擅长:python、mysql、java
<p>试试这个:</p>
<pre><code>yields = [5, 3, 7, 9, 3, 3, 7, 108, 66, 16, 5, 3, 7, 3]
numOfCows = int(len(yields) / 7) ## /7 as there are 7 days in a week
for i in range(numOfCows): ## For every cow
for j in range(4): ## There are four possible spans to be checked
span = yields[ (i * 7) + j : (i * 7) + j + 4 ] ## Get the four-day period
if sum(span) < 12: ## If the sum of the span is smaller than 12 litres
print("Cow " + str(i + 1)) ## Print the cow number
</code></pre>