Count and Say 2021-06-07 20:03
public String countAndSay(int n) {
String res = "1";
for (int i = 1; i < n; i++) {
StringBuilder tempStr = new StringBuilder();
for (int j = 0; j < res.length(); j++) {
int count = 1;
while (j < res.length() - 1 && res.charAt(j) == res.charAt(j + 1)) {
j++;
count++;
}
tempStr.append(count).append(res.charAt(j));
}
res = tempStr.toString();
}
return res;
}
| Runtime | Memory |
|---|---|
| 5 ms | 36.6 MB |
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