QOJ.ac
QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#670875 | #5113. Bridge | LYLAKIOIAKIOI | RE | 3ms | 29804kb | C++14 | 4.7kb | 2024-10-24 07:46:46 | 2024-10-24 07:46:47 |
Judging History
answer
#include<bits/stdc++.h>
#define pii pair<int,int>
#define fi first
#define se second
#define mk make_pair
#define ll long long
using namespace std;
const int N=5e5+10;
struct FHQ{
struct tree{
int ls,rs,ky,sz,fa,rd,bl;
}T[N];int tot=0;
#define lc(x) T[x].ls
#define rc(x) T[x].rs
#define fa(x) T[x].fa
inline void sp(int now,int ky,int &mn,int &mx){
if(!now){
mn=0;mx=0;return ;
}if(T[now].ky<=ky){
mn=now;
sp(rc(now),ky,rc(now),mx);
assert(now!=rc(now));
if(rc(now)) fa(rc(now))=now;
}else{
mx=now;
sp(lc(now),ky,mn,lc(now));
assert(now!=lc(now));
if(lc(now)) fa(lc(now))=now;
}
}inline int mg(int a,int b){
if(!a||!b) return a^b;
//return a;
if(T[a].rd<=T[b].rd){
rc(a)=mg(rc(a),b);
//cout<<rc(a)<<' '<<a<<endl;
assert(a!=rc(a));
if(rc(a)) fa(rc(a))=a;
return a;
}else{
lc(b)=mg(a,lc(b));
//cout<<lc(b)<<' '<<b<<endl;
assert(b!=lc(b));
if(lc(b)) fa(lc(b))=b;
return b;
}
}inline int add(int ky,int sz,int bl){
tree x=(tree){0,0,ky,sz,0,rand(),bl};//x.ky=ky,x.rd=rand(),x.sz=sz,x.bl=bl;x.rs=0,x.ls=0;x.fa=0;
T[++tot]=x;
return tot;
}int rt[N];
inline void init(int sz,int len){
for(int i=1;i<=sz;i++){
rt[i]=add(1,len,i);
}
}inline int sp_nd(int id,int len){
int olen=T[id].sz;
T[id].sz=len;
return add(T[id].ky+len,olen-len,T[id].bl);
}inline int dfs(int now,int tim){
//if(tim>1000) assert(0);
//cout<<now<<' '<<rc(now)<<endl;
if(!rc(now)||!now) return T[now].bl;return dfs(rc(now),tim+1);
}inline int fd_r(int now,int tim){
//if(tim>1000) assert(0);
//if(now==fa(now)&&now!=0){
// cout<<now<<endl;exit(0);
//}
if(!fa(now)||!now) return now;//cout<<"JP8"<<tim<<endl;;
return fd_r(fa(now),tim+1);
}
}FHQ;
int n,m,q;
struct qu{
int l,r,bl;
bool operator<(const qu &b)const{
if(l==b.l) return r<b.r;
else return l<b.l;
}bool operator>(const qu &b)const{
if(l==b.l) return r>b.r;
else return l>b.l;
}
};
set<qu> bel[N];
inline int fd(int x,int y){
/*for(auto it:bel[x]){
cout<<it.l<<' '<<it.r<<' '<<it.bl<<endl;
}*/
auto ed=bel[x].upper_bound((qu){y,0x3f3f3f3f,0});
//cout<<(*(--ed)).bl<<"---"<<endl;
