//Code:
#include
#include
void main()
{
int i,j,n,sum=0,k;
clrscr();
printf("\n Enter the no. of row : ");
scanf("%d",&n);
for(i=1;i<=n;i++)
{
for(j=n-i;j>0;j--)
printf(" ");
for(k=1;k<=i;k++)
{
sum=sum+1;
printf("%2d",sum);
}
printf("\n");
}
getch();
}
/*Output:
Enter the no. of row : 6
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
16 17 18 19 20 21
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