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- // Hack it and have it ;) //
- /*author* Priyanshu Shrivastav (from IIT Palakkad) *
- * *_ __ ___ _ ______ ___ _ ____ ___ ___| |_ *
- * | '_ ` _ \| '__/ __/ _ \| '_ \ \ / / |/ __| __| *
- * | | | | | | | | (_| (_) | | | \ V /| | (__| |_ *
- * |_| |_| |_|_|(_)___\___/|_| |_|\_/ |_|\___|\__| *
- When I wrote this, only God and I understood what I was doing
- ** * * * * * * * Now, only God knows * * * * * * */
- #include <bits/stdc++.h>
- #include <ext/pb_ds/assoc_container.hpp>
- #include <ext/pb_ds/tree_policy.hpp>
- using namespace std;
- using namespace __gnu_pbds;
- #pragma GCC optimize ("Ofast")
- #pragma GCC optimize ("unroll-loops")
- #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
- #define IOS ios_base::sync_with_stdio(false); cin.tie (nullptr)
- #define PREC cout.precision (10); cout << fixed
- #define x first
- #define y second
- #define bg(x) " [ " << #x << " : " << (x) << " ] "
- #define un(x) sort(x.begin(), x.end()), \
- x.erase(unique(x.begin(), x.end()), x.end())
- using ll = long long;
- using ull = unsigned long long;
- using ff = long double;
- using pii = pair<int,int>;
- using pil = pair<int,ll>;
- typedef tree
- < int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update>
- ordered_set;
- struct chash {
- int operator()(pii x) const { return x.x*31 + x.y; }
- };
- gp_hash_table <pii, int, chash> mp;
- seed_seq seq{
- (uint64_t) chrono::duration_cast<chrono::nanoseconds>
- (chrono::high_resolution_clock::now().time_since_epoch()).count(),
- (uint64_t) __builtin_ia32_rdtsc(),
- (uint64_t) (uintptr_t) make_unique<char>().get()
- };
- mt19937 rng(seq); //uniform_int_distribution<int> (l, h)(rng); //[low, high]
- #define debug(args...) { \
- /* WARNING : do NOT compile this debug func calls with following flags: // \
- * // -D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC -D_FORTIFY_SOURCE=2*/ \
- string _s = #args; replace(_s.begin(), _s.end(), ',', ' ');\
- stringstream _ss(_s); \
- istream_iterator<string> _it(_ss); err(_it, args); \
- }
- void err(istream_iterator<string> it) {
- it->empty(); cerr << " (Line : " << __LINE__ << ")" << '\n';
- }
- template<typename T, typename... Args>
- void err(istream_iterator<string> it, T a, Args... args) {
- cerr << fixed << setprecision(15)
- << " [ " << *it << " : " << a << " ] "<< ' ';
- err(++it, args...);
- }
- /*****************************************************************************/
- struct polyhash {
- static const int Mod = (int)1e9 + 123;
- static vector <int> pow_int;
- static int p; // take p such that a[i] < p < Mod, gcd(p, Mod) = 1
- static int gen_base (const int l, const int r) {
- int base = uniform_int_distribution<int>(l + 1, r) (rng);
- return base % 2 == 0 ? base - 1 : base;
- }
- static void calc_pow(int mx_len) {
- while ((int)pow_int.size() <= mx_len + 1) { // calc powers
- pow_int.push_back(int(1ll * pow_int.back() * p % Mod));
- }
- }
- const int sz;
- vector <int> s;
- vector <int> pref_int;
- void encode(const string &st) {
- s.assign(sz, 0);
- for (int i = 0; i < sz; ++i) s[i] = st[i];
- }
- polyhash (const string &st) : sz((int)st.size())
- {
- encode(st);
- pref_int.assign(sz + 1u, 0);
- assert(p < Mod);
- calc_pow(sz + 1);
- for (int i = 0; i < sz; ++i) {
- assert(p > s[i]);
- pref_int[i] = int(1ll*s[i]*pow_int[i] % Mod);
- pref_int[i] = (pref_int[i] + (i > 0 ? pref_int[i - 1] : 0)) % Mod;
- }
- }
- inline int operator()
- (const int pos, const int len, const int mx_len = -1) const
- {
- assert(pos + len <= sz);
- int hash_int = pref_int[pos + len - 1];
- if (pos != 0) {
- hash_int = (hash_int - pref_int[pos - 1] + Mod) % Mod;
- }
- if (mx_len != -1) { // for direct comparison between prefixes
- //else multiply with opposite powers
- assert (mx_len < (int)pow_int.size());
- hash_int = int(1ll*hash_int*pow_int[mx_len - (pos+len-1)] % Mod);
- }
- return hash_int;
- }
- //indexing from 0, len >= 1
- };
- int polyhash::p = polyhash::gen_base((int)256, polyhash::Mod);
- vector <int> polyhash::pow_int{1};
- // int polyhash::p = 31; // 31 for [a ... z], 53 for [a..z, A..Z]
- vector <string> s;
- pair <string, string> get_best(string &big, string &small) {
- int n = (int)big.size(), m = (int)small.size();
- polyhash hash_big(big), hash_small(small);
- //smaller contained inside
- for (int i = 0; i + m - 1 <= n - 1; ++i) {
- if (hash_big(i, m, n) == hash_small(0, m, n)) {
- return make_pair(big, big);
- }
- }
- int mx_len1 = 0, mx_len2 = 0;
- for (int i = 0; i < m; ++i) {
- //smaller shares its suffix with biggers prefix
- int len1 = m - i;
- if (hash_big(0, len1, n) == hash_small(i, len1, n))
- mx_len1 = max(mx_len1, len1);
- //smaller shares its prefix with biggers suffix
- int len2 = i + 1;
- if (hash_big(n - len2, len2, n) == hash_small(0, len2, n))
- mx_len2 = max(mx_len2, len2);
- }
- if (mx_len1 == 0 && mx_len2 == 0) {
- return make_pair(big + small, small + big);
- }
- else {
- if (mx_len1 > mx_len2) {
- big = small.substr(0, m - mx_len1) + big;
- }
- else {
- big = big + small.substr(mx_len2, m - mx_len2);
- }
- return make_pair(big, big);
- }
- }
- void solve() {
- int ans = (int)(s[0].size() + s[1].size() + s[2].size());
- vector <int> idx = {0, 1, 2};
- do{
- pair <string, string> best, ans1, ans2;
- string big, small;
- if (s[idx[0]].size() > s[idx[1]].size()) big = s[idx[0]], small = s[idx[1]];
- else big = s[idx[1]], small = s[idx[0]];
- best = get_best(big, small);
- if (best.x.size() > s[idx[2]].size()) big = best.x, small = s[idx[2]];
- else big = s[idx[2]], small = best.x;
- ans1 = get_best(big, small);
- if (best.y.size() > s[idx[2]].size()) big = best.y, small = s[idx[2]];
- else big = s[idx[2]], small = best.y;
- ans2 = get_best(big, small);
- int local_ans = min({ans1.x.size(), ans1.y.size(), ans2.x.size(), ans2.y.size()});
- ans = min(ans, local_ans);
- } while (next_permutation(idx.begin(), idx.end()));
- cout << ans << '\n';
- }
- signed main() {
- IOS; PREC;
- s.resize(3);
- while (cin >> s[0] >> s[1] >> s[2]) {
- solve();
- }
- return EXIT_SUCCESS;
- }
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