제출 #237673

#제출 시각아이디문제언어결과실행 시간메모리
237673zaneyuFoehn Phenomena (JOI17_foehn_phenomena)C++14
100 / 100
721 ms24312 KiB
/*input 7 8 8 13 0 4 -9 4 -2 3 10 -9 1 4 8 3 5 -2 3 3 9 1 7 4 3 5 -1 5 6 3 4 4 9 6 7 -10 */ #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; #pragma GCC optimize("unroll-loops,no-stack-protector") //order_of_key #of elements less than x // find_by_order kth element #define ll long long #define ld long double #define pii pair<double,double> typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> indexed_set; #define f first #define s second #define pb push_back #define REP(i,n) for(int i=0;i<n;i++) #define REP1(i,n) for(int i=1;i<=n;i++) #define FILL(n,x) memset(n,x,sizeof(n)) #define ALL(_a) _a.begin(),_a.end() #define sz(x) (int)x.size() #define SORT_UNIQUE(c) (sort(c.begin(),c.end()), c.resize(distance(c.begin(),unique(c.begin(),c.end())))) #define MP make_pair const ll INF64=4e12; const int INF=0x3f3f3f3f; const ll MOD=1e9+7; const ld PI=acos(-1); const ld eps=1e-9; #define lowb(x) x&(-x) #define MNTO(x,y) x=min(x,(__typeof__(x))y) #define MXTO(x,y) x=max(x,(__typeof__(x))y) ll mult(ll a,ll b){ return ((a%MOD)*(b%MOD))%MOD; } ll mypow(ll a,ll b){ if(b<=0) return 1; ll res=1LL; while(b){ if(b&1){ res=(res*a)%MOD; } a=(a*a)%MOD; b>>=1; } return res; } const ll maxn=2e5+5; const ll maxlg=__lg(maxn)+2; #define int ll int arr[maxn]; struct node{ ll mx,lazy=0; }seg[4*maxn]; node pull(node a,node b){ node x; x.mx=max(a.mx,b.mx); return x; } void pushdown(int idx,int l,int r){ if(!seg[idx].lazy) return; seg[idx].mx+=seg[idx].lazy; if(l==r){ seg[idx].lazy=0; return; } seg[idx*2].lazy+=seg[idx].lazy; seg[idx*2+1].lazy+=seg[idx].lazy; seg[idx].lazy=0; } void build(int idx,int l,int r){ if(l==r){ seg[idx].mx=arr[l]; return; } int mid=(l+r)/2; build(idx*2,l,mid); build(idx*2+1,mid+1,r); seg[idx]=pull(seg[idx*2],seg[idx*2+1]); } void upd(int idx,int l,int r,int ql,int qr,int x){ pushdown(idx,l,r); if(r<ql or l>qr) return; if(ql<=l and r<=qr){ seg[idx].lazy+=x; pushdown(idx,l,r); return; } int mid=(l+r)/2; upd(idx*2,l,mid,ql,qr,x); upd(idx*2+1,mid+1,r,ql,qr,x); seg[idx]=pull(seg[idx*2],seg[idx*2+1]); } ll query(int idx,int l,int r,int ql,int qr){ if(r<ql or l>qr) return -INF64; pushdown(idx,l,r); if(ql<=l and r<=qr){ return seg[idx].mx; } int mid=(l+r)/2; return max(query(idx*2,l,mid,ql,qr),query(idx*2+1,mid+1,r,ql,qr)); } int n; ll get(int i){ return query(1,0,n-1,i,i); } ll ssum=0,tsum=0; int32_t main(){ ios::sync_with_stdio(false),cin.tie(0); int q,s,t; cin>>n>>q>>s>>t; ++n; REP(i,n){ cin>>arr[i]; if(i){ if(arr[i]>arr[i-1]) ssum+=(arr[i]-arr[i-1]); else tsum+=(arr[i-1]-arr[i]); } } build(1,0,n-1); REP(i,q){ int l,r,x; cin>>l>>r>>x; int tl=get(l),tl1=get(l-1); if(tl>tl1) ssum-=(tl-tl1); else tsum-=(tl1-tl); if(r!=(n-1)){ tl1=get(r),tl=get(r+1); if(tl>tl1) ssum-=(tl-tl1); else tsum-=(tl1-tl); } upd(1,0,n-1,l,r,x); tl=get(l),tl1=get(l-1); if(tl>tl1) ssum+=(tl-tl1); else tsum+=(tl1-tl); if(r!=(n-1)){ tl1=get(r),tl=get(r+1); if(tl>tl1) ssum+=(tl-tl1); else tsum+=(tl1-tl); } //cout<<tsum<<' '<<ssum<<' '; cout<<tsum*t-ssum*s<<'\n'; } }
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...