제출 #232733

#제출 시각아이디문제언어결과실행 시간메모리
232733kymFoehn Phenomena (JOI17_foehn_phenomena)C++17
100 / 100
549 ms32248 KiB
#include <bits/stdc++.h> #pragma GCC optimize("Ofast") #pragma GCC target("avx,avx2,fma") using namespace std; #define int ll #define FOR(i,s,e) for(ll i = s; i <= (ll)e; ++i) #define DEC(i,s,e) for(ll i = s; i >= (ll)e; --i) #define IAMSPEED ios_base::sync_with_stdio(false); cin.tie(0); #define db(x) cerr << #x << "=" << x << "\n" #define db2(x, y) cerr << #x << "=" << x << " , " << #y << "=" << y << "\n" #define db3(a,b,c) cerr<<#a<<"="<<a<<","<<#b<<"="<<b<<","<<#c<<"="<<c<<"\n" #define dbv(v) cerr << #v << ":"; for (auto ite : v) cerr << ite << ' '; cerr <<"\n" #define dbvp(v) cerr << #v << ":"; for (auto ite : v) cerr << "{" << ite.f << ',' << ite.s << "} "; cerr << "\n" #define dba(a,ss,ee) cerr << #a << ":"; FOR(ite,ss,ee) cerr << a[ite] << ' '; cerr << "\n" mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); #define ll long long #define pb push_back #define all(x) (x).begin(), (x).end() #define f first #define s second #define reach cerr << "LINE: " << __LINE__ << "\n"; typedef pair <ll, ll> pi; typedef tuple<ll,ll,ll> ti3; string cts(char x) {string t(1,x); return t;} ll rand(ll a, ll b) { return a + rng() % (b-a+1); } const int MOD = 1e9 + 7; const int inf = (int)1e9 + 500; const long long oo = (ll)1e18 + 500; template <typename T> void chmax(T& a, T b) { a = max(a, b); } template <typename T> void chmin(T& a, T b) { a = min(a, b); } const int MAXN = 2e5+5; #ifndef LOCAL #define cerr if(0)cout #endif int A[MAXN]; struct node { int s,e,m,val,lazy; node *l, *r; node(int _s, int _e) { s = _s, e = _e; m = (s+e)/2; lazy = 0; if(s!=e){ l=new node(s,m); r=new node(m+1,e); } else { val=A[s]; } } int value(){ if(lazy==0)return val; val+=lazy; if(s!=e){ l->lazy+=lazy; r->lazy+=lazy; } lazy=0; return val; } void update(int x, int y, int nval) { value(); if(s==x&&e==y){ lazy+=nval; return; } if(x>m)r->update(x,y,nval); else if(y<=m)l->update(x,y,nval); else l->update(x,m,nval),r->update(m+1,y,nval); } int get(int x) { value(); if(s==e)return val; if(x>m)return r->get(x); else return l->get(x); } } *seg; ll n,Q,s,t; ll calc(ll now, ll last) { ll res = 0; if(last<now){ res-=s*(now-last); } else { res+=t*(last-now); } return res; } int32_t main() { IAMSPEED cin>>n>>Q>>s>>t; FOR(i,0,n)cin>>A[i]; seg=new node(0,n); ll ans = 0; FOR(i,1,n){ ll now = A[i], last = A[i-1]; ans+=calc(now,last); } //db(ans); while(Q--){ int l,r,nval; cin >> l >> r >> nval; ans-=calc(seg->get(l),seg->get(l-1)); if(r!=n){ ans-=calc(seg->get(r+1),seg->get(r)); } ans+=calc(nval+seg->get(l),seg->get(l-1)); if(r!=n){ ans+=calc(seg->get(r+1),seg->get(r)+nval); } seg->update(l,r,nval); cout << ans << '\n'; } } /* DEBUG ** Array bounds ** Overflow ** Edge cases ** do something ** write stuff down */
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...