Submission #745152

#	Time	Username	Problem	Language	Result	Execution time	Memory
745152		Dan4Life	Permutation (APIO22_perm)	C++17	0 / 100	0 ms	212 KiB

perm

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb push_back
#define all(a) begin(a), end(a)

vector<int> construct_permutation(ll n)
{
	vector<double> v; v.clear();
	vector<int> A,D; A.clear(); D.clear();
	while(n>0) D.pb(n%4),n/=4;
	reverse(all(D));
	int cnt = 0; int tot=0, lol=1, xd = -1;
	double ll = 1.95;
	for(auto u : D){
		if(!cnt){
			if(u==2) v.pb(0),tot=1;
			else if(u==3) v.pb(1), v.pb(0),tot=2, lol=1;
			cnt = 1;
		}
		else{
			if(u==0) v.pb(tot++), v.pb(tot++);
			else if(u==1) v.pb(tot++), v.pb(tot++), v.pb(xd--);
			else if(u==2) v.pb(tot++), v.pb(xd--), v.pb(tot++);
			else if(lol) v.pb(tot++), v.pb(tot++), v.pb(ll), ll-=0.05;
			else v.pb(tot++), v.pb(xd--), v.pb(tot++), v.pb(xd--), lol=1;
		}
	}
	auto w = v; sort(all(w));
	for(auto u : v) A.pb(lower_bound(all(w),u)-begin(w));
	return A;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 90