1.
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
#include<stdio.h>
int main()
{
int i,j,k,n;
printf("enter numbers = ") ;
scanf("%d",&n);
for(i=0; i<n; i++)
{
for(j=1; j<=n-i; j++)
{
printf(" ");
}
k=1;
for(j=0; j<=i; j++)
{
printf(" %d",k);
k=k*(i-j)/(j+1);
}
printf("\n");
}
return 0;
}
///////////////////////////////////////
2.
enter numbers = 5
1
121
12321
1234321
123454321
#include<stdio.h>
int main()
{
int i,j,k=1,n;
printf("enter numbers = ");
scanf("%d",&n);
for(i=1; i<=n; i++)
{
for(j=n-i; j>=1; j--)
{
printf(" ");
}
for(j=1; j<=i; j++)
{
printf("%d",j);
}
for(j=i-1;j>=1;j--)
{
printf("%d",j);}
printf("\n");
}
}
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