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<cstdio> int main(){ int n; scanf("%d",&n); if(n%30&&n%50&&n%70)printf("3 5 7"); if(n%3!=0&&n%50&&n%70)printf("5 7"); if(n%30&&n%50&&n%7!=0)printf("3 5"); if(n%30&&n%5!=0&&n%70)printf("3 7"); if(n%30&&n%5!=0&&n%7!=0)printf("3"); if(n%3!=0&&n%50&&n%7!=0)printf("5"); if(n%3!=0&&n%5!=0&&n%70)printf("7"); if(n%3!=0&&n%5!=0&&n%7!=0)printf("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<iostream> using namespace std; int main() { int n; cin>>n; if(n%3=0)//加= cout<<"3"<<" "; if(n%5==0) cout<<"5"<<" "; if(n%7=0)//加= cout<<"7"<<" "; if(n%3!=0&&n%5!=0&&n%7!=0) cout<<"n"; }

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

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

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')

真简单 AC

#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 n; cin>>n; if(n % 3 != 0 && n % 5 != 0 && n % 7 != 0) { cout<<"n"<<endl; } else { if(n % 3 == 0) { cout<<3<<" "; } if(n % 5 == 0) { cout<<5<<" "; } if(n % 7 == 0) { cout<<7<<" "; } } return 0; }

#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')