li18.3

#include<bits/stdc++.h>
#include <iostream>
#include <cstdio>
using namespace std;
int card,em;
int main()
{cin>>card>>em;
cout<<(em-1)/card+1;
      return 0;
}

li18.2

#include<bits/stdc++.h>
using namespace std;
int n,a,b;
int main()
{cin>>a>>n>>b;
cout<<"min="<<(n<a?a<b?n:b : a<b?a:b);
      return 0;
}

li18.1

#include<bits/stdc++.h>
using namespace std;
int n,a;
int main()
{cin>>a>>n;
3*a+n*60>=480?cout<<"Yes":cout<<"No";
      return 0;
}

lian17.3

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


      return 0;
}

lian16.2

#include<bits/stdc++.h>
using namespace std;

int n;
int main()
{cin>>n;
if(n%2==0)cout<<"odd";
else     cout<<"even";
      return 0;
}

lian16.1

#include<bits/stdc++.h>
using namespace std;

int n;
int main()
{cin>>n;
if(n>=20)cout<<"跳绳达人！";
else     cout<<"继续努力！";
      return 0;
}

li16.3

#include<bits/stdc++.h>
using namespace std;

double n;
int main()
{cin>>n;
if(n<=20) printf("%.2lf",n*1.68);
if(n>20) printf("%.2lf",n*1.98);
      return 0;
}

lian15.1

#include<bits/stdc++.h>
using namespace std;

char c;
bool b;
int main()
{cout<<sizeof(b)<<" "<<sizeof(c);
      return 0;
}

练15.3

#include<bits/stdc++.h> using namespace std;

int a,b,c,maxx; int main() {cin>>a>>b>>c; maxx=a; if(b>maxx) maxx=b;if(c>maxx) maxx=c; cout<<maxx; return 0; }

15.3

#include<bits/stdc++.h>
using namespace std;

int a,b,c,maxx;
int main()
{cin>>a>>b>>c;
maxx=a;
if(b>maxx) maxx=b;if(c>maxx) maxx=c;
cout<<maxx;
return 0;
}

15.3

#include<bits/stdc++.h>
using namespace std;

int a,b,c,maxx;
int main()
{cin>>a>>b>>c;
maxx=a;
if(b>maxx) maxx=b;if(c>maxx) maxx=c;
cout<<maxx;
return 0;
}

例15.2

#include<bits/stdc++.h>
using namespace std;

int a;
int main()
{cin>>a;
if(a%2==0) cout<<"yes";
      return 0;
}

例15.1

#include<bits/stdc++.h>
using namespace std;
bool b;
int a;
int main()
{cin>>a;
b=a;
a=b;
cout<<a;

      return 0;
}

li18.3

#include<bits/stdc++.h>
#include <iostream>
#include <cstdio>
using namespace std;
int card,em;
int main()
{cin>>card>>em;
cout<<(em-1)/card+1;
      return 0;
}