求出数列1，-3!,5!,-7!...前n项的值，n的值由键盘输入。

Question

#include<stdio.h>
main()
{
int a,b,i,j,n,sum=0;
j=1;
printf("put i=");
scanf("%d",&i);
while(j<=i)
{n=2j-1;
j++;
for(a=1,b=1;a<=n;a++)
{
b=b*a;
}
if(i%2==0)b=-b;
else b=b;
sum=sum+b;
}
printf("值是%d",sum);
}
27 4 C:\Users\bbillkin0326\Documents\作业.cpp [Error] cannot convert 'complex int' to 'int' in assignment
应该怎么改正，我脑壳都要抠爆了都想不出，995

Answer 1

你的for循环都没进去