Submission #497211

#	Time	Username	Problem	Language	Result	Execution time	Memory
497211		inksamurai	Slagalica (COCI19_slagalica2)	C++17	10 / 70	35 ms	2480 KiB

slagalica

#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 _32bB6rn ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0)
#define nare {cout<<"-1\n"; exit(0);}
using namespace std;
typedef long long ll;
typedef long double ld;
using pii=pair<int,int>;
using vi=vector<int>;

int main(){
_32bB6rn;
	int n;
	cin>>n;
	vec(vi) rbts(8);
	rep(i,n){
		int x,y;
		cin>>x>>y;
		x--;
		rbts[x].pb(y);
	}
	rep(i,8){
		sort(rbts[i].rbegin(),rbts[i].rend());
	}
	if(sz(rbts[4])>1 
		or sz(rbts[5])>1 
		or (sz(rbts[4]) and sz(rbts[5]))){
			nare;
	}
	if(sz(rbts[6])>1 
		or sz(rbts[7])>1 
		or (sz(rbts[6]) and sz(rbts[7]))){
		nare;
	}
	int open=sz(rbts[4])?4:5;
	int close=sz(rbts[6])?6:7;
	if(open==4){
		if(close==6){
			if(sz(rbts[3])!=sz(rbts[0])+1) nare;
		}else{
			if(sz(rbts[3])!=sz(rbts[0])) nare;
		}
	}else{
		if(close==6){
			if(sz(rbts[3])!=sz(rbts[0])) nare;
		}else{
			if(sz(rbts[3])+1!=sz(rbts[0])) nare;
		}
	}
	vi pans;
	pans.pb(rbts[open][0]);
	int now=(open==4?1:0);
	rep(i,n-2){
		int x=1e9+1,y=1e9+1; // fix here
		if(now){
			if(sz(rbts[2])){
				x=rbts[2].back();
			}
			if(sz(rbts[3])){
				y=rbts[3].back();
			}
			if(min(x,y)==1e9+1) break;
			if(x<y){
				pans.pb(x);
				rbts[2].pop_back();
			}else{
				pans.pb(y);
				rbts[3].pop_back();
				now^=1;
			}
		}else{
			if(sz(rbts[1])){
				x=rbts[1].back();
			}
			if(sz(rbts[0])){
				y=rbts[0].back();
			}
			if(min(x,y)==1e9+1) break;
			if(x<y){
				pans.pb(x);
				rbts[1].pop_back();
			}else{
				pans.pb(y);
				rbts[0].pop_back();
				now^=1;
			}
		}
	}
	assert(!sz(rbts[0]) and !sz(rbts[2]));
	pans.pb(rbts[close][0]);
	for(auto x : pans){
		cout<<x<<" ";
	}
//	
	return 0;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 5
• Subtask 7: 0 / 5
• Subtask 8: 0 / 5
• Subtask 9: 0 / 5
• Subtask 10: 0 / 5
• Subtask 11: 0 / 5
• Subtask 12: 0 / 5
• Subtask 13: 0 / 5
• Subtask 14: 0 / 5