幼儿园做的题，真的不难 AC CODE：

#include<iostream> using namespace std; int main(){ int n; cin>>n; if(n%30){ cout<<"3"<<" "; } if(n%50){ cout<<"5"<<" "; } if(n%7==0){ cout<<"7"<<" "; } if(n%3!=0&&n%5!=0&&n%7!=0){ cout<<"n"; } return 0; }

#include <iostream> using namespace std; int main() { int n; cin >> n; if (n%3 == 0 && n%5 == 0 && n%7 == 0) { cout << "3" << " " << "5" << " " << "7"; } else if (n%3 == 0 && n%5 == 0) { cout << "3" << " " << "5"; } else if (n%3 == 0 && n%7 == 0) { cout << "3" << " " << "7"; } else if (n%7 == 0 && n%5 == 0) { cout << "5" << " " << "7"; } else if (n%3 == 0) { cout << "3"; } else if (n%5 == 0) { cout << "5"; } else if (n%7 == 0) { cout << "7"; } else { cout << "n"; } return 0; }

#include <bits/stdc++.h> using namespace std; int main () { int n; cin>>n; }

真简单 AC

这是python版！！！ i=int(input()) if i%1050: print('3 5 7') elif i%350: print('5 7') elif i%210: print('3 7') elif i%150: print('3 5') elif i%70: print('7') elif i%50: print('5') elif i%3==0: print('3') else: print('n')

#include<iostream> using namespace std; int main(){ }

a=int(input()) if a%30: print(3,end=' ') if a%50: print(5,end=' ') if a%7==0: print(7) if a%3!=0 and a%5!=0 and a%7!=0: print('n')

#include <iostream> using namespace std; int main() { int n; cin>>n; int a[4]={0,3,5,7},flag=0; for(int i=1;i<=3;i++){ if(n%a[i]0) { cout<<a[i]<<" "; flag=1; } } if(flag0) cout<<"n"<<endl; return 0; }

#include<bits/stdc++.h> using namespace std; int main(){ int x; cin>>x; if(x%30){ cout<<3<<" "; }if(x%50){ cout<<5<<" "; }if(x%7==0){ cout<<7<<" "; }if(x%3!=0&&x%5!=0&&x%7!=0){ cout<<"n"; } return 0; }

#include <iostream> #include <cmath> using namespace std; int main() { int a; cin>>a; if(a%30){ cout<<'3'<<' '; } if(a%50){ cout<<"5"<<" "; } if(a%7==0){ cout<<"7"<<" "; } else if(a%3!=0 && a%5!=0 && a%7!=0){ cout<<"n"; } }

保过

#include <iostream> using namespace std; int main(){ int m; cin>>m; if(m%30 && m%50 && m%70){ cout<<3<<" "<<5<<" "<<7; } else{ if(m%30){ cout<<3<<" "; } if(m%50){ cout<<5<<" "; } if(m%70){ cout<<7<<" "; } if(m%3!=0 && m%5!=0 && m%7!=0){ cout<<'n'; } } return 0; }

#include<iostream> using namespace std; int main(){ int a; cin >>a; if(a%30) cout << 3 << " "; if(a%50) cout << 5 << " "; if(a%7==0) cout << 7 << " "; if(a%3!=0&&a%5!=0&&a%7!=0) cout << "n"; }