Submission #946650

#TimeUsernameProblemLanguageResultExecution timeMemory
946650MilosMilutinovicAnts and Sugar (JOI22_sugar)C++14
0 / 100
4078 ms246096 KiB
#include<bits/stdc++.h> #define pb push_back #define fi first #define se second #define mp make_pair using namespace std; typedef long long ll; typedef unsigned long long ull; typedef pair<int,int> pii; typedef pair<ll,ll> pll; typedef long double ld; template <typename T> bool chkmin(T &x,T y){return x>y?x=y,1:0;} template <typename T> bool chkmax(T &x,T y){return x<y?x=y,1:0;} ll readint(){ ll x=0,f=1; char ch=getchar(); while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();} while(ch>='0'&&ch<='9'){x=x*10+ch-'0';ch=getchar();} return x*f; } int q,l,k; int t[500005],x[500005],a[500005]; ll b[1500005][2],sum,dp[6000005][2][2][3],lzy[6000005][2]; vector<int> xs; void pull(int id){ for(int x=0;x<2;x++) for(int y=0;y<2;y++) for(int c=0;c<3;c++) dp[id][x][y][c]=(ll)-1e18; for(int x1=0;x1<2;x1++){ for(int x2=0;x2<2;x2++){ for(int y1=0;y1<2;y1++){ for(int y2=0;y2<2;y2++){ for(int c1=0;c1<3;c1++){ for(int c2=0;c2<3;c2++){ if(x2!=y1) chkmax(dp[id][x1][y2][min(2,c1+c2)],dp[id<<1][x1][x2][c1]+dp[id<<1|1][y1][y2][c2]); chkmax(dp[id][x1][x2][c1],dp[id<<1][x1][x2][c1]); chkmax(dp[id][y1][y2][c2],dp[id<<1|1][y1][y2][c2]); } } } } } } } void upd1(int id,ll v){ for(int c=0;c<3;c++){ dp[id][0][0][c]-=v; dp[id][1][1][c]+=v; } } void push(int id){ if((id<<1|1)>6000000) return; upd1(id<<1,lzy[id][0]); upd1(id<<1|1,lzy[id][0]); lzy[id<<1][0]+=lzy[id][0]; lzy[id<<1|1][0]+=lzy[id][0]; lzy[id][0]=0; } void build(int id,int l,int r){ if(l==r){ for(int x=0;x<2;x++){ for(int y=0;y<2;y++){ for(int c=0;c<3;c++){ dp[id][x][y][c]=(ll)-1e18; } } } dp[id][0][0][0]=0; dp[id][1][1][1]=0; return; } int mid=(l+r)/2; build(id<<1,l,mid); build(id<<1|1,mid+1,r); pull(id); } void change(int id,int l,int r,int ql,int qr,int v){ if(ql<=l&&r<=qr){ upd1(id,v); lzy[id][0]+=v; push(id); return; } push(id); int mid=(l+r)/2; if(qr<=mid) change(id<<1,l,mid,ql,qr,v); else if(ql>mid) change(id<<1|1,mid+1,r,ql,qr,v); else change(id<<1,l,mid,ql,qr,v),change(id<<1|1,mid+1,r,ql,qr,v); pull(id); } void modify(int id,int l,int r,int p,int v){ if(l==r){ dp[id][1][1][1]-=v; return; } push(id); int mid=(l+r)/2; if(p<=mid) modify(id<<1,l,mid,p,v); else modify(id<<1|1,mid+1,r,p,v); pull(id); } int main(){ q=readint(); l=readint(); for(int i=1;i<=q;i++){ t[i]=readint(); x[i]=readint(); a[i]=readint(); } for(int i=1;i<=q;i++){ xs.pb(x[i]); xs.pb(x[i]-l); xs.pb(x[i]+l); } xs.pb((int)-1.00001e9); sort(xs.begin(),xs.end()); xs.erase(unique(xs.begin(),xs.end()),xs.end()); k=(int)xs.size(); build(1,0,k-1); for(int i=1;i<=q;i++){ if(t[i]==1){ int idx=(int)(lower_bound(xs.begin(),xs.end(),x[i])-xs.begin()); //for(int j=idx;j<k;j++) b[j][0]+=a[i]; //for(int j=idx;j<k;j++) b[j][1]+=a[i]; change(1,0,k-1,idx,k-1,a[i]); sum+=a[i]; }else{ int idx1=(int)(lower_bound(xs.begin(),xs.end(),x[i]+l)-xs.begin()); //for(int j=idx;j<k;j++) b[j][0]-=a[i]; change(1,0,k-1,idx1,k-1,-a[i]); int idx2=(int)(lower_bound(xs.begin(),xs.end(),x[i]-l)-xs.begin()); //for(int j=idx;j<k;j++) b[j][1]-=a[i]; for(int j=idx2;j<idx1;j++) modify(1,0,k-1,j,a[i]); } ll mx=0; for(int c=0;c<3;c++){ chkmax(mx,dp[1][0][1][c]); } printf("%lld\n",sum-mx); } return 0; }
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