Can you optimize the algoritm which you wrote.

Question

Sigiloso · Accepted Answer

With hash table is fastest

Alina · Answer

sub anagram_part {
	my ( $str, $substr ) = @_;
	my @str = split //, $str;
	my @substr = split //, $substr;
	L: while ( @str && @substr ) {
		my $cl = shift @substr;
		while ( my $c = shift @str ) {
			goto L if $cl eq $c;
		}
		return 0;
	}
	return 0 if scalar @substr;
	return 1;
}

Sigiloso · Answer

public static boolean check(String original, String subString) {
		if(original == null || subString == null) {
			return false;
		}
		if("".equals(subString)) {
			return true;
		}
		
		int positionAtOriginal = 0;
		
		for(int i = 0; i < subString.length(); i++) {
			char currentChar = subString.charAt(i);
			boolean findCurrentChar = false;
			while(positionAtOriginal < original.length()) {
				if(original.charAt(positionAtOriginal) == currentChar) {
					findCurrentChar = true;
				}
				positionAtOriginal++;
				if(findCurrentChar) {
					break;
				}
			}
			
			if(!findCurrentChar) {
				return false;
			}
			
		}
		return true;
	}

Sigiloso · Answer

# python

def doit(s, subs):
  h = {}
  for c in s:
    if c in h:
      h[c] += 1
    else:
      h[c] = 1
  for c in subs:
    if c not in h or h[c] == 0:
      return False
    h[c] -= 1
  return True

Sigiloso · Answer

# Python
def is_partial_anagram(word, partial):
    return set(partial).issubset(set(word))

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