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| class Solution {
public String simplifyPath(String path) {
Stack<String> stack = new Stack<>();
String[] arr = path.split("/");
for(String s : arr){
if (s.equals("")) {
continue;
}
if (s.equals(".")) {
continue;
}
if (s.equals("..")) {
if (!stack.isEmpty()){
stack.pop();
}
continue;
}
stack.add(s);
}
Stack<String> stack2 = new Stack<>();
while (!stack.isEmpty()) {
stack2.add(stack.pop());
}
String ans = "";
while (!stack2.isEmpty()) {
ans += "/" + stack2.pop();
}
return ans == "" ? "/" : ans;
}
}
|
