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#include<bits/stdc++.h>
using namespace std;
int n;
int main()
{
cin>>n;
(n==0)?(cout<<"zero"):(n>0?(cout<<"positive"):(cout<<"negative"));
cout<<endl;
return 0;
}
#include <bits/stdc++.h>
using namespace std;
double N;
int main()
{
cin>>N;
cout<<setiosflags(ios::fixed)<<setprecision(2);
if(N>=0) cout<<N<<endl;
else cout<<-N<<endl;
return 0;
}
#include<bits/stdc++.h>
using namespace std;
int N;
int main()
{
cin>>N;
if(N%2) cout<<"odd"<<endl;
else cout<<"even"<<endl;
return 0;
}
#include<bits/stdc++.h>
using namespace std;
char ch;
int main()
{
scanf("%c",&ch);
if (ch%2==0) cout<<"NO"<<endl;
else cout<<"YES"<<endl;
return 0;
}
#include<bits/stdc++.h>
using namespace std;
int a,b;
int main()
{
cin>>a>>b;
if(a>b) cout<<">";
else if(a<b) cout<<"<";
else if(a=b) cout<<"=";
return 0;
}
#include<bits/stdc++.h>
using namespace std;
int n;
int main()
{
cin>>n;
if(n>=10&&n<=99) cout<<1<<endl;
else cout<<0<<endl;
return 0;
}
#include<bits/stdc++.h>
using namespace std;
int x,y;
int main()
{
cin>>x>>y;
if(x>=10||y>=20) cout<<1<<endl;
else cout<<0<<endl;
return 0;
}
#include<bits/stdc++.h>
using namespace std;
int n;
int main()
{
cin>>n;
if((n%3==0)&&(n%5==0)) cout<<"YES"<<endl;
else cout<<"NO"<<endl;
return 0;
}
#include<bits/stdc++.h>
using namespace std;
int n,t;
int main()
{
cin>>n;
t=0;
if(n%3==0) t=1;
if(n%5==0) t=2;
if(n%7==0) t=3;
if((n%3==0)&&(n%5==0)) t=4;
if((n%3==0)&&(n%7==0)) t=5;
if((n%5==0)&&(n%7==0)) t=6;
if((n%3==0)&&(n%5==0)&&(n%7==0)) t=7;
switch (t)
{
case 1:
cout<<"3"<<endl;
break;
case 2:
cout<<"5"<<endl;
break;
case 3:
cout<<"7"<<endl;
break;
case 4:
cout<<"3 5"<<endl;
break;
case 5:
cout<<"3 7"<<endl;
break;
case 6:
cout<<"5 7"<<endl;
break;
case 7:
cout<<"3 5 7"<<endl;
break;
default:
cout<<"n"<<endl;
}
return 0;
}
#include<bits/stdc++.h>
using namespace std;
int chinese,math;
int main()
{
cin>>chinese>>math;
if((chinese>=60&&math<60)||(math>=60&&chinese<60)) cout<<1<<endl;
else cout<<0<<endl;
return 0;
}
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信息学奥赛一本通---第三章---程序的控制结构--- 1049-1058 (第二节)题解
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