C++作业4

#include<iostream.h>
void main()
{
	int i,j;
	for(i=0;i<=20;i++)
		for(j=0;j<=33;j++)
		{
			if(5*i+3*j+double(100-i-j)/3==100) 
			{
				cout<<"公鸡"<<i<<"只"<<"母鸡"<<j<<"只"<<"雏鸡"<<100-i-j<<"只"<<endl;
			}
		}
		
}

#include<iostream.h>
void main()
{
int  i,j;
for(i=1;i<=5;i++)
{
for(j=1;j<=6-i;j++)
cout<<" ";
	for(j=1;j<=i;j++)
	{
		if(j==1 || j==i)
	cout<<"* ";
		else
			cout<<"  ";
	}
cout<<endl;
}

for(i=1;i<=6;i++)
cout<<"* ";//cout<<"**"
cout<<endl;
}

#include<iostream.h>
void main()
{
int i,j,product;
for(i=1;i<=9;i++)
{
	for(j=1;j<=i;j++)
		cout<<j<<"*"<<i<<"="<<i*j<<"\t";
	cout<<endl;
}

}