#include<bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define endl '\n'
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int N = 1e6 + 50;
const int mod = 1e9 + 7;
const int B = 1742;
int n, h[N];
string s;
int add(int a, int b) {
a += b;
if (a >= mod) a -= mod;
if (a < 0) a += mod;
return a;
}
int mul(int a, int b) {
return 1ll*a*b%mod;
}
int pw(int a, int b) {
int out = 1;
while (b) {
if(b&1) out = mul(out, a);
a = mul(a,a);
b>>=1;
}
return out;
}
int H(int l, int r) {
return add(h[r], -mul(h[l], pw(B, r-l)));
}
void solve() {
cin >> s;
n = s.size();
for (int i = 1; i <= n; i++) {
h[i] = add(mul(h[i-1], B), s[i-1]);
}
int l = 0;
int ans = 0;
for (int r = 1; r <= n-l; r++) {
if (H(l, r) == H(n-r, n-l)) {
ans += 2-(r == n-l);
l = r;
}
}
cout << ans << endl;
}
int main() {
ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
int tc;
cin >> tc;
while(tc--)
solve();
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
4 ms |
468 KB |
Output is correct |
11 |
Correct |
4 ms |
344 KB |
Output is correct |
12 |
Correct |
4 ms |
468 KB |
Output is correct |
13 |
Correct |
2 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
4 ms |
468 KB |
Output is correct |
11 |
Correct |
4 ms |
344 KB |
Output is correct |
12 |
Correct |
4 ms |
468 KB |
Output is correct |
13 |
Correct |
2 ms |
340 KB |
Output is correct |
14 |
Correct |
496 ms |
15052 KB |
Output is correct |
15 |
Correct |
503 ms |
10440 KB |
Output is correct |
16 |
Correct |
553 ms |
14548 KB |
Output is correct |
17 |
Correct |
95 ms |
8128 KB |
Output is correct |