摘要：
1.#includedouble fact(int n);int main(void){ int i; double sum; sum=0; for(i=1;ifloat fact(int n);int main(void){int m,n;float num1,result;printf("Enter m:");scanf("%d",&m); printf("Enter n:");scanf("%d",&n);num1=fact(m-n);result=fact(n)/(fact(m)*num1) 阅读全文