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How to determine if the string has all unique characters using C#?
To determine if a string has unique characters or not, firstly check a word in the string with the next word −
for (int j = i + 1; j < val.Length; j++) {
if (val[i] == val[j])
}If you find a match, that would mean the string do not have unique characters.
If you are unable to find a match, then the string has all unique characters.
In case of a match, return false i.e. unique characters not found −
for (int j = i + 1; j < val.Length; j++) {
if (val[i] == val[j])
return false;
}
Updated on 20-Jun-2020 16:21:24
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