#include<bits/stdc++.h> using namespace std; int main(){ int a; cin>>a; if(a==0){ cout<<"零"; }else if(a>0){ cout<<"正數"; }else{ cout<<"負數"; } }
#include<bits/stdc++.h> using namespace std; int main(){ int a; cin>>a; if(a==0){ cout<<"零"; }else if(a>0){ cout<<"正數"; }else{ cout<<"負數"; } }
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