Pyramid :
1.
*
*A*
*A*A*
*A*A*A*
*A*A*A*A*
#include<stdio.h>
int main()
{
int i,j;
for(i=1; i<=5; i++)
{
for(j=1; j<=5-i; j++)
{
printf(" ");
}
for(j=1; j<=(2*i-1); j++)
{
if(j%2==0)
printf("A");
else
printf("*");
}
printf("\n");
}
return 0;
}
////////////////////////////////////////////////////////////////
2.
*
***
*****
*******
*********
3.
enter numbers = 5
1
232
34543
4567654
567898765
#include<stdio.h>
int main()
{
int i,j,k,n;
printf("enter numbers = ");
scanf("%d",&n);
for(i=1; i<=n; i++)
{
k=i;
for(j=1;j<=2*n-1;j++)
{
if(j>=(n+1)-i && j<=(n-1)+i)
{
printf("%d",k);
j<n?k++:k--;
}
else
printf(" ");
}
printf("\n");
}
return 0;
}
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