Submission #385647

#	Time	Username	Problem	Language	Result	Execution time	Memory
385647		igzi	Toys (CEOI18_toy)	C++17	100 / 100	793 ms	50956 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> dp(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=dp(n/i,i);
      for(int j=0;j<tmp.size();j++){
          ans.push_back(tmp[j]+i-1);
      }
  }
  ans.push_back(n-1);
  return ans;
}
 
 
int main() {
    cin>>n;
    if(n==1){
        cout<<1<<endl<<0;
        return 0;
    }
    s=dp(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> dp(int, int)':
toy.cpp:15:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |       for(int j=0;j<tmp.size();j++){
      |                   ~^~~~~~~~~~~
toy.cpp: In function 'int main()':
toy.cpp:33:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     for(i=1;i<s.size();i++){
      |             ~^~~~~~~~~
toy.cpp:38:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |     for(i=1;i<s.size();i++){
      |             ~^~~~~~~~~

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