Submission #78131

#	Time	Username	Problem	Language	Result	Execution time	Memory
78131		igzi	Toys (CEOI18_toy)	C++17	100 / 100	981 ms	51980 KiB

toy

#include <bits/stdc++.h>

using namespace std;

long long n,k,r,i,j,a[200],b[200],p,m;
vector <pair<long long,long long>> v;
vector <long long> s;

vector <long long> resi(int n,int p){
  vector <long long> ans,tmp;
  if(p>n) return ans;
  for(int i=p;i*i<=n;i++){
      if(n%i) continue;
      tmp=resi(n/i,i);
      for(int j=0;j<tmp.size();j++){
          ans.push_back(tmp[j]+i-1);
      }
  }
  ans.push_back(n-1);
}


int main() {
    cin>>n;
    if(n==1){
        cout<<1<<endl<<0;
        return 0;
    }
    s=(resi(n,2));
    sort(s.begin(),s.end());
    r=1;
    for(i=1;i<s.size();i++){
        if(s[i]!=s[i-1]) r++;
    }
    cout<<r<<endl;
    cout<<s[0]<<" ";
    for(i=1;i<s.size();i++){
        if(s[i]!=s[i-1]) cout<<s[i]<<" ";
    }
    return 0;
}

Compilation message (stderr)

toy.cpp: In function 'std::vector<long long int> resi(int, int)':
toy.cpp:15:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       for(int j=0;j<tmp.size();j++){
                   ~^~~~~~~~~~~
toy.cpp: In function 'int main()':
toy.cpp:32:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=1;i<s.size();i++){
             ~^~~~~~~~~
toy.cpp:37:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=1;i<s.size();i++){
             ~^~~~~~~~~
toy.cpp: In function 'std::vector<long long int> resi(int, int)':
toy.cpp:20:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

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