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path: root/backspace_string_compare.cpp
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#include "leetcode.h"

class Solution {
public:
  bool backspaceCompare(string s, string t) {
    int k = 0, p = 0;
    for (int i = 0; i < s.size(); i++) {
      if (s[i] == '#') {
        k--;
        k = max(0, k);
      } else {
        s[k] = s[i];
        k++;
      }
    }
    for (int i = 0; i < t.size(); i++) {
      if (t[i] == '#') {
        p--;
        p = max(0, p);
      } else {
        t[p] = t[i];
        p++;
      }
    }
    if (k != p)
      return false;
    else {
      for (int i = 0; i < k; i++)
        if (s[i] != t[i])
          return false;
      return true;
    }
  }
};

int main() {}