#include <iostream> using namespace std; int main(){ int a,b,c; cin>>a>>b>>c; if(a>0) { cout<<a<<endl; } if(b>0) { cout<<b<<endl; } if(c>0) { cout<<c<<endl; } return 0; }

可用三目运算符 跟别人应该不一样 别不信，确实能AC ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

思路分析 这道题主要考验的是我们对于判断的掌握，只要掌握了判断，这道题基本上没问题 答案 提问时间，随便提问吧

很难 简单

#include <bits/stdc++.h> using namespace std; int main(){ long long a,b,c;cin>>a>>b>>c; if(a>0)cout<<a<<endl; if(b>0)cout<<b<<endl; if(c>0)cout<<c; return 0; }

#include<bits/stdc++.h> using namespace std; int a[3]; int main(){ for(int i=1;i<=3;i++){ cin>>a[i]; if(a[i]>0){ cout<<a[i]<<endl; } } return 0; }//数组

#include <iostream> using namespace std; int main() { int a, b, c; cin >> a >> b >> c; if (a > 0) { cout << a << endl; } if (b > 0) { cout << b << endl; } if (c > 0) { cout << c; } return 0; }

#include <iostream> using namespace std; int main(){ int a,b,c; cin>>a>>b>>c; if(a>0){ cout<<a<<endl; } if(b>0){ cout<<b<<endl; } if(c>0){ cout<<c<<endl; } return 0; }

#include<iostream> using namespace std; int main(){ int a,b,c; cin>>a>>b>>c; if(a>0)cout<<a<<endl; if(b>0)cout<<b<<endl; if(c>0)cout<<c<<endl; }

#include<bits/stdc++.h> using namespace std; int main(){ int a,b,c; cin>>a>>b>>c; if(a>0){ cout<<a<<endl; } if(b>0){ cout<<b<<endl; } if(c>0){ cout<<c<<endl; } return 0; }

#include <fstream> #include<iostream> #include <ostream> using namespace std; int main(){ int a,b,c; cin>>a>>b>>c; if(a>0&b>0&c>0){ cout<<a<<endl; cout<<b<<endl; cout<<c<<endl; }else if(a>0&b>0&c<=0){ cout<<a<<endl; cout<<b<<endl; }else if(a>0&b<=0&c>0){ cout<<a<<endl; cout<<c<<endl; }else if(a<=0&b>0&c>0){ cout<<b<<endl; cout<<c<<endl; }else if(a>0&b<=0&c<=0){ cout<<a; }else if(a<=0&b<=0&c>0){ cout<<c; }else if(a<=0&b<=0&c<=0){ cout<<" "; }else if(a<=0&b>0&c<0){ cout<<b; }else{ cout<<a<<endl; cout<<b<<endl; cout<<c<<endl; } }

#include <iostream> using namespace std; int main() { int a,s,d; cin>>a>>s>>d; if(a>0){ cout<<a<<endl; }if(s>0){ cout<<s<<endl; }if(d>0){ cout<<d<<endl; } return 0; }