제출 #984132

#제출 시각아이디문제언어결과실행 시간메모리
984132vjudge1순열 (APIO22_perm)C++17
71.22 / 100
377 ms1344 KiB
#include "perm.h" #include<bits/stdc++.h> #define sz size() #define ll long long using namespace std; mt19937_64 rnd(8181781228); vector<int> construct_permutation(ll k) { ll z = 1, sum = 0; k; vector<ll> x; for(ll j = 59; j > 0; --j) { if((z << j) > k) continue; x.push_back(j); k -= (z << j); sum += j; break; } for(ll t = 1; t <= 100000; ++t) for(ll j = 59; j > 0; --j) { if((z << j) - 1 > k) continue; ll _j = j - rnd() % (z + 2); _j = max(1ll, j); x.push_back(_j); k -= (z << _j) - 1; sum += _j; } ll cur = 0; vector<int> ans; for(ll t : x) { for(ll i = cur + t; i > cur; --i) ans.push_back(i - 1); cur += t; } reverse(ans.begin(), ans.end()); return ans; } //signed main() //{ // ios_base::sync_with_stdio(0); // cin.tie(0), cout.tie(0); // ll n; // cin >> n; // for(auto i : construct_permutation(n)) // cout << i << ' '; //}

컴파일 시 표준 에러 (stderr) 메시지

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:10:5: warning: statement has no effect [-Wunused-value]
   10 |     k;
      |     ^
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