diff --git a/problems/0072.编辑距离.md b/problems/0072.编辑距离.md index 8e6e0187..7e27a3d5 100644 --- a/problems/0072.编辑距离.md +++ b/problems/0072.编辑距离.md @@ -204,7 +204,40 @@ Python: Go: - +```Go +func minDistance(word1 string, word2 string) int { + m, n := len(word1), len(word2) + dp := make([][]int, m+1) + for i := range dp { + dp[i] = make([]int, n+1) + } + for i := 0; i < m+1; i++ { + dp[i][0] = i // word1[i] 变成 word2[0], 删掉 word1[i], 需要 i 部操作 + } + for j := 0; j < n+1; j++ { + dp[0][j] = j // word1[0] 变成 word2[j], 插入 word1[j],需要 j 部操作 + } + for i := 1; i < m+1; i++ { + for j := 1; j < n+1; j++ { + if word1[i-1] == word2[j-1] { + dp[i][j] = dp[i-1][j-1] + } else { // Min(插入,删除,替换) + dp[i][j] = Min(dp[i][j-1], dp[i-1][j], dp[i-1][j-1]) + 1 + } + } + } + return dp[m][n] +} +func Min(args ...int) int { + min := args[0] + for _, item := range args { + if item < min { + min = item + } + } + return min +} +```