Submission #130270

#	Time	Username	Problem	Language	Result	Execution time	Memory
130270		khulegub	Mechanical Doll (IOI18_doll)	C++14	2 / 100	208 ms	27388 KiB

doll

#include "doll.h"
#include <bits/stdc++.h>
#define mp make_pair
#define xx first
#define yy second
#define pb push_back


using namespace std;
typedef pair<int, int> pii;

/**********************/
/* YOU ARE INVITED TO */
/*                    */
/*       SUFFER       */
/*                    */
/*      ########      */
/*      # JOIN #      */
/*      ########      */
/*                    */
/**********************/


void create_circuit(int m, vector<int> a) {
	a.pb(0);

	int n = a.size();
	vector<int> c(m + 1);
	vector<int> x, y;

	// c[0] = a[0];
	map<int, unordered_set<int> > garalt;

	garalt[0].insert( a[0] );
	for (int i = 0; i < n - 1; i++){
		garalt[ a[i] ].insert( a[i + 1] );
	}

	// for (int i = 0; i < n - 1; i++){


	// }
	int s = 0;
	for (auto gang : garalt){
		if(gang.yy.size() == 1){
			// cout << *gang.yy.begin();
			c[gang.xx] = *gang.yy.begin();
		}
		else{
			int gangsz = gang.yy.size();
			int gangcnt = 0;
			for (auto xaxa : gang.yy){
				if (gangcnt == gangsz - 1){
					y[s - 1] = xaxa;
					break;
				}
				else if (gangcnt == gangsz - 2){
					x.pb(0);
					y.pb(0);
					c[gang.xx] = -(s + 1);
					x[s] = xaxa;
					s++;
				}
				else{
					x.pb(0);
					y.pb(0);
					c[gang.xx] = -(s + 1);
					x[s] = xaxa;
					y[s] = -(s + 2);
					s++;
				}
				gangcnt++;
			}
		}
		// cout << gang.xx << ' ' << gang.yy.size() << '\n';
	}

	// now we want to connect l to l + 1
	// and r - 1 to r



	// 
	answer(c, x, y);
}


// int main(){ // DRIVER - CHAN
// 	create_circuit(9, {1, 3, 2, 1, 3, 4, 2, 1, 3});
// }

• Subtask 1: 2 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 18
• Subtask 6: 0 / 56