Submission #1051438

#	Time	Username	Problem	Language	Result	Execution time	Memory
1051438		anton	Toys (CEOI18_toy)	C++17	19 / 100	99 ms	262144 KiB

toy

#include<bits/stdc++.h>

using namespace std;
#define int long long
int N;
vector<int> factorize(int n){
    vector<int> res;
    for(int i = 2; i*i<=n;){
        if(n%i == 0){
            res.push_back(i);
            n/=i;
        }
        else{
            i++;
        }
    }
    res.push_back(n);
    return res;
}

void recur(int pos, int max_c, vector<vector<int>>& res, vector<int>& cur){
    if(pos == cur.size()){
        res.push_back(cur);
        return;
    }
    for(int i = 0; i<max_c; i++){
        cur[pos] = i;
        recur(pos+1, max_c, res, cur);
    }
}

vector<vector<int>> assignements(int n){
    vector<vector<int>> res;
    vector<int> cur = vector<int>(n, 0);
    recur(0, n, res, cur);
    return res;
}
signed main(){
    cin>>N;

    auto factors = factorize(N);
    set<int> possib;
    int K = factors.size();
    for(auto assign: assignements(K)){
        
        vector<int> prod(K, 1);
        for(int i = 0; i<K; i++){
            prod[assign[i]] =(prod[assign[i]]* factors[i]);
        }


        int s= 0;
        for(auto e: prod){
            s+=e-1;
        }
        possib.insert(s);
    }
    
    cout<<possib.size()<<endl;

    for(auto e: possib){
        cout<<e<<" ";
    }
    cout<<endl;
}

Compilation message (stderr)

toy.cpp: In function 'void recur(long long int, long long int, std::vector<std::vector<long long int> >&, std::vector<long long int>&)':
toy.cpp:22:12: 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]
   22 |     if(pos == cur.size()){
      |        ~~~~^~~~~~~~~~~~~

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