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Submission #113897

# Submission time Handle Problem Language Result Execution time Memory
113897 2019-05-29T06:25:32 Z MAMBA Palindromic Partitions (CEOI17_palindromic) C++17
100 / 100
 95 ms 1812 KB 
#include <bits/stdc++.h> 

using namespace std;

#define rep(i , j , k) for (int i = j; i < (int)k; i++)
#define pb push_back
#define mt make_tuple
#define all(x) x.begin(),x.end()

typedef long long ll;
typedef pair<int , int> pii;
typedef pair<ll, ll> pll;
typedef long double ld;
typedef complex<ld> point;
typedef pair<ld , ld> pld;
typedef vector<ll> vi;

inline void fileIO(string s) {
	//	freopen((s + ".in").c_str(), "r", stdin);
	freopen((s + ".out").c_str(), "w", stdout);
}

template<class T , class S>
inline bool smin(T &a, S b) { return (T)b < a ? a = b , 1 : 0; }
template<class T , class S>
inline bool smax(T &a, S b) { return a < (T)b ? a = b , 1 : 0; }

constexpr int N = 1e5 + 10;
constexpr int MOD = 1e9 + 7;

template<typename T>
inline T mod(T &v) { return v = (v % MOD + MOD) % MOD; }
template<typename S, typename T>
inline S add(S &l, T r) { return mod(l += r); }

string s;
int t;

int solve(int l, int r) {
	if (l == r) return 1;
	if (l > r) return 0;

	ll H1 = s[l], H2 = s[r], shit = 1;
	while (true) {
		if (l > r) return 1;
		if (H1 == H2) 
			return 2 + solve(l + 1, r - 1);
		l++, r--; shit = (shit * 727) % MOD;
		H1 = (727 * H1 + s[l]) % MOD;
		H2 = (H2 + shit * s[r]) % MOD;
	}
}

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);

	cin >> t;
	while (t--) {
		cin >> s;
		cout << solve(0 , s.size() - 1) << '\n';
	}

	return 0;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 284 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 284 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 2 ms 512 KB Output is correct
11 Correct 3 ms 384 KB Output is correct
12 Correct 3 ms 512 KB Output is correct
13 Correct 2 ms 384 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 284 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 2 ms 512 KB Output is correct
11 Correct 3 ms 384 KB Output is correct
12 Correct 3 ms 512 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 36 ms 1812 KB Output is correct
15 Correct 95 ms 1812 KB Output is correct
16 Correct 45 ms 1812 KB Output is correct
17 Correct 15 ms 1812 KB Output is correct