#@param score: the score which is received by test-cases
#@param memory_taken: memory taken by submission
#@param time_taken: time taken by submission
#@param category: Easy(1)/Moderate(2)/Hard(3)

total_max = {
    1: 35,  # max 35 points for Easy challenge
    2: 65,  # max 65 points for Moderate challenge
    3: 100  # max 100 points for Hard challenge
}

max_memory = 20 * 1024 * 1024  # 20 MB
max_time = 10 * 1000  # 10 sec

# if submission takes more than 10 seconds
# or uses more than 20MB of memory
# the score is 0
if memory_taken > max_memory or time_taken > max_time:
    return 0

max_total_score = total_max[category]

memory_factor = 1 - memory_taken/max_memory
time_factor = 1 - time_taken/max_time
factor = (memory_factor + time_factor)/2

return score * max_total_score * factor / 100.