제출 #362012

#제출 시각아이디문제언어결과실행 시간메모리
362012HoneyBadgerFoehn Phenomena (JOI17_foehn_phenomena)C++17
100 / 100
184 ms7532 KiB
#include <iostream> #include <iomanip> #include <cstdio> #include <vector> #include <bitset> #include <string> #include <cstring> #include <map> #include <set> #include <stack> #include <queue> #include <deque> #include <utility> #include <algorithm> #include <random> #include <cmath> #include <cassert> #include <climits> #include <ctime> #include <chrono> /* #pragma GCC optimize("Ofast") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #pragma GCC target("sse,sse2,sse3,ssse3,sse4,sse4.1,sse4.2,popcnt,abm,mmx,avx,avx2,tune=native") */ #ifdef LOCAL #define dbg(x) cout << #x << " : " << x << endl; #else #define dbg(x) #endif #define int long long #define pb push_back #define ppb pop_back() #define mp make_pair #define fi(a, b) for (int i = a; i < b; i++) #define fj(a, b) for (int j = a; j < b; j++) #define fk(a, b) for (int k = a; k < b; k++) #define fi1(a, b) for (int i = a - 1; i >= b; i--) #define fj1(a, b) for (int j = a - 1; j >= b; j--) #define fk1(a, b) for (int k = a - 1; k >= b; k--) #define fx(x, a) for (auto& x : a) #define rep(i, a, b) for (int i = a; i < b; ++i) #define rep1(i, a, b) for (int i = a - 1; i >= b; --i) #define siz(x) (int)x.size() #define lb lower_bound #define ub upper_bound #define all(x) x.begin(), x.end() using namespace std; template<typename T1, typename T2>inline void mine(T1 &x, const T2 &y) { if (y < x) x = y; } template<typename T1, typename T2>inline void maxe(T1 &x, const T2 &y) { if (x < y) x = y; } ostream& operator << (ostream &out, const vector<int> &b) { for (auto k : b) out << k << ' '; return out; } typedef long long ll; typedef unsigned long long ull; typedef long double ld; typedef char ch; typedef string str; typedef pair<int, int> pii; typedef vector<int> vi; typedef vector<vi> vvi; typedef vector<pii> vpii; typedef vector<vpii> vvpii; typedef vector<ch> vch; typedef vector<vch> vvch; typedef vector<str> vs; const int MOD = 1000000007; const int INF = 1000000050; const long long BIG = (long long)2e18 + 50; const int MX = 200010; const double EPS = 1e-9; mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); int a[MX]; int f[MX]; void upd(int i, int x) { for (++i; i < MX; i += i & -i) f[i] += x; } int get(int i) { int ans = 0; for (++i; i > 0; i -= i & -i) ans += f[i]; return ans; } void updlr(int l, int r, int x) { upd(l, x); upd(r + 1, -x); } int32_t main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int n, q, s, t; cin >> n >> q >> s >> t; for (int i = 0; i <= n; ++i) { cin >> a[i]; updlr(i, i, a[i]); } auto calc = [&](int i) { if (i < 0 || i == n) return 0ll; int x = get(i); int y = get(i + 1); if (x < y) return (x - y) * s; return (x - y) * t; }; int ans = 0; for (int i = 0; i < n; ++i) { ans += calc(i); } while (q--) { int l, r, x; cin >> l >> r >> x; int delta = 0; delta -= calc(l - 1); delta -= calc(r); updlr(l, r, x); delta += calc(l - 1); delta += calc(r); ans += delta; cout << ans << '\n'; /*cout << "a: "; for (int i = 0; i <= n; ++i) cout << get(i) << ' '; cout << '\n';*/ } }
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