C program to print the following pattern : 1 2 6 3 7 10 4 8 11 13 5 9 12 14 15

C program to print the following pattern :

1

2 6

3 7 10

4 8 11 13

5 9 12 14 15

Solution:

#include <stdio.h> #include <stdlib.h> int main(void) { int n,i,j,k,x; scanf("%d",&n); for(i=1;i<=n;i++) { k=4; printf("%d ",i); x=i; for(j=2;j<=i;j++) { printf("%d ",x+k); x=x+k; k--; } printf("\n"); } return 0; }