結果
問題 | No.1036 Make One With GCD 2 |
ユーザー |
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提出日時 | 2020-05-01 21:28:49 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 472 ms / 2,000 ms |
コード長 | 2,431 bytes |
コンパイル時間 | 3,738 ms |
コンパイル使用メモリ | 207,376 KB |
実行使用メモリ | 15,636 KB |
最終ジャッジ日時 | 2024-09-16 14:18:33 |
合計ジャッジ時間 | 14,716 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge6 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 41 |
ソースコード
#pragma GCC optimize("Ofast")#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;using ll = long long;using ull = unsigned long long;using pii = pair<int, int>;using pll = pair<long long, long long>;#define rep(i, n) for(int i = 0; i < (n); ++i)#define all(x) (x).begin(),(x).end()constexpr char ln = '\n';constexpr long long MOD = 1000000007LL;//constexpr long long MOD = 998244353LL;template<class T, class U> inline bool chmax(T &a, U b) { if (a < b) { a = b; return true;} return false; }template<class T, class U> inline bool chmin(T &a, U b) { if (a > b) { a = b; return true;} return false; }/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////template<typename T, typename Monoid>struct SlidingWindowAggregation {T unity;Monoid merge;stack<pair<T, T>> front, back;SlidingWindowAggregation(Monoid f, T id) : merge(f), unity(id) {}bool empty() const {return front.empty() and back.empty();}int size() const {return front.size() + back.size();}T fold_all() const {T vf = front.empty() ? unity : front.top().second;T vb = back.empty() ? unity : back.top().second;return merge(vf,vb);}void emplace(const T &val) {if (back.empty()) {back.emplace(val,val);} else {back.emplace(val,merge(back.top().second,val));}}void pop() {assert(!empty());if (front.empty()) {front.emplace(back.top().first,back.top().first);back.pop();while (!back.empty()) {front.emplace(back.top().first,merge(front.top().second,back.top().first));back.pop();}}front.pop();}};int main() {ios::sync_with_stdio(false); cin.tie(nullptr);ll N; cin >> N;vector<ll> A(N);rep(i,N) cin >> A[i];auto f=[](ll a, ll b) {return __gcd(a,b);};const ll id = 0;SlidingWindowAggregation<ll, decltype(f)> SWAG(f,id);int r = 0;ll ans = N*(N+1)/2;rep(l,N) {while (r < N and SWAG.fold_all() != 1) {SWAG.emplace(A[r]);r++;}ans -= SWAG.fold_all() == 1 ? r-l-1 : r-l;SWAG.pop();}cout << ans << ln;}