为什么语句中的while那一个循环语句没有运行，结果不管怎么样都是一

Question

#include <stdio.h>
#define max 1000
int main()
{
int n, f,i,m,g,c,num;
scanf_s("%d", &n);
int a[max]; m = 0; c = 0; num = 0;
for (i = 0; i <= (n - 1); i++)
a[i]=scanf_s("%d",&f);
while (m < n)
{
g = a[c];
if (a[m] == g)
m = m + 1;
else
{
c = m; m = m + 1; num = num + 1;
}
}
num = num + 1;
printf("%d", num);
return 0;
}

Answer 1

哪里没有运行