제출 #153176

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
153176		nicolaalexandra	Toys (CEOI18_toy)	C++14	39 / 100	5071 ms	504 KiB

toy

#include <iostream>
#include <set>
using namespace std;

//ifstream cin ("date.in");
//ofstream cout ("date.out");
multiset <int> v;
set <int> sol;
int x,nr,d;
void back (){
    if (v.size() == 1)
        return;

    int val = 0;
    for (auto x:v)
        val += x-1;
    sol.insert (val);
    if (v.size() == 2)
        return;
    /// vreau sa reduc dimensiunea cu 1
    /// elimin dublurile
    set <int> s;
    for (auto x:v)
        s.insert(x);

    for (auto x:s)
        for (auto y:s){
            if (y > x)
                continue;
            /// le elimin din set si introduc produsul lor
            if (x == y && v.count(x) < 2)
                continue;
            v.erase(v.find(x));
            v.erase(v.find(y));
            v.insert(x*y);
            back ();
            v.insert(x);
            v.insert(y);
            v.erase(v.find(x*y));
        }}
int main (){

    cin>>x;
    int d = 2, nr = x;
    while (nr != 1 && d <= nr/d){
        int e = 0;
        while (nr % d == 0){
            v.insert (d); /// multiset
            nr /= d;
        }
        d++;
    }
    if (nr != 1)
        v.insert (nr);

    back ();
    sol.insert (x-1);
    cout<<sol.size()<<"\n";
    for (auto x:sol)
        cout<<x<<" ";

    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

toy.cpp: In function 'int main()':
toy.cpp:46:13: warning: unused variable 'e' [-Wunused-variable]
         int e = 0;
             ^

• Subtask 1: 19 / 19
• Subtask 2: 20 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 21