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c語言實現(xiàn)組合數(shù) C語言求組合數(shù)?

C語言求組合數(shù)?double fact(long num){for(long i=1 num> 0 num--){i*=num}}int main(){long m long n long C s

C語言求組合數(shù)?

double fact(long num){for(long i=1 num> 0 num--){i*=num}}int main(){long m long n long C scanf(%ld%ld,&m,&n)C=fact(n)/((fact(m))*fact(n-m))printf(%ld,C)return 0}

#include

void main()

{

void choose(int a,int)b)

int a。因此,0,0的結尾是整數(shù),0,0的結尾是0的結尾,0是整數(shù)。這是0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,b) ,temp)

用c語言編程,求組合數(shù)?

有很多算法需要實現(xiàn)。這是一個沒有遞歸的算法,需要設計兩個函數(shù)。unsignedlongfactorial(unsignedlongn)longlongperm(unsignedlongm,unsignedlongn)unsignedlongfactorial(unsignedlongn){unsignedlongvalue=(n==0)?1:n while(n>=2)value*=--n returnvalue}longlongperm(unsignedlongm,unsignedlongn){if(m>n)return-1 else return(unsignedlong)(階乘(n)/階乘(n-m))}僅為m>n返回-1有點浪費。注意評價范圍。如有必要,它可以擴展到Int64。。。