Submission #1000149

#	Time	Username	Problem	Language	Result	Execution time	Memory
1000149		daffuwu	Toys (CEOI18_toy)	C++14	0 / 100	0 ms	348 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, tmp, cur;
vector<pair<int, vector<int> > > vc;

void process(int dv)
{
    int i;
    vc.push_back({dv, {}});
    for (cur=1, i=vc.size()-1; i>=1; i--)
    {
        cur *= vc[i].fr;
        if (i == vc.size()-1 || vc[i-1].fr != dv)
        {
            for (auto x:vc[i-1].sc)
            {
                vc.back().sc.push_back(x+cur-1);
            }
        }
    }
    cur *= vc[0].fr;
    vc.back().sc.push_back(cur-1);
}

int main() 
{
    int i, j;
    scanf("%d", &n);
    for (i=2, tmp=n; i*i<=n; i++)
    {
        for (; tmp%i == 0; tmp/=i) process(i);
    }
    if (tmp>1) process(tmp);
    if (n == 1) vc.push_back({0, {0}});
    sort(vc.back().sc.begin(), vc.back().sc.end());
    printf("%d\n", (int)vc.back().sc.size());
    for (auto x:vc.back().sc) printf("%d ", x);
    printf("\n");    
}

Compilation message (stderr)

toy.cpp: In function 'void process(int)':
toy.cpp:17:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::vector<int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |         if (i == vc.size()-1 || vc[i-1].fr != dv)
      |             ~~^~~~~~~~~~~~~~
toy.cpp: In function 'int main()':
toy.cpp:31:12: warning: unused variable 'j' [-Wunused-variable]
   31 |     int i, j;
      |            ^
toy.cpp:32:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~

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