Submission #426306

#	Time	Username	Problem	Language	Result	Execution time	Memory
426306		fskarica	Toys (CEOI18_toy)	C++14	100 / 100	1347 ms	114496 KiB

toy

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define fi first
#define se second

const int MAX = 2e5 + 10;
int n;
vector <int> v;
vector <int> dp[MAX];
map <int, int> mp;

int main() {
    cin >> n;

    for (int i = 1; i <= sqrt(n); i++) {
        if (n % i != 0) continue;

        v.push_back(i);
        if (n / i != i) v.push_back(n / i);
    }

    sort(v.begin(), v.end());


    for (int i = 0; i < v.size(); i++) {
        mp[v[i]] = i + 1;
    }

    dp[1] = {0};

    int id = 0;
    for (auto e : v) {
        id++;

        int id2 = 0;
        for (auto e2 : v) {
            id2++;

            if (id < id2) break;
            if (e % e2 != 0) continue;

            for (auto e3 : dp[mp[e / e2]]) {
                dp[id].push_back(e3 + e2 - 1);
            }
        }

        sort(dp[id].begin(), dp[id].end());
        dp[id].erase(unique(dp[id].begin(), dp[id].end()), dp[id].end());
    }

    cout << dp[v.size()].size() << endl;
    for (auto e : dp[v.size()]) {
        cout << e << " ";
    }
    cout << "\n";

    return 0;
}

Compilation message (stderr)

toy.cpp: In function 'int main()':
toy.cpp:27:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for (int i = 0; i < v.size(); i++) {
      |                     ~~^~~~~~~~~~

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