1-33选7个数和为78有那些排列，不可以重复

不论顺序的组合数为14917
考虑顺序的话,排列数为
14917再乘以7的阶乘得75181680

具体组合方式没有办法全部传上来,传一部分你看看了.规律自己总结:

{{1,2,3,4,5,31,32},
{1,2,3,4,6,30,32},
{1,2,3,4,7,29,32},
{1,2,3,4,7,30,31},
{1,2,3,4,8,28,32},
{1,2,3,4,8,29,31},
{1,2,3,4,9,27,32},
{1,2,3,4,9,28,31},
{1,2,3,4,9,29,30},
{1,2,3,4,10,26,32},
{1,2,3,4,10,27,31},
{1,2,3,4,10,28,30},
{1,2,3,4,11,25,32},
{1,2,3,4,11,26,31},
{1,2,3,4,11,27,30},
{1,2,3,4,11,28,29},
{1,2,3,4,12,24,32},
{1,2,3,4,12,25,31},
{1,2,3,4,12,26,30},
{1,2,3,4,12,27,29},
{1,2,3,4,13,23,32},
{1,2,3,4,13,24,31},
{1,2,3,4,13,25,30},
{1,2,3,4,13,26,29},
{1,2,3,4,13,27,28},
{1,2,3,4,14,22,32},
{1,2,3,4,14,23,31},
{1,2,3,4,14,24,30},
{1,2,3,4,14,25,29},
{1,2,3,4,14,26,28},
{1,2,3,4,15,21,32},
{1,2,3,4,15,22,31},
{1,2,3,4,15,23,30},
{1,2,3,4,15,24,29},
{1,2,3,4,15,25,28},
{1,2,3,4,15,26,2