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Oct 30, 2018
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011.Container With Most Water (java) #72

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18 changes: 18 additions & 0 deletions solution/011.Container With Most Water/Solution.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,18 @@
class Solution {
public int maxArea(int[] height) {
int start = 0, end = height.length - 1, maxArea = 0;
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@yanglbme yanglbme Oct 30, 2018

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虽然题目没有说明是否有非空的情况，但如果从程序健壮性/实际应用的角度来看，加以下一小段代码是有必要的噢~

if (height == null || height.length < 2) {
    return 0;
}

否则当传入 null 时，程序直接抛 NPE。

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@bluesword12350 bluesword12350 Oct 30, 2018

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image
题目中恰好有提到 数组长度至少为2。

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@bluesword12350 bluesword12350 Oct 30, 2018

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image

while (start < end) {
int hs = height[start];
int he = height[end];
int l = end - start;
if (hs > he) {
maxArea = Math.max(he * l, maxArea);
end--;
} else {
maxArea = Math.max(hs * l, maxArea);
start++;
}
}
return maxArea;
}
}