제출 #1088675

#제출 시각아이디문제언어결과실행 시간메모리
1088675Math4Life2020순열 (APIO22_perm)C++17
91.33 / 100
2 ms604 KiB
#include <bits/stdc++.h> using namespace std; using ll = long long; using pii = pair<ll,ll>; using ld = long double; ll l2(ll x) { return (63-__builtin_clzll(x)); } vector<int> construct_permutation(ll KC) { ll K = KC; ll lk = l2(K); vector<pair<ld,ll>> v1; for (ll i=0;i<lk;i++) { v1.push_back({(ld)i,i}); } K -= (1LL<<lk); ll T = lk; while (K>0) { ll lv = l2(K); v1.push_back({((ld)lv-0.5),T++}); K -= (1LL<<lv); } sort(v1.begin(),v1.end()); vector<int> vout; for (auto A: v1) { vout.push_back((int)A.second); } return vout; }
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