Submission #1002419

#	Time	Username	Problem	Language	Result	Execution time	Memory
1002419		daffuwu	Toys (CEOI18_toy)	C++14	100 / 100	1051 ms	112380 KiB

toy

#include <bits/stdc++.h>
using namespace std;
#define fr first
#define sc second
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

int n, x, a, b;
vector<int> vc[100069], fac;

int main() 
{
    int i, j;
    scanf("%d", &n);
    for (i=1; i*i<=n; i++)
    {
        if (n%i == 0)
        {
            fac.push_back(i);
            if (i != n/i) fac.push_back(n/i);
        }
    }
    sort(fac.begin(), fac.end());
    vc[0].push_back(0);
    for (i=1; i<fac.size(); i++)
    {
        x = fac[i];
        // printf("x = %d\n", x);
        for (j=0; j<=i-1; j++)
        {
            a = fac[j];
            if (x%a != 0) continue;
            b = x/a;
            // printf("a = %d b = %d\n", a, b);
            //b nya bisa di-split lagi boz
            for (auto f:vc[j])
            {
                vc[i].push_back(f+b-1);
            }
        }
        sort(vc[i].begin(), vc[i].end());
        vc[i].resize(unique(vc[i].begin(), vc[i].end())-vc[i].begin());
    }
    printf("%d\n", (int)vc[fac.size()-1].size());
    for (auto x:vc[fac.size()-1]) printf("%d ", x);
    printf("\n");
}

Compilation message (stderr)

toy.cpp: In function 'int main()':
toy.cpp:24:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for (i=1; i<fac.size(); i++)
      |               ~^~~~~~~~~~~
toy.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~

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