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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#390770#5312. Levenshtein DistancejiajiaWA 8ms6260kbC++202.7kb2024-04-15 21:27:482024-04-15 21:27:48

Judging History

你现在查看的是最新测评结果

  • [2024-04-15 21:27:48]
  • 评测
  • 测评结果:WA
  • 用时:8ms
  • 内存:6260kb
  • [2024-04-15 21:27:48]
  • 提交

answer

#include <bits/stdc++.h>
#define LL long long
using namespace std;
const int MAXN = 4e5 + 5;

int n, m, K;
struct SA {
	string s;
	int n, m, sa[MAXN], tmp[MAXN << 1], rk[MAXN], cnt[MAXN];
	void tsort() {
		for (int i = 0; i <= m; i++) cnt[i] = 0;
		for (int i = 1; i <= n; i++) cnt[rk[i]]++;
		for (int i = 1; i <= m; i++) cnt[i] += cnt[i - 1];
		for (int i = n; i >= 1; i--) sa[cnt[rk[tmp[i]]]--] = tmp[i];
	}
	bool cmp(int x, int y, int w) {return tmp[x] == tmp[y] && tmp[x + w] == tmp[y + w];}
	int h[18][MAXN];
	void build() {
		for (int i = 1; i <= n; i++) rk[i] = s[i], tmp[i] = i;
		m = 200, tsort();
		for (int w = 1, p = 0; p < n; w <<= 1, m = p) {
			p = 0;
			for (int i = 1; i <= w; i++) tmp[++p] = n - w + i;
			for (int i = 1; i <= n; i++) if (sa[i] > w) tmp[++p] = sa[i] - w;
			tsort();
			memcpy(tmp, rk, sizeof(rk));
			rk[sa[1]] = p = 1;
			for (int i = 2; i <= n; i++) {
				if (cmp(sa[i], sa[i - 1], w)) rk[sa[i]] = p;
				else rk[sa[i]] = ++p;
			}
		}
		if (K == 30) return;
		for (int i = 1, p = 0; i <= n; i++) {
			if (rk[i] == 1) continue;
			if (p) --p;
			while (s[i + p] == s[sa[rk[i] - 1] + p]) ++p;
			h[0][rk[i]] = p;
		}
		for (int i = 1; i <= 17; i++)
			for (int j = 1; j + (1 << i) - 1 <= n; j++)
				h[i][j] = min(h[i - 1][j], h[i - 1][j + (1 << i - 1)]);
	}
}sa;
string s, t;
int lcp(int i, int j) {
	if (i > n || j > m) return 0;
	i = sa.rk[i], j = sa.rk[n + 1 + j];
	if (i > j) swap(i, j);
	++i;
	int k = __builtin_clz(j - i + 1) ^ 31;
	return min(sa.h[k][i], sa.h[k][j - (1 << k) + 1]);
}
int f[65][35], ans[MAXN];

int main() {
	// freopen("in.txt", "r", stdin);
	ios::sync_with_stdio(0), cin.tie(0);
	cin >> K >> s >> t, n = s.size(), m = t.size(), s = ' ' + s, t = ' ' + t;
	sa.s.resize(n + m + 2);
	for (int i = 1; i <= n; i++) sa.s[i] = s[i];
	sa.s[n + 1] = '$';
	for (int i = 1; i <= m; i++) sa.s[n + 1 + i] = t[i];
	sa.n = n + m + 1, sa.build();
	if (K == 30) return 0;
	for (int p = 0; p < m; p++) {
		memset(f, 0xc0, sizeof(f));
		f[0][K] = 0;
		for (int i = 0; i <= K; i++)
			for (int j = max(-K, 1 - n); j <= min(K, m - p - 1); j++) {
				if (f[i][j + K] < 0) continue;
				f[i][j + K] += lcp(f[i][j + K] + 1, f[i][j + K] + 1 + j + p);
				if (i == K) continue;
				f[i + 1][j + K] = max(f[i + 1][j + K], f[i][j + K] + 1);
				f[i + 1][j + K + 1] = max(f[i + 1][j + K + 1], f[i][j + K]);
				f[i + 1][j + K - 1] = max(f[i + 1][j + K - 1], f[i][j + K] + 1);
			}
		for (int j = max(-K, 1 - n); j <= min(K, m - p - n); j++)
			for (int i = 0; i <= K; i++) 
				if (f[i][j + K] >= n) {ans[i]++; break;}
	}
	for (int i = 0; i <= K; i++) cout << ans[i] << '\n';
	cerr << (double)clock() / CLOCKS_PER_SEC << endl;
	return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 2ms
memory: 5664kb

input:

4
aaa
aabbaab

output:

0
5
15
7
1

result:

ok 5 number(s): "0 5 15 7 1"

Test #2:

score: -100
Wrong Answer
time: 8ms
memory: 6260kb

input:

30
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

output:


result:

wrong answer Answer contains longer sequence [length = 31], but output contains 0 elements