Question

求和1+3！+5！+7！+9！+11！用C语言解决

Answer 1

先求阶乘，然后相加，阶乘的函数如下： int arry_fal(int n) { if(n==1） return 1; else return n*arry_fal(n-1) } 然后再相加就可以了

Answer 2

#include <stdio.h>
main ()
{
int sum, temp, i;
for (i=1, sum = 0, temp=1; i<=11; i+=2) {
temp *= i;
sum += temp;
}
printf("结果是: %d\n", sum);
}

Answer 3

#include <stdio.h>int main(){
long int n, s=1, sum=0;
for(n=1; n<=11; ++n){
s *= n;
if(n%2==1)
sum += s;
}
printf("%ld\n", sum);
return 0;
}

Answer 4

#include<stdio.h>
main()
{
int i,j,t=1;
long sum=0;
for(i=1;i<=11;i+=2)
{for(j=1;j<=i;j++)<br/> t=t*j;}
sum=t+sum;
printf("%ld",sum);
}