调用函数求阶乘的和
#include<stdio.h>
double fact(int n
);
int main(void)
{
int i
;
double sum
;
sum
=0;
for(i
=1;i
<=100;i
++)
sum
=sum
+fact(i
);
printf("1!+2!+...+100!=%e\n",sum
);
return 0;
}
double fact(int n
)
{
int i
;
double result
;
result
=1;
for(i
=1;i
<=n
;i
++)
result
=result
*i
;
return result
;
}
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