American Express String Questions

6 string problems asked at American Express interviews

Easy (4)Medium (2)

Questions

Title	Difficulty	Acceptance	Frequency
Minimum Deletions to Make Character Frequencies Unique	Medium	61.4%	100.0%
Percentage of Letter in String	Easy	75.1%	95.5%
Valid Anagram	Easy	67.8%	78.3%
Longest Substring Without Repeating Characters	Medium	38.5%	72.7%
Isomorphic Strings	Easy	48.1%	55.6%
Longest Common Prefix	Easy	47.1%	55.6%

Showing 6 questions