HELP! Create a function that removes all but the first occurrence of each character in the string. Leave notes if you can. THANK YOU!! // Removes all but the first occurrence of each character in the string. // For instance: // "abcda" becomes "abcd" (2nd occurrence of 'a' removed) // "aabbcc" becomes "abc" (2nd occurrences of 'a', 'b', 'c' removed) // " a b c " becomes " abc" (2nd through 8th occurrences of ' ' removed) // "!a!a!b!b!c!c" becomes "!abc" (2nd through 6th occurrences of '!' removed, // 2nd occurrences of 'a', 'b', 'c' removed) string remove_repeats(string s);