//if(ed!=bel[x].end()) cout<<(*ed).bl<<' ';
//auto f=ed;f--;cout<<(*f).bl<<' '<<(*f).l<<' '<<(*f).r<<"---"<<endl;
return (*(--ed)).bl;
}
int main(){
//double c=clock();
srand(time(0));
ios::sync_with_stdio(0);
cin>>n>>m>>q;
FHQ.init(n,m+1);for(int i=1;i<=n;i++) bel[i].insert((qu){1,m+1,i});
while(q--){
int op;cin>>op;int a1,b1;
if(op==1) cin>>a1>>b1;else cin>>a1;
if(op==1){
int x=fd(a1,b1+1),y=fd(a1+1,b1+1);
//cout<<x<<' '<<y<<endl;
int rx=FHQ.fd_r(x,0),ry=FHQ.fd_r(y,0);
int pl=FHQ.T[x].ky-1,pr=FHQ.T[y].ky-1;
int ql=FHQ.T[x].sz+pl,qr=FHQ.T[y].sz+pr;
int a=0,b=0,c=0,d=0,e=0,f=0;
FHQ.sp(rx,pl,a,b);FHQ.sp(ry,pr,d,e);
FHQ.sp(b,ql,b,c);FHQ.sp(e,qr,e,f);
bel[FHQ.T[b].bl].erase((qu){FHQ.T[b].ky,FHQ.T[b].ky+FHQ.T[b].sz-1,b});
bel[FHQ.T[e].bl].erase((qu){FHQ.T[e].ky,FHQ.T[e].ky+FHQ.T[e].sz-1,e});
//assert(b<=400000);
int ga=FHQ.sp_nd(b,b1-FHQ.T[b].ky+1),gb=FHQ.sp_nd(e,b1-FHQ.T[e].ky+1);
//cout<<a<<' '<<b<<' '<<c<<endl;
//cout<<d<<' '<<e<<' '<<f<<endl;
//cout<<ga<<' '<<gb<<endl;
//cout<<FHQ.T[b].ky<<' '<<FHQ.T[e].ky<<endl;
bel[FHQ.T[b].bl].insert((qu){FHQ.T[b].ky,FHQ.T[b].ky+FHQ.T[b].sz-1,b});
bel[FHQ.T[e].bl].insert((qu){FHQ.T[e].ky,FHQ.T[e].ky+FHQ.T[e].sz-1,e});
bel[FHQ.T[ga].bl].insert((qu){FHQ.T[ga].ky,FHQ.T[ga].ky+FHQ.T[ga].sz-1,ga});
bel[FHQ.T[gb].bl].insert((qu){FHQ.T[gb].ky,FHQ.T[gb].ky+FHQ.T[gb].sz-1,gb});
rx=FHQ.mg(FHQ.mg(a,b),FHQ.mg(gb,f));
ry=FHQ.mg(FHQ.mg(d,e),FHQ.mg(ga,c));
}else{
int x=fd(a1,1);
//cout<<x<<' ';
int r=FHQ.fd_r(x,0);
//cout<<r<<" fd"<<endl;
//cout<<r<<endl;
cout<<FHQ.dfs(r,0)<<endl;
}
//if((((clock()-c)/CLOCKS_PER_SEC)>1.0)) exit(0);
}cout.flush();//cerr<<(clock()-c)/CLOCKS_PER_SEC;
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 3ms
memory: 29804kb
input:
3 4 13 2 2 1 1 3 2 1 2 2 2 3 1 2 4 2 1 2 2 2 3 1 2 1 2 1 2 2 2 3
output:
2 2 1 3 3 1 2 3 2 1
result:
ok 10 numbers
Test #2:
score: -100
Runtime Error
input:
3 100000 99997 2 2 2 2 2 3 2 3 2 3 2 3 2 3 1 2 11047 1 1 98732 1 2 90045 1 1 43556 2 1 2 3 1 2 17242 1 1 17027 2 1 1 1 94195 2 1 2 2 2 1 2 3 1 1 34124 1 2 14354 1 2 673 1 2 39812 1 2 35520 1 2 16046 2 3 2 2 1 1 25410 2 3 2 1 2 3 2 2 1 2 55684 2 1 1 2 24811 1 2 92268 1 2 60268 2 2 1 1 89272 1 2 19232...
output:
2 2 3 3 3 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1