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LeetCode-412-Fizz-Buzz.java
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LeetCode-412-Fizz-Buzz.java
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class Solution {
// 1. Using %
// public List<String> fizzBuzz(int n) {
// List<String> res = new ArrayList<>();
// for (int i = 1; i <= n; i++) {
// String str = "";
// if (i % 3 != 0 && i % 5 != 0) {
// str = i + "";
// } else {
// if (i % 3 == 0) {
// str += "Fizz";
// }
// if (i % 5 == 0) {
// str += "Buzz";
// }
// }
// res.add(str);
// }
// return res;
// }
// 2. Iterative
public List<String> fizzBuzz(int n) {
List<String> res = new ArrayList<>();
for (int i = 1, fizz = 0, buzz = 0; i <= n; i++) {
fizz++;
buzz++;
if (fizz == 3 && buzz == 5) {
res.add("FizzBuzz");
fizz = 0;
buzz = 0;
} else if (fizz == 3) {
res.add("Fizz");
fizz = 0;
} else if (buzz == 5) {
res.add("Buzz");
buzz = 0;
} else {
res.add(String.valueOf(i));
}
}
return res;
}
// Follow-Up: How to make the approach more extensible?
/*
https://leetcode.com/problems/fizz-buzz/discuss/89936/Java-Fuzz-Buzz-Follow-up(no-if-else-and-extendable)
*/
}