Submission #124053

#	Time	Username	Problem	Language	Result	Execution time	Memory
124053		semiauto	Toys (CEOI18_toy)	C++14	100 / 100	2641 ms	4616 KiB

toy

#include <bits/stdc++.h>
#define se second
#define fi first
using namespace std;
int n,i;
priority_queue <int> ans;
vector <int> d;
unordered_map <int,bool> mymap;
void go(int x,int s,int k) {
    if (x==1) {
        if (!mymap[s])
            {
            ans.push(-s);
            mymap[s]=1;
        }
        return;
    }
    int i;
    for (i=k;i<d.size();i++)
        {if (!(x%d[i]))
            go(x/d[i],s+d[i]-1,i);
            if (d[i]>x)break;}
}
int main() {
    cin>>n;
    for (i=2;(i*i)<=n;i++)
        if (!(n%i))
            d.push_back(i);
    for (i=d.size()-1;i>=0;i--)
        if (d[i]*d[i]<n)
            d.push_back(n/d[i]);
    d.push_back(n);
    go(n,0,0);
    cout<<ans.size()<<endl;
    while (ans.size()) {
        printf("%d ",(-(ans.top())));
        ans.pop();
    }
    cout<<endl;
    return 0;
}

Compilation message (stderr)

toy.cpp: In function 'void go(int, int, int)':
toy.cpp:19:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i=k;i<d.size();i++)
              ~^~~~~~~~~
toy.cpp:20:10: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
         {if (!(x%d[i]))
          ^~
toy.cpp:22:13: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
             if (d[i]>x)break;}
             ^~

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