QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#618847#8179. 2D ParenthesesFiyulsWA 2ms12136kbC++143.0kb2024-10-07 10:57:452024-10-07 10:57:45

Judging History

你现在查看的是最新测评结果

  • [2024-10-07 10:57:45]
  • 评测
  • 测评结果:WA
  • 用时:2ms
  • 内存:12136kb
  • [2024-10-07 10:57:45]
  • 提交

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

Tip: Click on the bar to expand more detailed information

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