- C
- C++
- Java
- C#
- Python
C
#include <stdio.h>
int main()
{
int n = 7; // odd prefer
int i,j;
int x = n / 2, y = 1;
for(i = 1; i <= n; i++)
{
for (j = 1; j <= x; j++)
{
printf(" ");
}
for (int k = 1; k <= y; k++)
{
printf("%2d", i);
}
if (i <= n / 2)
{
x--;
y += 2;
}
else
{
x++;
y -= 2;
}
printf("\n");
}
return 0;
}