Pinwheel pattern
this is what i've done so far.
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#include <iostream>
using namespace std;
int main()
{
int inp, h, st[4] = {1,0,2,0}, sp[4] = {0,0,0,0} ,i[5];
bool Cond = true;
while(Cond) {
cout << "Input a number(Odd numbers only): ";
cin >> inp;
cin.ignore();
if ( inp % 2 != 0 )
Cond = false;
}
st[1] = ((inp-3)/2)+2;
st[3] = ((inp-3)/2)+1;
sp[0] = (inp-3)/2;
sp[2] = (inp-3)/2;
for ( h = 1; h <= inp; h++ ) {
if ( h > ((inp-1)/2) && h != ((inp-1)/2)+1 ) {
for ( i[0] = 1; i[0] <= sp[2]; i[0]++ )
cout << ' ';
for ( i[1] = 1; i[1] <= st[2]; i[1]++ )
cout << '*';
for ( i[2] = 1; i[2] <= sp[3]; i[2]++ )
cout << ' ';
for ( i[3] = 1; i[3] <= st[3]; i[3]++ )
cout << '*';
sp[2] --;
st[2] ++;
st[3] --;
sp[3] ++;
cout << endl;
}
else if ( h == ((inp-1)/2)+1 ) {
for ( i[4] = 1; i[4] <= inp; i[4]++)
cout << '*';
cout << endl;
}
else {
for ( i[0] = 1; i[0] <= st[0]; i[0]++ )
cout << '*';
for ( i[1] = 1; i[1] <= sp[0]; i[1]++ )
cout << ' ';
for ( i[2] = 1; i[2] <= st[1]; i[2]++ )
cout << '*';
st[0] ++;
sp[0] --;
st[1] --;
cout << endl;
}
}
cout << endl;
cin.get();
return 0;
}
|
but i think this code is too long :o
are there any other effective way of doing this?
Thanks :)
Maybe using a macro? or a function?
Aceix.
A minor simplification, change int i[5]; to int i; and remove all the [index] where i is used.
How does this look
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#include <iostream>
using namespace std;
int main()
{
int inp;
bool Cond = true;
while(Cond) {
cout << "Input a number(Odd numbers only): ";
cin >> inp;
cin.ignore();
if ( inp % 2 != 0 )
Cond = false;
}
const int n = inp / 2;
for(int r = 0; r < inp; r++) {
for(int c = 0; c < inp; c++) {
bool d = false;
if(!d)
d = (r == n) || (c == n);
if(!d)
d = (r < n) && (c < n) && (c <= r);
if(!d)
d = (r < n) && (c > n) && (c < (inp - r));
if(!d)
d = (r > n) && (c < n) && (c > (inp - r - 2));
if(!d)
d = (r > n) && (c > n) && (c > r -1);
if(d)
cout << '*';
else
cout << ' ';
}
cout << endl;
}
cin.get();
return 0;
}
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Just playing with the code here. This is effectively the same as the code from Santosh Reddy above:
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#include <iostream>
using namespace std;
int main()
{
int inp = 0;
while ((inp&1) == 0) {
cout << "Input a number(Odd numbers only): ";
cin >> inp;
cin.ignore();
}
const int mid = inp / 2;
for (int row = 0; row < inp; row++)
{
for (int col = 0; col < inp; col++)
cout <<
(( (row == mid) || (col == mid)
|| (row < mid) && (col < mid) && (col <= row)
|| (row < mid) && (col > mid) && (col < (inp - row))
|| (row > mid) && (col < mid) && (col > (inp - row - 2))
|| (row > mid) && (col > mid) && (col > row - 1)
)?'*':' ');
cout << endl;
}
cin.get();
return 0;
}
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