Submission #675984

#	Time	Username	Problem	Language	Result	Execution time	Memory
675984		Essa2006	Permutation (APIO22_perm)	C++17	0 / 100	1 ms	212 KiB

perm

#include<bits/stdc++.h>
using namespace std;
#define int long long 
#define endl '\n'
#define FF first
#define SS second
#define all(a) a.begin(), a.end()
#define mod (ll)(1000000007)
int mx=0, K;
vector<int>AAns;
void solve(){
    vector<int>Ans;
    bitset<1000>a=K;
        int group=0;
        for(int i=0;i<=64;i++){
            if(a[i]){
                group++;
                for(int j=0;j<i;j++)
                    Ans.push_back(j);
            }
        }
        vector<int>Old=Ans;
        int n=Ans.size(), cur=0;
        for(int i=n-1;i>=0;i--){
            if(!Old[i]){
                int ind=i;
                while(true){
                    Ans[ind]=cur++;
                    if(ind<n-1 && Old[ind+1])
                        ind++;
                    else
                        break;
                }
            }
        }
        group--;
        for(int i=0;i<Ans.size();i++)
            Ans[i]+=mx;
        mx+=cur;
        for(int i=0;i<AAns.size();i++){
            Ans.push_back(AAns[i]);
        }
        AAns=Ans;
        if(group>1){
            K=group+1;
            solve();
        }
        else if(group){
            int s=mx;
            for(int i=0;i<AAns.size();i++){
                swap(AAns[i], s);
            }
            AAns.push_back(s);
        }
            
}
vector<int> construct_permutation(int k){
    K=k;
    mx=0;
    AAns.clear();
    solve();
    return AAns;
}

Compilation message (stderr)

perm.cpp: In function 'void solve()':
perm.cpp:37:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |         for(int i=0;i<Ans.size();i++)
      |                     ~^~~~~~~~~~~
perm.cpp:40:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |         for(int i=0;i<AAns.size();i++){
      |                     ~^~~~~~~~~~~~
perm.cpp:50:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |             for(int i=0;i<AAns.size();i++){
      |                         ~^~~~~~~~~~~~

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