제출 #708470

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
708470		Essa2006	순열 (APIO22_perm)	C++17	10 / 100	1070 ms	212 KiB

perm

#include<bits/stdc++.h>
#include "perm.h"
using namespace std;
#define ll long long 
#define endl '\n'
#define FF first
#define SS second
#define all(a) a.begin(), a.end()
#define mod (ll)(1000000007)
ll gr(ll n){
    ll pr=0;
    for(;pr<1e9;pr++){
        if((1<<pr)>n)
            break;
    }
    return pr-1;
}
vector<int> construct_permutation(ll k){
    ll j=k;
    k--;
    vector<int>Base, Ans;
    map<ll, priority_queue<ll>>mp;
    ll las=0, cur=0;
    Base.push_back(-1);
    while(k){
        ll mx=min(gr(k), las);
        k-=1<<mx;
        if(mx==las)
            Base.push_back(cur++), las++;
        else
            mp[Base[mx]].push(cur++);
    }
    for(ll i=0;i<Base.size();i++){
        if(i)
            Ans.push_back(Base[i]);
        while(!mp[Base[i]].empty()){
            Ans.push_back(mp[Base[i]].top());
            mp[Base[i]].pop();
        }
    }
    return Ans;
}

컴파일 시 표준 에러 (stderr) 메시지

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:33:17: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     for(ll i=0;i<Base.size();i++){
      |                ~^~~~~~~~~~~~
perm.cpp:19:8: warning: unused variable 'j' [-Wunused-variable]
   19 |     ll j=k;
      |        ^

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