Submission #1235041

#	Time	Username	Problem	Language	Result	Execution time	Memory
1235041		thelegendary08	Permutation (APIO22_perm)	C++17	0 / 100	1 ms	320 KiB

perm

#include "perm.h"
#include<bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define int long long
#define vi vector<int>
#define vvi vector<vector<int>>
#define pii pair<int, int>
#define vpii vector<pair<int, int>>
#define vc vector<char>
#define vb vector<bool>
#define mii map<int,int>
#define f0r(i,n) for(int i=0;i<n;i++)
#define FOR(i,k,n) for(int i=k;i<n;i++)
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define in(a) int a; cin>>a
#define in2(a,b) int a,b; cin>>a>>b
#define in3(a,b,c) int a,b,c; cin>>a>>b>>c
#define in4(a,b,c,d) int a,b,c,d; cin>>a>>b>>c>>d
#define vin(v,n); vi v(n); f0r(i,n){cin>>v[i];}
#define out(a) cout<<a<<'\n'
#define out2(a,b) cout<<a<<' '<<b<<'\n'
#define out3(a,b,c) cout<<a<<' '<<b<<' '<<c<<'\n'
#define out4(a,b,c,d) cout<<a<<' '<<b<<' '<<c<<' '<<d<<'\n'
#define pout(a) cout<<a.first<<' '<<a.second<<'\n'
#define vout(v) for(auto u : v){cout<<u<<' ';} cout<<'\n'
#define dout(a) cout<<a<<' '<<#a<<'\n'
#define dout2(a,b) cout<<a<<' '<<#a<<' '<<b<<' '<<#b<<'\n'
#define yn(x); if(x){cout<<"YES"<<'\n';}else{cout<<"NO"<<'\n';}
const int leg = 1e9 + 7;
const int mod = 998244353;
using namespace std;
std::vector<signed> construct_permutation(long long k)
{
	int msb = 0; int cnt = 0;
	for(int i = 62; i>=0; i--){
		if((1LL << i) & k){
			msb = i; break;
		}
	}
	cnt = msb;
	vi thing;
	for(int i = msb-1; i>=0; i--){
		if((1LL << i) & k)thing.pb(i);
	}
	cnt += thing.size();
	reverse(all(thing));
	vb vis(cnt);
	int ptr = 0;
	int picked = 0; int p2 = 0;
	while(ptr < cnt){
		if(thing[p2] == picked){
			vis[ptr] = 1; p2++;
		}
		else picked++;
		ptr++;
	}
	vector<signed>ans;
	f0r(i, cnt){
		if(!vis[i])ans.pb(i);
	}
	for(int i = cnt-1; i>=0; i--){
		if(vis[i])ans.pb(i);
	}
	// vout(ans);
	return ans;
}

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