Submission #1110145

#	Time	Username	Problem	Language	Result	Execution time	Memory
1110145		StefanSebez	Mechanical Doll (IOI18_doll)	C++14	18 / 100	48 ms	10384 KiB

doll

#include <bits/stdc++.h>
#include "doll.h"
using namespace std;
#define fi first
#define se second
#define pb push_back
#define ll long long
#define ld long double
const int lg=18;
void create_circuit(int M, std::vector<int> A){
	int n=A.size();A.pb(0);
	vector<int>C(M+1);C[0]=A[0];
	vector<int>X,Y;
	if(M==1){
		C[1]=-1;
		int x=n-1;
		for(int i=1;i<=lg;i++){
			if((x>>(lg-i))&1==1){
				X.pb(1);
			}
			else X.pb(-1);
			Y.pb(-i-1);
		}
		Y.back()=0;
	}
	else{
		/*X.resize(M),Y.resize(M);
		for(int i=1;i<=M;i++)C[i]=-i;*/
		vector<int>vals[M+50];
		for(int i=0;i<n;i++) vals[A[i]].pb(A[i+1]);
		for(int i=1;i<=M;i++){
			if(vals[i].size()==1) C[i]=vals[i][0];
			if(vals[i].size()<=1) continue;
			int nc=X.size()+1;
			C[i]=-nc;
			if(vals[i].size()==2){
				X.pb(vals[i][0]);
				Y.pb(vals[i][1]);
			}
			else if(vals[i].size()==3){
				X.pb(-(nc+1));
				Y.pb(-(nc+2));
				X.pb(vals[i][0]);
				Y.pb(-nc);
				X.pb(vals[i][1]);
				Y.pb(vals[i][2]);
			}
			else{
				X.pb(-(nc+1));
				Y.pb(-(nc+2));
				X.pb(vals[i][0]);
				Y.pb(vals[i][2]);
				X.pb(vals[i][1]);
				Y.pb(vals[i][3]);
			}
		}
	}
	//for(auto i:C) printf("%i ",i);printf("\n");
	//for(int i=0;i<X.size();i++) printf("{%i %i}\n",X[i],Y[i]);
	answer(C,X,Y);
}

Compilation message (stderr)

doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:18:20: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   18 |    if((x>>(lg-i))&1==1){
      |                   ~^~~

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