이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
using namespace std;
// macros
typedef long long ll;
typedef long double ld;
typedef pair<int, int> ii;
typedef pair<ll, ll> lll;
typedef tuple<int, int, int> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<iii> viii;
typedef vector<ll> vll;
typedef vector<lll> vlll;
#define REP(a,b,c) for(int a=int(b); a<int(c); a++)
#define RE(a,c) REP(a,0,c)
#define RE1(a,c) REP(a,1,c+1)
#define REI(a,b,c) REP(a,b,c+1)
#define REV(a,b,c) for(int a=int(c-1); a>=int(b); a--)
#define FOR(a,b) for(auto& a : b)
#define all(a) a.begin(), a.end()
#define INF 1e18
#define EPS 1e-9
#define pb push_back
#define popb pop_back
#define fi first
#define se second
#define sz size()
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
// input
template<class T> void IN(T& x) {cin >> x;}
template<class H, class... T> void IN(H& h, T&... t) {IN(h); IN(t...); }
// output
template<class T1, class T2> void OUT(const pair<T1,T2>& x);
template<class T> void OUT(const vector<T>& x);
template<class T> void OUT(const T& x) {cout << x;}
template<class H, class... T> void OUT(const H& h, const T&... t) {OUT(h); OUT(t...); }
template<class T1, class T2> void OUT(const pair<T1,T2>& x) {OUT(x.fi,' ',x.se);}
template<class T> void OUT(const vector<T>& x) {RE(i,x.size()) OUT(i==0?"":" ",x[i]);}
template<class... T> void OUTL(const T&... t) {OUT(t..., "\n"); }
template<class H> void OUTLS(const H& h) {OUTL(h); }
template<class H, class... T> void OUTLS(const H& h, const T&... t) {OUT(h,' '); OUTLS(t...); }
//===================//
// Added libraries //
//===================//
//===================//
//end added libraries//
//===================//
void program();
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
program();
}
//===================//
// begin program //
//===================//
const int N = (1<<20);
ll n, q, s, t;
ll a[N];
struct T {
ll la, ra, temp;
};
T seg[N*2];
ll laz[N*2];
T comb(T l, T r) {
T res;
res.la = l.la;
res.ra = r.ra;
res.temp = l.temp + r.temp;
if(l.ra < r.la) {
res.temp -= (r.la-l.ra)*s;
} else {
res.temp += (l.ra-r.la)*t;
}
return res;
}
void buildSeg(int p=1, int l=0, int r=n-1) {
laz[p] = 0;
if(l == r) {
seg[p] = {a[l], a[l], 0};
return;
}
int m=(l+r)/2;
buildSeg(p*2,l,m);
buildSeg(p*2+1,m+1,r);
seg[p] = comb(seg[p*2], seg[p*2+1]);
}
void addSeg(int i, int j, ll v, ll lazy=0, int p=1, int l=0, int r=n-1) {
seg[p].la += lazy;
seg[p].ra += lazy;
laz[p] += lazy;
if(j < l || i > r) return;
if(i <= l && j >= r) {
seg[p].la += v;
seg[p].ra += v;
laz[p] += v;
return;
}
int m=(l+r)/2;
addSeg(i,j,v,laz[p],p*2,l,m);
addSeg(i,j,v,laz[p],p*2+1,m+1,r);
seg[p] = comb(seg[p*2], seg[p*2+1]);
laz[p] = 0;
}
void program() {
IN(n,q,s,t); n++;
RE(i,n) IN(a[i]);
buildSeg();
RE(i,q) {
int l, r, x; IN(l,r,x);
addSeg(l,r,x);
OUTLS(seg[1].temp);
}
}
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