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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#349646 | #4236. Triangular Logs | LaStataleBlue | WA | 1ms | 3656kb | C++23 | 4.5kb | 2024-03-10 03:31:42 | 2024-03-10 03:31:43 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int MAXN = 100'005, NUM = 44, inf = 1e9+7;
int contx=0,conty=0;
array<int,NUM> inf2;
array<int,NUM> merge(array<int,NUM> a,array<int,NUM> b){
array<int,NUM> res;
int inda=0,indb=0;
for(int i=0;i<NUM;i++){
if(inda==NUM)res[i]=b[indb++];
else if(indb==NUM)res[i]=a[inda++];
else if(a[inda]<b[indb]){
res[i]=a[inda++];
}else{
res[i]=b[indb++];
}
}
return res;
}
#define _mid (_l+_r)/2
struct SegmentTree2{
array<int,NUM> maxi;
SegmentTree2 *left,*right;
static SegmentTree2* newSeg();
void checkleft(){
if(left==nullptr)left=newSeg();
}
void checkright(){
if(right==nullptr)right=newSeg();
}
void update(int pos,int val,int _l,int _r){
if(pos<_l || pos>_r)return;
for(int i=0;i<NUM;i++){
if(maxi[i]>val){
for(int j=i+1;j<NUM;j++){
maxi[j]=maxi[j-1];
}
maxi[i]=val;
break;
}
}
if(_l!=_r){
if(pos<=_mid){
checkleft();
left->update(pos,val,_l,_mid);
}
if(pos>_mid){
checkright();
right->update(pos,val,_mid+1,_r);
}
}
}
array<int,NUM> query(int l,int r,int _l,int _r){
if(r<_l || l>_r || l>r)return inf2;
if(_l>=l && _r<=r)return maxi;
array<int,NUM> res = inf2;
if(left!=nullptr){
res = merge(res,left->query(l,r,_l,_mid));
}
if(right!=nullptr){
res = merge(res,right->query(l,r,_mid+1,_r));
}
return res;
}
};
SegmentTree2 vett2[11'000'000];
int cc2=0;
SegmentTree2* SegmentTree2::newSeg(){
if(cc2==11'000'000)exit(0);
int ind = cc2++;
vett2[ind].maxi=inf2;
return &vett2[ind];
}
struct SegmentTree{
SegmentTree2 *ds;
SegmentTree *left,*right;
static SegmentTree* newSeg(int _l,int _r);
void update(int x,int y,int val,int _l,int _r){
if(_r<x || _l>x)return;
ds->update(y,val,0,conty);
if(_l!=_r){
left->update(x,y,val,_l,_mid);
right->update(x,y,val,_mid+1,_r);
}
}
array<int,NUM> query(int x1,int x2,int y1,int y2,int _l,int _r){
if(x1>_r || x2<_l || x1>x2)return inf2;
if(_l>=x1 && _r<=x2)return ds->query(y1,y2,0,conty);
return merge(left->query(x1,x2,y1,y2,_l,_mid),right->query(x1,x2,y1,y2,_mid+1,_r));
}
};
SegmentTree vett[MAXN*2+10];
int cc=0;
SegmentTree* SegmentTree::newSeg(int _l,int _r){
if(cc==MAXN*2+10)while(true);//exit(0);
int ind = cc++;
vett[ind].ds = SegmentTree2::newSeg();
if(_l!=_r){
vett[ind].left=newSeg(_l,_mid);
vett[ind].right=newSeg(_mid+1,_r);
}
return &vett[ind];
}
void solve([[maybe_unused]] int t){
int n,q;
cin>>n>>q;
vector<int> x(n),y(n),h(n);
map<int,int> tmpx,tmpy;
for(int i=0;i<n;i++){
cin>>x[i]>>y[i]>>h[i];
tmpx[x[i]]=0;
tmpy[y[i]]=0;
}
tmpx[inf]=tmpy[inf]=0;
for(auto &[i,j] : tmpx){
j=contx++;
}
for(auto &[i,j] : tmpy){
j=conty++;
}
SegmentTree *ds = SegmentTree::newSeg(0,contx);
for(int i=0;i<n;i++){
ds->update(tmpx[x[i]],tmpy[y[i]],h[i],0,contx);
}
for(int i=0;i<q;i++){
int x1,y1,x2,y2;
cin>>x1>>y1>>x2>>y2;
x1 = tmpx.lower_bound(x1)->second;
y1 = tmpy.lower_bound(y1)->second;
x2 = tmpx.lower_bound(x2)->second;
y2 = tmpy.lower_bound(y2)->second;
array<int,NUM> ans = ds->query(x1,x2,y1,y2,0,contx);
//for(int i=0;i<10;i++){
// cout<<ans[i]<<" ";
//}
//cout<<"ecco\n";
bool ok = false;
for(int j=2;j<NUM;j++){
if(ans[j]==inf)continue;
if(ans[j]<ans[j-1]+ans[j-2])ok=true;
}
cout<<ok<<"\n";
}
}
int main(){
ios::sync_with_stdio(false);
cin.tie(0);
for(int i=0;i<NUM;i++)inf2[i]=inf;
int t=1;
//cin>>t;
for(int i=1;i<=t;i++)solve(i);
return 0;
}
Details
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Test #1:
score: 0
Wrong Answer
time: 1ms
memory: 3656kb
input:
9 5 1 3 3 2 3 1 3 3 4 1 2 1 2 2 5 3 2 9 1 1 2 2 1 6 3 1 5 1 1 1 2 1 1 2 2 1 1 1 3 1 2 3 2 1 1 3 3
output:
0 1 1 0 1
result:
wrong answer 3rd lines differ - expected: '0', found: '1'