Submission #623820

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
623820	2022-08-06 14:38:56	iomoon191	Permutation (APIO22_perm)	C++17	100 / 100	4 ms	340 KiB

perm

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#include <perm.h>
using ll = long long;
//#define int ll
using namespace std;
#define sz(x) (int)(x).size()
#define foru(i, l, r) for(int i = l; i <= r; i++)
#define ford(i, l, r) for(int i = l; i >= r; i--)
#define fi first
#define se second
#define mod 998244353
#define db(x) cerr << __LINE__ << " " << #x << " " << x << "\n"
using vi = vector<int>;
using pi = pair<int, int>;
const ll N = 200005;
const ll inf = 1e18;
vi construct_permutation(ll k){
  if(k == 1) return {};
  if(k == 2) return {0};
  if(k == 3) return {1, 0};
  vi d = construct_permutation(k >> 2);
  int s = sz(d);
  if(k % 4 == 0){
    d.push_back(s);
    d.push_back(s + 1);
    return d;
  }
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 90 / 90