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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#618850 | #8179. 2D Parentheses | Fiyuls | WA | 114ms | 23848kb | C++14 | 3.0kb | 2024-10-07 11:00:59 | 2024-10-07 11:00:59 |
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("No");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);
}
}
if(n<=1000){
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: 12208kb
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: 2ms
memory: 12092kb
input:
2 1 0 0 1 2 3 3 2
output:
No
result:
ok answer is NO
Test #3:
score: 0
Accepted
time: 0ms
memory: 9956kb
input:
1 1 1 0 0
output:
No
result:
ok answer is NO
Test #4:
score: -100
Wrong Answer
time: 114ms
memory: 23848kb
input:
199996 94702923 895749121 -830347683 823853414 -638337012 -528381915 774504965 -903560893 465975432 931026841 47062323 901390864 539345338 830099354 278774201 896803047 -445303873 568413124 80473317 828648317 804283391 -307873779 543648687 893783688 814084625 -664894626 169476937 -999435847 -8232728...
output:
Yes 125911 119010 125993 60528 74780 103293 12826 198023 39416 30857 44526 164776 33755 111711 44237 58889 173973 186877 141927 72913 144281 98374 38650 165032 162909 78378 63476 31857 62483 22532 180060 22555 145165 122128 121148 156904 78207 4450 107334 29064 139898 22634 14382 133368 13162 14182 ...
result:
wrong answer 1st words differ - expected: '21701', found: '125911'