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| #include <cstdio> #include <vector> #include <cstring> using namespace std; template <class Type> void read(Type &x) { char c; bool flag = false; while ((c = getchar()) < '0' || c > '9') c == '-' && (flag = true); x = c - '0'; while ((c = getchar()) >= '0' && c <= '9') x = (x << 3) + (x << 1) + c - '0'; if (flag) x = ~x + 1; } template <class Type, class ...rest> void read(Type &x, rest &...y) { read(x), read(y...); } template <class Type> void write(Type x) { if (x < 0) putchar('-'), x = ~x + 1; if (x > 9) write(x / 10); putchar(x % 10 + '0'); } typedef long long LL; const int N = 2e5 + 10; char str[N]; vector <int> g[N]; int hd, tl, q[N]; int cnt = 1, last = cnt, f[N]; struct Node { int p, len, nxt[26]; } tr[N]; void insert (int c) { int p = last, np = ++cnt; tr[np].len = tr[p].len + 1; f[np] = 1; for (; p && !tr[p].nxt[c]; p = tr[p].p) tr[p].nxt[c] = np; last = np; if (!p) return void(tr[np].p = 1); int q = tr[p].nxt[c]; if (tr[q].len == tr[p].len + 1) return void(tr[np].p = q); int nq = ++cnt; tr[nq] = tr[q], tr[nq].len = tr[p].len + 1; tr[q].p = tr[np].p = nq; for (; p && tr[p].nxt[c] == q; p = tr[p].p) tr[p].nxt[c] = nq; } int main () { int T; read(T); while (T--) { scanf("%s", str + 1); int n = strlen(str + 1); for (int i = 1; i <= n; ++i) insert(str[i] - 'a'); for (int i = 1; i <= cnt; ++i) g[tr[i].p].push_back(i); hd = 1, tl = 0; q[++tl] = 1; while (hd <= tl) { int t = q[hd++]; for (int i : g[t]) q[++tl] = i; } LL res = 0; for (int i = hd - 1; i > 1; --i) { int &t = f[q[i]]; res += (LL)t * t * (tr[q[i]].len - tr[tr[q[i]].p].len); f[tr[q[i]].p] += t; } write(res), puts(""); for (int i = 1; i <= cnt; ++i) { g[i].clear(); f[i] = tr[i].p = tr[i].len = 0; for (int j = 0; j < 26; ++j) tr[i].nxt[j] = 0; } cnt = 1, last = cnt; } return 0; }
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