Q1:
A mathematical problem:
x1 x2 ... xn belongs to nonnegative integer (x1 x2 ... xn >= 0)
x1 >= x2 >= x3 >= ... >= xn
x1 + x2 + x3 + ... + xn = n
How many number of solution set meet the above conditions.
Q2:
A mathematical problem:
x1 x2 ... xn belongs to positive integer (x1 x2 ... xn >= 1)
x1 >= x2 >= x3 >= ... >= xn
x1 + x2 + x3 + ... + xn = k
How many number of solution set meet the above conditions.