5-500output.cpp

Visual C++的课件和一些习题及答案

#include <iostream.h>
#include <iomanip.h>
#include <math.h>
int f(int i)
{
int j,k;
for (j=2;j<=sqrt(i);j++){
    k=1;
	if (i%j)
	continue;
	k=0;
	return (k);}
}
void main()
{
	int i,count=0;
	for(i=5;i<=500;i+=2){
	if (f(i))
	{
		count++;
		cout<<setw(5)<<i;
	}
		if(count%5==0)cout<<endl;}
	cout<<endl;
}