Fill in the blanks with the code: the coefficients of each item in the expansion of the nth power of (a + b) are very regular. These coefficients form the famous Yang Hui triangle The following program gives the calculation method of the nth coefficient of the m-th layer, try to perfect it (m, n are calculated from 0) \x05public static int f(int m,int n) \x05{ \x05\x05if(m==0) return 1; \x05\x05if(n==0 || n==m) return 1; \x05\x05return __________________________ ;

Fill in the blanks with the code: the coefficients of each item in the expansion of the nth power of (a + b) are very regular. These coefficients form the famous Yang Hui triangle The following program gives the calculation method of the nth coefficient of the m-th layer, try to perfect it (m, n are calculated from 0) \x05public static int f(int m,int n) \x05{ \x05\x05if(m==0) return 1; \x05\x05if(n==0 || n==m) return 1; \x05\x05return __________________________ ;

(m - 1)![1/(m - n - 1)!/n!+ 1/(m - n)!/(n - 1)!]
Factorial has another function to write