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42 lines
1.9 KiB
HTML
42 lines
1.9 KiB
HTML
<p>You are given two strings <code>s</code> and <code>t</code> of the same length and an integer <code>maxCost</code>.</p>
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<p>You want to change <code>s</code> to <code>t</code>. Changing the <code>i<sup>th</sup></code> character of <code>s</code> to <code>i<sup>th</sup></code> character of <code>t</code> costs <code>|s[i] - t[i]|</code> (i.e., the absolute difference between the ASCII values of the characters).</p>
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<p>Return <em>the maximum length of a substring of </em><code>s</code><em> that can be changed to be the same as the corresponding substring of </em><code>t</code><em> with a cost less than or equal to </em><code>maxCost</code>. If there is no substring from <code>s</code> that can be changed to its corresponding substring from <code>t</code>, return <code>0</code>.</p>
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<p> </p>
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<p><strong class="example">Example 1:</strong></p>
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<pre>
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<strong>Input:</strong> s = "abcd", t = "bcdf", maxCost = 3
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<strong>Output:</strong> 3
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<strong>Explanation:</strong> "abc" of s can change to "bcd".
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That costs 3, so the maximum length is 3.
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</pre>
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<p><strong class="example">Example 2:</strong></p>
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<pre>
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<strong>Input:</strong> s = "abcd", t = "cdef", maxCost = 3
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<strong>Output:</strong> 1
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<strong>Explanation:</strong> Each character in s costs 2 to change to character in t, so the maximum length is 1.
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</pre>
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<p><strong class="example">Example 3:</strong></p>
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<pre>
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<strong>Input:</strong> s = "abcd", t = "acde", maxCost = 0
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<strong>Output:</strong> 1
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<strong>Explanation:</strong> You cannot make any change, so the maximum length is 1.
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</pre>
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<p> </p>
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<p><strong>Constraints:</strong></p>
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<ul>
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<li><code>1 <= s.length <= 10<sup>5</sup></code></li>
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<li><code>t.length == s.length</code></li>
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<li><code>0 <= maxCost <= 10<sup>6</sup></code></li>
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<li><code>s</code> and <code>t</code> consist of only lowercase English letters.</li>
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</ul>
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