Submission #928654

#	Time	Username	Problem	Language	Result	Execution time	Memory
928654		Regulus	Palindromic Partitions (CEOI17_palindromic)	C++17	60 / 100	10028 ms	6896 KiB

palindromic

#include <bits/stdc++.h>
#define IO ios::sync_with_stdio(false);cin.tie(0);
#define debug(x) cerr << #x << " = " << (x) << ' '
#define bug(x) cerr << (x) << ' '
#define endl cerr << '\n'
#define all(v) (v).begin(), (v).end()
#define SZ(v) (ll)(v).size()
#define lowbit(x) (x)&-(x)
#define pb emplace_back
#define F first
#define S second
using namespace std;
using ll = long long;
using pll = pair<ll, ll>;

const int N = 1e6+5;
string s;
deque<int> dq, dq2;

int main(void)
{ IO
    int T, n, i;

    cin >> T;
    do {
        cin >> s, n = SZ(s);
        s = " " + s;

        int ans = 0, L=1, R=n;
        while (L <= R)
        {
            dq.clear(), dq2.clear();
            for (i=0; i < n; ++i)
            {
                dq.push_back(s[L+i]);
                dq2.push_front(s[R-i]);
                if (dq == dq2) break;
            }
            if (R-L == i) ++ans;
            else ans += 2;
            //debug(L), debug(R), debug(i);
            L += i + 1, R -= i + 1;
            //debug(L), debug(R), endl;
        }

        cout << ans << '\n';
    } while (--T);

    return 0;
}

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