comefrom: <awangdev>K Edit Distance_1.java
code: private boolean validate(String word, String target, int k) {
  
          if (word.equals(target)) {
              return true;
          }
          if (Math.abs(word.length() - target.length()) > k) {
              return false;
          }
          
          int m = word.length();
          int n = target.length();
          
          int[][] dp = new int[2][n + 1];
          
          for (int i = 0; i <= m; i++) {
              for (int j = 0; j <= n; j++) {
                  if (i == 0) {
                      dp[i % 2][j] = j;
                      continue;
                  }
                  if (j == 0) {
                      dp[i % 2][j] = i;
                      continue;
                  }
                  
                  dp[i % 2][j] = Math.min(dp[(i - 1) % 2][j - 1], Math.min(dp[i % 2][j - 1], dp[(i - 1) % 2][j])) + 1;
                  if (word.charAt(i - 1) == target.charAt(j - 1)) {
                      dp[i % 2][j] = Math.min(dp[i % 2][j], dp[(i - 1) % 2][j - 1]);
                  }
              }
          }
          return dp[m % 2][n] <= k;
      }
masked: private boolean var_0 ( String var_1 , String var_2 , int var_3 ) {
    if ( var_1 . equals ( var_2 ) ) {
      return true ;
    }
    if ( Math . abs ( var_1 . length ( ) - var_2 . length ( ) ) > var_3 ) {
      return false ;
    }
    int var_4 = var_1 . length ( ) ;
    int var_5 = var_2 . length ( ) ;
    int [ ] [ ] var_6 = new int [ 2 ] [ var_5 + 1 ] ;
    for ( int var_7 = 0 ;
    var_7 <= var_4 ;
    var_7 ++ ) {
      for ( int var_8 = 0 ;
      var_8 <= var_5 ;
      var_8 ++ ) {
        if ( var_7 == 0 ) {
          var_6 [ var_7 % 2 ] [ var_8 ] = var_8 ;
          continue ;
        }
        if ( var_8 == 0 ) {
          var_6 [ var_7 % 2 ] [ var_8 ] = var_7 ;
          continue ;
        }
        var_6 [ var_7 % 2 ] [ var_8 ] = Math . min ( var_6 [ ( var_7 - 1 ) % 2 ] [ var_8 - 1 ] , Math . min ( var_6 [ var_7 % 2 ] [ var_8 - 1 ] , var_6 [ ( var_7 - 1 ) % 2 ] [ var_8 ] ) ) + 1 ;
        if ( var_1 . charAt ( var_7 - 1 ) == var_2 . charAt ( var_8 - 1 ) ) {
          var_6 [ var_7 % 2 ] [ var_8 ] = Math . min ( var_6 [ var_7 % 2 ] [ var_8 ] , var_6 [ ( var_7 - 1 ) % 2 ] [ var_8 - 1 ] ) ;
        }
      }
    }
    return var_6 [ var_4 % 2 ] [ var_5 ] <= var_3 ;
  }
  