section2. 최솟값 구하기

arr = [5, 3, 7, 9, 2, 5, 2, 6]
arrMin = float('inf') # 파이썬에서 가장 큰 값 초기화
for i in range(len(arr)):
    if arr[i] < arrMin:
        arrMin = arr[i]
print(arrMin)   

arr = [5, 3, 7, 9, 2, 5, 2, 6]
arrMin = arr[0]
for i in range(1, len(arr)):
    if arr[i] < arrMin:
        arrMin = arr[i]
print(arrMin)

arr = [5, 3, 7, 9, 2, 5, 2, 6]
arrMin = float('inf')
for i in arr:
    if arr[i] < arrMin:
        arrMin = arr[i]
print(arrMin)