C++作业4

#include<iostream>
using namespace std;
int main()
{
int x,y,m,n;
for(x=0;x<10;x++)
{
for(y=0;y<x;y++)
{
m=y+1;
n=x*m;
cout<<m<<"*"<<x<<"="<<n<<' ';
}
cout<<endl;
}
return 0;
}

#include<iostream>
using namespace std;
void main()
{
int a,b,c,d,e;
for(a=0;a<=4;a++)
cout<<" ";
cout<<"*";
cout<<endl;
for(b=0;b<=3;b++)
{
for(c=0;c<4-b;c++)
cout<<" ";
cout<<"*";
for(d=0;d<=2*b;d++)
cout<<" ";
cout<<"*";
cout<<endl;
}
for(e=0;e<=10;e++)
cout<<"*";
cout<<endl;
}

#include<iostream>
using namespace std;
void main()
{
double b,c,d;
for(b=0;b<=20;b++)
for(c=0;c<=33;c++)
for(d=0;d<=300;d++)
if(5*b+3*c+d/3==100 && b+c+d==100)
cout<<"鸡翁"<<b<<"只 鸡母"<<c<<"只 鸡雏"<<d<<"只\n";
}