Submission #385358

#	Time	Username	Problem	Language	Result	Execution time	Memory
385358		igzi	Toys (CEOI18_toy)	C++17	0 / 100	1 ms	364 KiB

toy

#include <bits/stdc++.h>
using namespace std;
vector<int> sol;
int n;
 
void solve(vector<pair<int,int>> v , int cnt , int mult , int pos){
    if(pos == v.size()){
        int f = 0;
        for(auto i : v){
            f += i.second;
        }
        if(mult == 1){
            return ;
        }
        if(f == 0){
            sol.push_back(cnt+mult-1);
        }
        solve(v,cnt+mult-1,1,0);
        return ;
    }
    solve(v,cnt,mult,pos+1);
    if(v[pos].second){
        vector<pair<int,int>> nv = v;
        nv[pos].second -= 1;
        solve(nv,cnt,mult*v[pos].first,pos);
    }
}
 
int main(){
    cin >> n;
    vector<pair<int,int>> v;
    for(int i = 2 ; i*i <= n ; i += 1){
        if(n%i == 0){
            int cnt = 0;
            while(n%i == 0){
                n /= i;
                cnt += 1;
            }
            v.push_back({i,cnt});
        }
    }
    if(n > 1){
        v.push_back({n,1});
    }
    solve(v,0,1,0);
    sort(sol.begin(),sol.end());
    sol.erase(unique(sol.begin(),sol.end()),sol.end());
    cout << sol.size() << endl;
    for(int i : sol){
        cout << i << " ";
    }cout << endl;
}

Compilation message (stderr)

toy.cpp: In function 'void solve(std::vector<std::pair<int, int> >, int, int, int)':
toy.cpp:7:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 |     if(pos == v.size()){
      |        ~~~~^~~~~~~~~~~

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