제출 #658297

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
658297		Zena_Hossam	순열 (APIO22_perm)	C++17	컴파일 에러	0 ms	0 KiB

perm

#include<bits/stdc++.h>
#include "perm.h"
#include "grader.cpp"
#define  ll int
using namespace std;
std::vector<long long> construct_permutation(long long k)
{
    vector<pair<ll,ll>>v;
    vector<ll>s,x;
    long long l=1;
    for(ll i=0;i<1e18;i++)
    {
        v.push_back({l-1,i});
        l*=2;
        if(l-1>1e18)break;
    }
    ll p=k-2;k--;
    while(1)
    {
        pair<ll,ll>h={k,0};
        ll o=lower_bound(v.begin(),v.end(),h)-v.begin();
        if(v[o].first>k)o--;
        for(ll i=p-v[o].second+1;i<=p;i++){
            s.push_back(i);
        }
     //   cout<<v[o].first<<" "<<v[o].second<<" "<<k<<"\n";
        p-=v[o].second;
        k-=v[o].first;
        if(k<=0)break;
    }x=s;
    sort(x.begin(),x.end());
    map<ll,ll>m;
    for(ll i=0;i<x.size();i++)
    {
        m[x[i]]=i;
    }
    for(ll i=0;i<x.size();i++)
    {
        s[i]=m[s[i]];
    }
    return s;
}

컴파일 시 표준 에러 (stderr) 메시지

perm.cpp:6:24: error: ambiguating new declaration of 'std::vector<long long int> construct_permutation(long long int)'
    6 | std::vector<long long> construct_permutation(long long k)
      |                        ^~~~~~~~~~~~~~~~~~~~~
In file included from grader.cpp:1,
                 from perm.cpp:3:
perm.h:3:18: note: old declaration 'std::vector<int> construct_permutation(long long int)'
    3 | std::vector<int> construct_permutation(long long k);
      |                  ^~~~~~~~~~~~~~~~~~~~~
perm.cpp: In function 'std::vector<long long int> construct_permutation(long long int)':
perm.cpp:33:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     for(ll i=0;i<x.size();i++)
      |                ~^~~~~~~~~
perm.cpp:37:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |     for(ll i=0;i<x.size();i++)
      |                ~^~~~~~~~~
perm.cpp:41:12: error: could not convert 's' from 'vector<int>' to 'vector<long long int>'
   41 |     return s;
      |            ^
      |            |
      |            vector<int>