为什么我没有从以下程序中获得最小值（使用函数和数组）

I was trying to find the maximum and minimum value using arrays and function. I was able to get the maximum value, however, minimum doesn't seen to be popping up. its giving some random number which i believe is an inode number. How do i get the minimum value from the following program?I was trying to find the maximum and minimum va