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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 |
---|---|---|---|---|---|---|---|---|---|
#657371 | #2788. Horses | Pioneer# | 17 | 1296ms | 46992kb | C++20 | 2.8kb | 2024-10-19 14:39:11 | 2024-10-19 14:39:13 |
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);
mark[v]=(mark[2*v]|mark[2*v+1]);
if(t[2*v]*1ll*t[2*v+1]>=mod){
mark[v]=1;
}
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()){
// 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 max(get(pos),ty.get(1,1,n,1,n).first);
}
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();
}
详细
Subtask #1:
score: 17
Accepted
Test #1:
score: 17
Accepted
time: 0ms
memory: 13352kb
input:
1 2 3 0
output:
6
result:
ok single line: '6'
Test #2:
score: 17
Accepted
time: 2ms
memory: 13040kb
input:
10 2 1 1 5 2 1 1 10 5 1 3 5 7 9 4 1 4 10 10 9 0
output:
10000
result:
ok single line: '10000'
Test #3:
score: 17
Accepted
time: 0ms
memory: 13112kb
input:
10 10 10 10 1 1 1 1 1 1 1 2 3 4 2 7 6 5 4 3 2 0
output:
7000
result:
ok single line: '7000'
Test #4:
score: 17
Accepted
time: 0ms
memory: 12432kb
input:
10 9 1 1 1 1 1 1 1 1 2 4 1 1 1 1 1 1 1 1 2 0
output:
36
result:
ok single line: '36'
Test #5:
score: 17
Accepted
time: 2ms
memory: 11956kb
input:
10 1 1 1 1 1 1 1 1 1 1 1 2 3 4 5 6 7 8 9 10 0
output:
10
result:
ok single line: '10'
Test #6:
score: 17
Accepted
time: 1ms
memory: 12440kb
input:
10 1 1 1 1 1 1 1 1 1 1 10 9 8 7 6 5 4 3 2 1 0
output:
10
result:
ok single line: '10'
Test #7:
score: 17
Accepted
time: 2ms
memory: 12008kb
input:
10 10 10 10 1 1 1 1 1 1 1 10 10 2 3 4 5 6 7 8 9 0
output:
9000
result:
ok single line: '9000'
Test #8:
score: 17
Accepted
time: 0ms
memory: 12616kb
input:
10 10 10 10 1 1 1 1 1 1 1 10 10 9 8 7 6 5 4 3 2 0
output:
9000
result:
ok single line: '9000'
Test #9:
score: 17
Accepted
time: 2ms
memory: 13552kb
input:
10 1 1 1 1 2 2 1 1 1 1 8 8 8 8 1 1 2 2 2 2 0
output:
8
result:
ok single line: '8'
Test #10:
score: 17
Accepted
time: 0ms
memory: 12960kb
input:
10 1 1 1 1 1 1 1 1 1 1 1 2 3 4 5 9 8 7 6 1 0
output:
9
result:
ok single line: '9'
Test #11:
score: 17
Accepted
time: 3ms
memory: 13144kb
input:
2 2 5 9 7 0
output:
70
result:
ok single line: '70'
Test #12:
score: 17
Accepted
time: 2ms
memory: 12328kb
input:
1 1 1 0
output:
1
result:
ok single line: '1'
Test #13:
score: 17
Accepted
time: 0ms
memory: 12984kb
input:
7 7 1 1 6 2 3 2 7 6 5 4 3 7 1 0
output:
1764
result:
ok single line: '1764'
Test #14:
score: 17
Accepted
time: 0ms
memory: 13676kb
input:
1 10 10 0
output:
100
result:
ok single line: '100'
Test #15:
score: 17
Accepted
time: 0ms
memory: 13848kb
input:
2 1 4 7 2 0
output:
8
result:
ok single line: '8'
Test #16:
score: 17
Accepted
time: 0ms
memory: 12096kb
input:
10 1 10 1 10 1 1 10 1 1 1 7 3 10 10 4 10 1 4 5 10 0
output:
10000
result:
ok single line: '10000'
Test #17:
score: 17
Accepted
time: 0ms
memory: 12484kb
input:
6 1 1 1 1 1 1 1 1 1 1 1 1 0
output:
1
result:
ok single line: '1'
Test #18:
score: 17
Accepted
time: 0ms
memory: 13852kb
input:
4 1 2 4 8 8 4 2 1 0
output:
64
result:
ok single line: '64'
Test #19:
score: 17
Accepted
time: 2ms
memory: 12380kb
input:
6 1 2 2 3 1 1 7 1 1 2 1 1 0
output:
24
result:
ok single line: '24'
Test #20:
score: 17
Accepted
time: 0ms
memory: 12936kb
input:
10 2 1 1 5 2 1 1 10 5 1 3 5 7 9 4 1 4 10 7 9 0
output:
9000
result:
ok single line: '9000'
Subtask #2:
score: 0
Wrong Answer
Dependency #1:
100%
Accepted
Test #21:
score: 0
Wrong Answer
time: 3ms
memory: 12940kb
input:
10 10 10 10 10 10 10 1 1 1 1 1 1 1 1 9 5 4 7 3 2 5 1 5 1 2 5 123456789 1 5 1 1 8 987654321 1 9 777777777
output:
7000000 900000 678813585 678813585 294225928 123456789
result:
wrong answer 6th lines differ - expected: '75803567', found: '123456789'
Subtask #3:
score: 0
Wrong Answer
Test #33:
score: 0
Wrong Answer
time: 1296ms
memory: 46992kb
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 959844135 978624926 978624926 978624926 978624926 978624926 940183683 885987581 877695782 858627528 936204112 936204112 936204112 936204112 936204112 842685874 842685874 842685874 885981330 885981330 885981330 885981330 885981330 902109012 902109012 902109012 902109012 902109012 891530530 ...
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:
100%
Accepted
Dependency #2:
0%