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添加(0583.两个字符串的删除操作.md):增加typescript版本
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@ -229,6 +229,67 @@ const minDistance = (word1, word2) => {
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};
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```
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TypeScript:
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> dp版本一:
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```typescript
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function minDistance(word1: string, word2: string): number {
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/**
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dp[i][j]: word1前i个字符,word2前j个字符,所需最小步数
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dp[0][0]=0: word1前0个字符为'', word2前0个字符为''
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*/
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const length1: number = word1.length,
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length2: number = word2.length;
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const dp: number[][] = new Array(length1 + 1).fill(0)
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.map(_ => new Array(length2 + 1).fill(0));
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for (let i = 0; i <= length1; i++) {
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dp[i][0] = i;
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}
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for (let i = 0; i <= length2; i++) {
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dp[0][i] = i;
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}
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for (let i = 1; i <= length1; i++) {
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for (let j = 1; j <= length2; j++) {
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if (word1[i - 1] === word2[j - 1]) {
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dp[i][j] = dp[i - 1][j - 1];
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} else {
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dp[i][j] = Math.min(dp[i - 1][j], dp[i][j - 1]) + 1;
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}
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}
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}
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return dp[length1][length2];
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};
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```
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> dp版本二:
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```typescript
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function minDistance(word1: string, word2: string): number {
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/**
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dp[i][j]: word1前i个字符,word2前j个字符,最长公共子序列的长度
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dp[0][0]=0: word1前0个字符为'', word2前0个字符为''
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*/
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const length1: number = word1.length,
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length2: number = word2.length;
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const dp: number[][] = new Array(length1 + 1).fill(0)
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.map(_ => new Array(length2 + 1).fill(0));
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for (let i = 1; i <= length1; i++) {
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for (let j = 1; j <= length2; j++) {
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if (word1[i - 1] === word2[j - 1]) {
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dp[i][j] = dp[i - 1][j - 1] + 1;
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} else {
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dp[i][j] = Math.max(dp[i][j - 1], dp[i - 1][j]);
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}
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}
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}
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const maxLen: number = dp[length1][length2];
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return length1 + length2 - maxLen * 2;
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};
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```
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-----------------------
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<div align="center"><img src=https://code-thinking.cdn.bcebos.com/pics/01二维码一.jpg width=500> </img></div>
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