Submission #1260779

#	Time	Username	Problem	Language	Result	Execution time	Memory
1260779		Bui_Quoc_Cuong	Toys (CEOI18_toy)	C++20	59 / 100	5102 ms	183552 KiB

toy

#include <bits/stdc++.h>
using namespace std;
template <class A, class B>
    bool maximize(A &a, const B b) {
        if (a < b) {
            a = b;
            return true;
        } return false;
    }
template <class A, class B>
    bool minimize(A &a, const B b) {
        if (a > b) {
            a = b;
            return true;
        } return false;
    }
#define pb push_back
#define FOR(i, a, b) for(int i = a; i <= (int)b; i++)
#define FORD(i, a, b) for(int i = a; i >= (int)b; i--)
#define fi first
#define se second
#define ALL(A) A.begin(), A.end()

typedef vector<int> vi;
typedef pair<int, int> ii;
typedef long long ll;

const int N = 3e5 + 5;
const int oo = 2e9 + 29032008;
const ll INF = 1e18 + 29032008;

int n;
map <pair <int, int>, bool> dp;

void solve() {
	cin >> n;
	queue <pair <int, int>> que;
	que.push({1, 0});
	while (!que.empty()) {
		int tich = que.front().fi, len = que.front().se;
		que.pop();
		if (dp[{tich, len}]) continue;
		int rem = n / tich;
		for (int i = 1; i * i <= rem; i++) if (rem % i == 0) {
			if (i != 1) {
				if (dp[{tich * i, len + i - 1}] == 0) {
					que.push({tich * i, len + i - 1});
				}
			}
			if (rem / i != i) {
				if (dp[{tich * rem / i, len + rem / i - 1}] == 0) {
					que.push({tich * rem / i, len + rem / i - 1});
				}
			}
		}
	}
	int res = 0;
	for (auto &x : dp) if (x.fi.fi == n) res++;
	cout << res << "\n";
	for (auto &x : dp) if (x.fi.fi == n) cout << x.fi.se << " ";
}

signed main() {
    ios_base::sync_with_stdio(false); cin.tie(nullptr);
    #define ko "kieuoanh"
    if (fopen(ko".inp", "r")) { 
        freopen(ko".inp", "r", stdin); 
        freopen(ko".out", "w", stdout);
    }

    int NTEST = 1; // cin >> NTEST;
    while (NTEST--) solve();
    
    cerr << "\n[Time Elapsed] " << 0.001 * clock() << "s\n";
    return 0;
}

Compilation message (stderr)

toy.cpp: In function 'int main()':
toy.cpp:67:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   67 |         freopen(ko".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
toy.cpp:68:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   68 |         freopen(ko".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

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