 ms 3200 KB Output is correct
4 Correct 25 ms 3256 KB Output is correct
5 Correct 25 ms 3168 KB Output is correct
6 Correct 24 ms 3260 KB Output is correct
7 Correct 30 ms 3164 KB Output is correct
8 Correct 24 ms 3256 KB Output is correct
9 Correct 22 ms 2876 KB Output is correct
10 Correct 25 ms 3252 KB Output is correct
11 Correct 18 ms 3412 KB Output is correct
12 Correct 0 ms 204 KB Output is correct

Subtask #4
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 0 ms 204 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 0 ms 204 KB Output is correct
27 Correct 0 ms 204 KB Output is correct
28 Correct 0 ms 204 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 0 ms 256 KB Output is correct
31 Correct 24 ms 3208 KB Output is correct
32 Correct 24 ms 3260 KB Output is correct
33 Correct 24 ms 3200 KB Output is correct
34 Correct 25 ms 3256 KB Output is correct
35 Correct 25 ms 3168 KB Output is correct
36 Correct 24 ms 3260 KB Output is correct
37 Correct 30 ms 3164 KB Output is correct
38 Correct 24 ms 3256 KB Output is correct
39 Correct 22 ms 2876 KB Output is correct
40 Correct 25 ms 3252 KB Output is correct
41 Correct 18 ms 3412 KB Output is correct
42 Correct 0 ms 204 KB Output is correct
43 Correct 23 ms 3248 KB Output is correct
44 Correct 16 ms 1484 KB Output is correct
45 Correct 22 ms 3060 KB Output is correct
46 Correct 24 ms 3248 KB Output is correct
47 Correct 16 ms 1488 KB Output is correct
48 Correct 22 ms 2932 KB Output is correct
49 Correct 24 ms 3188 KB Output is correct
50 Correct 16 ms 1356 KB Output is correct
51 Correct 23 ms 3060 KB Output is correct
52 Correct 25 ms 3216 KB Output is correct
53 Correct 17 ms 1524 KB Output is correct
54 Correct 24 ms 2932 KB Output is correct
55 Correct 24 ms 3196 KB Output is correct
56 Correct 19 ms 3256 KB Output is correct
57 Correct 21 ms 3412 KB Output is correct
58 Correct 0 ms 204 KB Output is correct