code: https://github.com/lujinjianst/myNCCL/blob/master/exercise/exercise-14.3.c
computational results :
[haoyue@centos exercise]$ ./a.out
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
1 6 15 20 15 6 1
1 7 21 35 35 21 7 1
1 8 28 56 70 56 28 8 1
1 9 36 84 126 126 84 36 9 1
可以将10改成N, 然后输入N的值进行打印杨辉三角问题。