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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#618847 | #8179. 2D Parentheses | Fiyuls | WA | 2ms | 12136kb | C++14 | 3.0kb | 2024-10-07 10:57:45 | 2024-10-07 10:57:45 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define PII pair<int,int>
#define ULL unsigned long long
#define make(a,b) make_pair(a,b)
mt19937 RDom(time(0));
const int maxn=4e5+5;
struct node{
int x,y,col,id;
bool operator<(const node a)const{
return (x==a.x)?y<a.y:x<a.x;
}
bool operator==(const node a)const{
return x==a.x and y==a.y;
}
bool operator>(const node a)const{
return (x==a.x)?y>a.y:x>a.x;
}
}nd[maxn];
struct pand{
int x,ly,ry,op;
ULL id;
}pa[maxn];
int n,m,Cnt,lc,lisa[maxn],Comp[maxn];
set<node> sn;
ULL Tre[maxn<<2];
ULL query(int u,int stdl,int stdr,int l,int r){if(l>r)return 0;
if(stdl==l and stdr==r){
return Tre[u];
}
int mid=(stdl+stdr)>>1,lson=(u<<1),rson=lson+1;
if(r<=mid)return query(lson,stdl,mid,l,r);else if(l>=mid+1)return query(rson,mid+1,stdr,l,r);
else{
return query(lson,stdl,mid,l,mid)+query(rson,mid+1,stdr,mid+1,r);
}
}
void modify(int u,int stdl,int stdr,int x,ULL d){
if(stdl==stdr){
Tre[u]+=d;
return;
}
int mid=(stdl+stdr)>>1,lson=(u<<1),rson=lson+1;
if(x<=mid){
modify(lson,stdl,mid,x,d);
}else{
modify(rson,mid+1,stdr,x,d);
}
Tre[u]=Tre[lson]+Tre[rson];
}
int main(){
scanf("%d",&n);
for(int i=1;i<=n;i++){
Cnt++,scanf("%d%d",&nd[Cnt].x,&nd[Cnt].y),nd[Cnt].id=i,nd[Cnt].col=0,lisa[++lc]=nd[Cnt].y;
}
for(int i=1;i<=n;i++){
Cnt++,scanf("%d%d",&nd[Cnt].x,&nd[Cnt].y),nd[Cnt].id=i,nd[Cnt].col=1,lisa[++lc]=nd[Cnt].y;
}
sort(nd+1,nd+1+Cnt,[](node a,node b){return (a.x==b.x)?a.col<b.col:a.x>b.x;});
for(int i=1;i<=Cnt;i++){
if(nd[i].col==1){
sn.insert(nd[i]);
}else{
auto p=sn.upper_bound(nd[i]);
if(p==sn.end()){
printf("Nie");return 0;
}
ULL Hash=RDom();
Comp[nd[i].id]=(*p).id,pa[++m]=pand{(*p).x,nd[i].y,(*p).y,+1,Hash},pa[++m]=pand{nd[i].x,nd[i].y,(*p).y,-1,Hash},sn.erase(p);
}
}
sort(pa+1,pa+1+m,[](pand a,pand b){return (a.x==b.x)?a.op<b.op:a.x>b.x;}),sort(lisa+1,lisa+1+lc),lc=unique(lisa+1,lisa+1+lc)-(lisa+1);
for(int i=1,j=1;i<=m;i++){
pa[i].ly=lower_bound(lisa+1,lisa+1+lc,pa[i].ly)-lisa;
pa[i].ry=lower_bound(lisa+1,lisa+1+lc,pa[i].ry)-lisa;
while(pa[j].x!=pa[i].x){
if(pa[j].op==1){
modify(1,1,lc,pa[j].ly,+pa[j].id*pa[j].op);
modify(1,1,lc,pa[j].ry,+pa[j].id*pa[j].op);
}
j++;
}
if(pa[i].op==1){
if(query(1,1,lc,pa[i].ly+1,pa[i].ry-1)){
printf("No");
return 0;
}
}else{
modify(1,1,lc,pa[i].ly,+pa[i].id*pa[i].op);
modify(1,1,lc,pa[i].ry,+pa[i].id*pa[i].op);
}
}
printf("Yes\n");
for(int i=1;i<=n;i++){
printf("%d\n",Comp[i]);
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 2ms
memory: 12136kb
input:
3 0 0 2 -2 1 1 2 2 3 1 2 3
output:
Yes 3 2 1
result:
ok answer is YES, 3 tokens
Test #2:
score: 0
Accepted
time: 0ms
memory: 10096kb
input:
2 1 0 0 1 2 3 3 2
output:
No
result:
ok answer is NO
Test #3:
score: -100
Wrong Answer
time: 1ms
memory: 9992kb
input:
1 1 1 0 0
output:
Nie
result:
wrong output format YES or NO expected, but NIE found