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>
using namespace std;
/* struct node{
node *l,*r;
int mx,mn;
void addtag(int t,int x){
if(t==1)mn=max(mn,x),mx=max(mx,mn);
else mx=min(mx,x),mn=min(mn,mx);
}
void push(){
if(!l)return;
l->addtag(1,mn);
l->addtag(2,mx);
r->addtag(1,mn);
r->addtag(2,mx);
mx=1e9,mn=-1e9;
}
node():l(0),r(0),mx(1e9),mn(-1e9){}
} *root,pool[6000001]; */
int lc[6000001],rc[6000001],mx[6000001],mn[6000001],ptr=0;
void addtag(int now,int t,int x){
if(t==1)mn[now]=max(mn[now],x),mx[now]=max(mx[now],mn[now]);
else mx[now]=min(mx[now],x),mn[now]=min(mn[now],mx[now]);
}
void push(int now){
if(!lc[now])return;
addtag(lc[now],1,mn[now]);
addtag(lc[now],2,mx[now]);
addtag(rc[now],1,mn[now]);
addtag(rc[now],2,mx[now]);
mn[now]=0,mx[now]=0x3f3f3f3f;
}
int *ans;
#define mid ((l+r)>>1)
void build(int now,int l,int r){
if(l==r){ return; }
build(lc[now]=++ptr,l,mid);
build(rc[now]=++ptr,mid+1,r);
}
void modify(int now,int l,int r,int ml,int mr,int t,int x){
if(r<ml || mr<l)return;
push(now);
if(ml<=l&&r<=mr){
addtag(now,t,x);
return;
}
modify(lc[now],l,mid,ml,mr,t,x);
modify(rc[now],mid+1,r,ml,mr,t,x);
}
void dfs(int now,int l,int r){
// mn=max(mn,now->mn); mx=max(mx,now->mx);
push(now);
if(l==r){
ans[l]=mn[now];
return;
}
dfs(lc[now],l,mid);
dfs(rc[now],mid+1,r);
}
void buildWall(int n,int q,int types[],int ls[],int rs[],int hs[],int __ans[]){
memset(mx,0x3f,sizeof(mx));
ans=__ans;
build(0,0,n-1);
for(int i=0;i<q;++i){
modify(0,0,n-1,ls[i],rs[i],types[i],hs[i]);
}
dfs(0,0,n-1);
}
#ifdef WEAK
int __o[500005],__l[500005],__r[500005],__h[500005],__ans[2000005];
int main(){
int n; cin>>n;
int q; cin>>q;
for(int i=0;i<q;++i)cin>>__o[i]>>__l[i]>>__r[i]>>__h[i];
buildWall(n,q,__o,__l,__r,__h,__ans);
for(int i=0;i<n;++i)cout<<__ans[i]<<" ";
cout<<endl;
}
#endif
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