Submission #468988

#	Time	Username	Problem	Language	Result	Execution time	Memory
468988		paga2004	Palindromic Partitions (CEOI17_palindromic)	C++14	60 / 100	10098 ms	1384 KiB

palindromic

#include <bits/stdc++.h>

#ifdef LOCAL
#define dbg(x) //  cerr << "dgb: " << x << "\n";
#else
#define dbg(x)
#endif

#define int int_fast64_t

using namespace std;

string s;

bool compare(int l, int r, int len) {
  for (int i = len - 1; i >= 0; i--) {
    if (s[l + i] != s[r + i])
      return false;
  }
  return true;
}
signed main() {
  ios_base::sync_with_stdio(false);
  cin.tie(nullptr);

  int t;
  cin >> t;
  while (t--) {
    s.clear();
    cin >> s;
    dbg(s);
    int res = 0;
    int l = 0, r = (int)s.size() - 1;
    while (l <= r) {
      dbg("outer l " << l << " r " << r);
      int len = 1;
      while (l < r && !compare(l, r, len)) {
        r--;
        len++;
        dbg("inner l " << l << " r " << r);
      }
      dbg("len " << len);
      dbg(s.substr(l, len));
      dbg(s.substr(r, len));
      if (l >= r) {
        res++;
        break;
      } else {
        res += 2;
        l += len;
        r--;
      }
      dbg("l " << l << " r " << r);
    }
    cout << res << "\n";
  }
}

• Subtask 1: 15 / 15
• Subtask 2: 20 / 20
• Subtask 3: 25 / 25
• Subtask 4: 0 / 40