별 찍기

 

* 별 찍기

 

int main()
{
     int i,j,k,num;
 
     cout<<"Input Number : ";
     cin>>num;

     for(i=1; i<=num; i++)
     {
          for(j=num-1; j>=i; j--)
          {
               cout<<" ";
          }
          for(k=1; k<=i*2-1; k++)
          {
               cout<<"*";
          }     
          cout<<endl;

}
 return 0;

}

 

 

 

---

 #난이도 上

 

#include <iostream>
using namespace std;

int main()
{
 int i,j,k,num;
 
 cout<<"input number : ";
 cin>>num;
 
 for(i=1;i<=num;i++)
 { 
  if(i==1 || i==num)
  {       
    for(j=1;j<=num/2;j++)
    { 
     cout<<" ";
    }
    cout<<"*"<<endl;
  }
  else if(i>=2 && i<=num/2+1)
  {       
    for(j=i; j<=num/2; j++)
    {     
     cout<<" ";
    }

    cout<<"*";

    for(j=i+i-3; j>=1; j--) 
    {                          
     cout<<" ";
    }
    cout<<"*"<<endl;
  }
  else
  {
    for(j=i; j>=num/2+2; j--)
    {         
     cout<<" ";
    }
    cout<<"*";
    
    k=num-i+1;

    for(j=k+k-3; j>=1; j--)
    {          
     cout<<" ";
    }
    cout<<"*"<<endl;
  }

 }

 return 0;
}