# 15-110 Fall 2013
# Sample Answers for Lab Exam 1 


def f1(x, y):
    count = 0
    for i in range(x, y + 1):
        if i % 3 == 0:
            count = count + 1
    return count 

def f2(list):
    minimum = list[0]
    for i in range(1, len(list)):
        if list[i] < minimum:
            minimum = list[i]
    return minimum

def f3(list):
    for i in range(0, len(list)):
        for j in range(0, list[i]):
            print("X", sep = "", end = "")
        print(" ", list[i], sep = "")

def f4(list):
    cumulative_sum = []
    cumulative_sum.append(list[0])
    for i in range(1, len(list)):
        cumulative_sum.append(cumulative_sum[i-1] + list[i])
    return cumulative_sum