QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#657291 | #2788. Horses | Pioneer# | 0 | 1287ms | 46632kb | C++20 | 2.7kb | 2024-10-19 14:31:28 | 2024-10-19 14:31:28 |
Judging History
answer
#include "horses.h"
#include <bits/stdc++.h>
#define ll long long
using namespace std;
const ll inf=1e9;
const int mod=1e9+7;
const int MAX=5e5+10;
struct segtree{
int t[4*MAX];
bool mark[4*MAX];
segtree(){
memset(mark,0,sizeof(mark));
}
void update(int v,int tl,int tr,int pos,int x){
if(tl==tr){
t[v]=x;
return;
}
int tm=(tl+tr)/2;
if(pos<=tm)update(2*v,tl,tm,pos,x);
else update(2*v+1,tm+1,tr,pos,x);
if(t[2*v]*1ll*t[2*v+1]>=mod){
mark[v]=1;
}
else{
mark[v]=0;
}
t[v]=(t[2*v]*1ll*t[2*v+1])%mod;
}
pair<int,bool> mrg(pair<int,bool> a,pair<int,bool> b){
pair<int,bool> res={a.first*1ll*b.first%mod,(a.second|b.second)};
if(a.first*1ll*b.first>=mod){
res.second=1;
}
return res;
}
pair<int,bool> get(int v,int tl,int tr,int l,int r){
if(l>r||tl>r||l>tr)return {1,0};
if(l<=tl&&tr<=r)return {t[v],mark[v]};
int tm=(tl+tr)/2;
return mrg(get(2*v,tl,tm,l,r),get(2*v+1,tm+1,tr,l,r));
}
}tx;
struct segtreeMx{
pair<int,int> t[MAX];
pair<int,int> mrg(pair<int,int> a,pair<int,int> b){
if(a.first>=b.first)return a;
else return b;
}
void update(int v,int tl,int tr,int pos,int x){
if(tl==tr){
t[v]={x,tl};
return;
}
int tm=(tl+tr)/2;
if(pos<=tm)update(2*v,tl,tm,pos,x);
else update(2*v+1,tm+1,tr,pos,x);
t[v]=mrg(t[2*v],t[2*v+1]);
}
pair<int,int> get(int v,int tl,int tr,int l,int r){
if(l>r||tl>r||l>tr)return {0,0};
if(l<=tl&&tr<=r)return t[v];
int tm=(tl+tr)/2;
return mrg(get(2*v,tl,tm,l,r),get(2*v+1,tm+1,tr,l,r));
}
}ty;
int n;
set<int> st;
int x[MAX];
int y[MAX];
int get(int pos){
return tx.get(1,1,n,1,pos).first*1ll*y[pos]%mod;
}
int get(){
if(st.empty())return ty.get(1,1,n,1,n).first;
vector<int> vec;
int pos=ty.get(1,1,n,*st.rbegin(),n).second;
vec.push_back(*st.rbegin());
st.erase(--st.end());
while(!st.empty()&&vec.size()<=40){
assert(*st.rbegin()==vec.back()-1);
int pos1=ty.get(1,1,n,*st.rbegin(),vec.back()-1).second;
vec.push_back(*st.rbegin());
st.erase(--st.end());
pair<int,bool> bf=tx.get(1,1,n,pos1+1,pos);
if(bf.second||bf.first*1ll*y[pos]>=mod)break;
if(bf.first*y[pos]<=y[pos1])pos=pos1;
}
for(int x:vec)st.insert(x);
return get(pos);
}
int init(int N, int X[], int Y[]) {
n=N;
for(int i=0;i<N;i++){
y[i+1]=Y[i];
x[i+1]=X[i];
tx.update(1,1,N,i+1,X[i]);
ty.update(1,1,N,i+1,Y[i]);
if(X[i]!=1){
st.insert(i+1);
}
}
return get();
}
int updateX(int pos, int val) {
pos++;
if(x[pos]!=1)st.erase(pos);
x[pos]=val;
tx.update(1,1,n,pos,val);
if(x[pos]!=1)st.insert(pos);
return get();
}
int updateY(int pos, int val) {
pos++;
y[pos]=val;
ty.update(1,1,n,pos,val);
return get();
}
Details
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Subtask #1:
score: 0
Runtime Error
Test #1:
score: 17
Accepted
time: 2ms
memory: 11196kb
input:
1 2 3 0
output:
6
result:
ok single line: '6'
Test #2:
score: 0
Runtime Error
input:
10 2 1 1 5 2 1 1 10 5 1 3 5 7 9 4 1 4 10 10 9 0
output:
Unauthorized output
result:
Subtask #2:
score: 0
Skipped
Dependency #1:
0%
Subtask #3:
score: 0
Wrong Answer
Test #33:
score: 0
Wrong Answer
time: 1287ms
memory: 46632kb
input:
500000 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2...
output:
942713367 942713367 590416038 946135722 170737482 170737482 170737482 170737482 170737482 877695782 107743536 107743536 107743536 107743536 107743536 842685874 842685874 842685874 842685874 842685874 214274943 214274943 214274943 214274943 214274943 10116410 10116410 10116410 10116410 10116410 50714...
result:
wrong answer 1st lines differ - expected: '967631222', found: '942713367'
Subtask #4:
score: 0
Skipped
Dependency #2:
0%
Subtask #5:
score: 0
Skipped
Dependency #1:
0%