#include <stdio.h>

int fatorial(int a)
{
    int j,m,z=1;
    j=square(a);
    for(m=j;m>0;m--)
        z*=m;
    return z;
}

int square(int b)
{
    int q;
    q=b*b;
    return q;
}

int main()
{
   
    int i,k,s=0,n;
    printf("计算s=(2^2)!+(3^2)!+…+(n^2)!请输入n:\n");
    scanf("%d",&n);
    do
    {
        printf("error,请重新输入n:\n");
        scanf("%d",&n);
    }while(n<2);
    for(i=2;i<=n;i++)
    {
        k=factorial(i);
        s+=k;
    }
    printf("s=(2^2)!+(3^2)!+…+(%d^2)!=%d",n,s);
}


--------------------Configuration: text - Win32 Debug--------------------
Linking...
text.obj : error LNK2001: unresolved external symbol _factorial
Debug/text.exe : fatal error LNK1120: 1 unresolved externals
执行 link.exe 时出错.

text.exe - 1 error(s), 0 warning(s)

是我代码出问题了，打扰各位大佬了、