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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#850077#8701. BorderWindy_Hill0 2ms7720kbC++142.0kb2025-01-09 20:10:492025-01-09 20:10:52

Judging History

你现在查看的是最新测评结果

  • [2025-01-09 20:10:52]
  • 评测
  • 测评结果:0
  • 用时:2ms
  • 内存:7720kb
  • [2025-01-09 20:10:49]
  • 提交

answer

#include <bits/stdc++.h>

#define int long long

using namespace std;

const int N = 2000010;
const int mod = 1e9 + 7;
const int base = 131;

string s1, s2;
int top, st[N];
int n, pw[N], res[N];
int has1[N], has2[N];

signed main()
{
    ios::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    cin >> s1 >> s2; n = s1.size();
    s1 = " " + s1; s2 = " " + s2; pw[0] = 1;
    for (int i = 1; i <= n; i ++ ) pw[i] = pw[i - 1] * base % mod;
    for (int i = 1; i <= n; i ++ ) has1[i] = (has1[i - 1] * base + s1[i]) % mod;
    for (int i = n; i >= 1; i -- ) has2[i] = (has2[i + 1] + s1[i] * pw[n - i]) % mod;
    for (int i = 1; i <= n; i ++ )
        if (has1[i] == has2[n - i + 1])
            st[ ++ top] = i;
    for (int i = 1; i <= n; i ++ )
    {
        int l = 1, r = i;
        while (l < r)
        {
            int mid = (l + r) / 2;
            int t1 = has1[mid] * pw[i - mid];
            int t2 = has2[n - i + 1] - has2[n - i + mid + 1];
            if (t1 == t2) l = mid + 1;
            else r = mid;
        }
        int k1 = l, k2 = n - i + l;
        if (s2[k1] == s1[k2])
        {
            int p1 = ((has1[i] - (s1[k1] - s2[k1]) * pw[i - k1]) % mod + mod) % mod;
            int p2 = has2[n - i + 1];
            if (n - i + 1 <= k1) p2 = ((p2 - (s1[k1] - s2[k1]) * pw[n - k1]) % mod + mod) % mod;
            if (p1 == p2) res[k1] = max(res[k1], i);
        }
        if (s1[k2] == s2[k1])
        {
            int p1 = ((has2[n - i + 1] - (s1[k2] - s2[k2]) * pw[n - k2]) % mod + mod) % mod;
            int p2 = has1[i];
            if (k2 <= i) p2 = ((p2 - (s1[k2] - s2[k2]) * pw[i - k2]) % mod + mod) % mod;
            if (p1 == p2) res[k2] = max(res[k2], i);
        }
    }
    int p = 0;
    for (int i = 1; i <= n; i ++ )
    {
        int k = min(i, n - i + 1);
        while (st[p + 1] < k && p < top) p ++ ;
        while (st[p] >= k && p > 0) p -- ;
        res[i] = max(res[i], st[p]);
        cout << res[i] << "\n";
    }
    return 0;
}

Details

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Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 0
Wrong Answer
time: 2ms
memory: 7720kb

input:

cbaababaabacbaababaabacbaabacbaababaabacbaaba
dabbababbabaabbafabbgbaabfebaabzababbayaabcac

output:

0
0
0
0
0
0
6
6
6
6
6
6
6
6
6
6
6
17
17
17
17
17
17
17
17
17
17
17
6
6
6
6
6
6
6
6
6
6
6
0
0
0
0
0
0

result:

wrong answer 43rd numbers differ - expected: '3', found: '0'

Subtask #2:

score: 0
Skipped

Dependency #1:

0%

Subtask #3:

score: 0
Skipped

Dependency #1:

0%

Subtask #4:

score: 0
Skipped

Dependency #1:

0%