194 lines
3.6 KiB
C++
194 lines
3.6 KiB
C++
/* Problem URL: https://codeforces.com/contest/2154/problem/C2 */
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#include <bits/stdc++.h>
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#include <ext/pb_ds/assoc_container.hpp>
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#include <ext/pb_ds/tree_policy.hpp>
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using namespace std;
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using namespace __gnu_pbds;
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template <class T, class comp = less<>>
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using ordered_set = tree<T, null_type , comp , rb_tree_tag , tree_order_statistics_node_update>;
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#define V vector
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#define rmin(a, b) a = min(a, b)
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#define rmax(a, b) a = max(a, b)
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#define rep(i, lim) for (int i = 0; i < (lim); i++)
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#define nrep(i, s, lim) for (int i = s; i < (lim); i++)
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#define repv(i, v) for (auto &i : (v))
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#define fillv(v) for (auto &itr_ : (v)) { cin >> itr_; }
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#define sortv(v) sort(v.begin(), v.end())
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#define all(v) (v).begin(), (v).end()
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using vi = vector<int>;
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using vvi = vector<vi>;
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using vvvi = vector<vvi>;
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using vvvvi = vector<vvvi>;
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using ll = long long;
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using vl = vector<ll>;
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using vvl = vector<vl>;
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using vvvl = vector<vvl>;
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using vvvvl = vector<vvvl>;
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template<class v>
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auto operator<<(ostream &os, const vector<v> &vec)->ostream& {
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os << vec[0];
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for (size_t i = 1; i < vec.size(); i++) {
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os << ' ' << vec[i];
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}
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os << '\n';
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return os;
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}
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template<class v>
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auto operator>>(istream &is, vector<v> &vec)->istream& {
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for (auto &i : vec) {
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is >> i;
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}
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return is;
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}
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template<class v>
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auto operator<<(ostream &os, const vector<vector<v>> &vec)->ostream& {
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for (auto &i : vec) {
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os << i[0];
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for (size_t j = 1; j < i.size(); j++) {
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os << ' ' << i[j];
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}
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os << '\n';
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}
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return os;
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}
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template<class v>
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auto operator>>(istream &is, vector<vector<v>> &vec)->istream& {
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for (auto &i : vec) {
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for (auto &j : i) {
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is >> j;
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}
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}
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return is;
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}
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const int oo = INT32_MAX >> 1;
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const ll OO = INT64_MAX >> 1;
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const int maxn = 2e5 + 2;
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int divs[maxn];
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void pre()
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{
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fill(divs, divs + maxn, 1);
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nrep(i, 2, maxn) {
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if (divs[i] != 1) {
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continue;
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}
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for (int j = i; j < maxn; j += i) {
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divs[j] = i;
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}
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}
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}
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#define TEST 1
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void solve()
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{
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int n;
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cin >> n;
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V<pair<ll, int>> a(n);
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repv(i, a) {
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cin >> i.second;
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}
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repv(i, a) {
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cin >> i.first;
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}
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set<int> primes;
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auto getprimes = [&](int now) {
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while (divs[now] != 1) {
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if (primes.count(divs[now])) {
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return true;
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}
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primes.insert(divs[now]);
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int prev = divs[now];
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while (divs[now] == prev) {
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now /= divs[now];
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}
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}
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return false;
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};
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auto findprimes = [&](int now) {
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while (divs[now] != 1) {
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if (primes.count(divs[now])) {
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return true;
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}
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int prev = divs[now];
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while (divs[now] == prev) {
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now /= divs[now];
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}
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}
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return false;
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};
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rep(i, n) {
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if (getprimes(a[i].second)) {
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cout << "0\n";
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return;
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}
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}
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sortv(a);
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ll ans = a[0].first + a[1].first;
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rep(i, n) {
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if (findprimes(a[i].second + 1)) {
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rmin(ans, a[i].first);
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}
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}
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if (primes.empty()) {
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cout << ans << '\n';
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return;
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}
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repv(i, primes) {
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if (a[0].second % i == 0) {
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continue;
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}
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rmin(ans, (i - a[0].second % i) * a[0].first);
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}
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cout << ans << '\n';
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}
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int main()
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{
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ios::sync_with_stdio(false);
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cin.tie(nullptr);
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pre();
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int t;
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(TEST && cin >> t) || (t = 1);
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while (t--) {
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solve();
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}
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}
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