# LeetCode and my own PC give different results! :(

• My solution is as below. Let the input be "dir\n\tsubdir1\n\tsubdir2\n\t\tfile.ext". LeetCode gives 32 after execution, but I got 20 when running on my own computer. Any one can knows the reason? Thanks!
'''
class Solution {

``````public int lengthLongestPath(String input) {
int n = input.length();
int p = 0, q = 0;
String seg = "";
String[] name = new String[] { "" };
int maxlen = 0;
Stack<String> stack = new Stack<>();
int stacklen = 0;
while (p < n) {
q = input.indexOf("\\n", p + 1);
seg = q == -1 ? input.substring(p, n) : input.substring(p, q);
int lv = level(seg, name);
while (!stack.isEmpty() && lv <= stack.size() - 1) {
String dir = stack.pop();
stacklen -= dir.length() + 1;
}
if (name[0].contains(".")) {
maxlen = Math.max(maxlen, stacklen + name[0].length());
} else {
stack.push(name[0]);
stacklen += name[0].length() + 1;
}
p = q == -1 ? n : q;
}
return maxlen;
}

private int level(String seg, String[] name) {
if (seg.equals("") || seg.charAt(0) != '\\') {
name[0] = seg;
return 0;
}
int lv = 0;
int p = 2;
while (seg.charAt(p) == '\\') {
lv++;
p += 2;
}
name[0] = seg.substring(p);
return lv;
}
``````

}
'''

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