| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 480638 | Haidara | Wall (IOI14_wall) | C++17 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
#include<wall.h>
#define int long long
#define v(i) vector< i >
using namespace std;
const int maxn=200200;
int n;
struct node
{
int mx,mn,lazy;
node():mx(0),mn(0){}
}st[maxn*4];
void pull(int inx,int l,int r,int val=0)
{
if(val>0)
{
st[inx].mn=val;
st[inx].mx=max(st[inx].mx,val);
}
else if(val<0)
{
st[inx].mx=val;
st[inx].mn=min(val,st[inx].mn);
}
if(l!=r)
{
st[inx*2].mn=max(st[inx].mn,min(st[inx*2].mn,st[inx].mx));
st[inx*2].mx=min(st[inx].mx,max(st[inx*2].mx,st[inx].mn));
st[inx*2+1].mn=max(st[inx].mn,min(st[inx*2+1].mn,st[inx].mx));
st[inx*2+1].mx=min(st[inx].mx,max(st[inx*2+1].mx,st[inx].mn));
}
}
void push_up(int inx)
{
st[inx].mn=min(st[inx*2].mn,st[inx*2+1].mn);
st[inx].mx=max(st[inx*2].mx,st[inx*2+1].mx);
}
void add(int ql,int qr,int val,int l=0,int r=n-1,int inx=1)
{
pull(inx,l,r);
if(ql<=l&&r<=qr)
{
pull(inx,l,r,val);
return ;
}
if(ql>r||l>qr)
return ;
int mid=l+(r-l)/2;
add(ql,qr,val,l,mid,inx*2);
add(ql,qr,val,mid+1,r,inx*2+1);
push_up(inx);
}
void del(int ql,int qr,int val,int l=0,int r=n-1,int inx=1)
{
pull(inx,l,r);
if(ql<=l&&r<=qr)
{
pull(inx,l,r,-val);
return ;
}
if(ql>r||l>qr)
return ;
int mid=l+(r-l)/2;
del(ql,qr,val,l,mid,inx*2);
del(ql,qr,val,mid+1,r,inx*2+1);
push_up(inx);
}
int query(int pos,int l=0,int r=n-1,int inx=1)
{
pull(inx,l,r);
if(l==r)
return st[inx].mn;
int mid=l+(r-l)/2;
int res;
if(pos<=mid)
res=query(pos,l,mid,inx*2);
else
res=query(pos,mid+1,r,inx*2+1);
push_up(inx);
return res;
}
void buildWall(int N,int q,v(int)op,v(int)left,
v(int)right,v(int)height,v(int)finalHeight)
{
n=N;
for(int i=0;i<q;i++)
{
if(op[i]&1)
add(left[i],right[i],height[i]);
else
del(left[i],right[i],height[i]);
}
for(int i=0;i<n;i++)
finalHeight[i]=query(i);
}