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			28 lines
		
	
	
		
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<p>给两个整数数组 <code>nums1</code> 和 <code>nums2</code> ,返回 <em>两个数组中 <strong>公共的</strong> 、长度最长的子数组的长度 </em>。</p>
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<p> </p>
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<p><strong>示例 1:</strong></p>
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<pre>
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<strong>输入:</strong>nums1 = [1,2,3,2,1], nums2 = [3,2,1,4,7]
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<strong>输出:</strong>3
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<strong>解释:</strong>长度最长的公共子数组是 [3,2,1] 。
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</pre>
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<p><strong>示例 2:</strong></p>
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<pre>
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<strong>输入:</strong>nums1 = [0,0,0,0,0], nums2 = [0,0,0,0,0]
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<strong>输出:</strong>5
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</pre>
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<p> </p>
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<p><strong>提示:</strong></p>
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<ul>
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	<li><code>1 <= nums1.length, nums2.length <= 1000</code></li>
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	<li><code>0 <= nums1[i], nums2[i] <= 100</code></li>
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</ul>
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