QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#488698 | #9155. 集合 | zxh923 | 100 ✓ | 877ms | 32836kb | C++14 | 1.3kb | 2024-07-24 14:13:11 | 2024-07-24 14:13:11 |
Judging History
answer
#include<bits/stdc++.h>
#define int long long
#define ull unsigned long long
#define N 600005
using namespace std;
int n,m,q,a[N][3],b[N][3];
ull nowa[N],nowb[N],suma,sumb,p[N];
int ri[N];//使[i,j]合法的最靠右的j
ull get_rnd(ull x){
return x*x*x;//随便变换一下
}
void work(int id,int type){
for(int j=0;j<3;j++){
ull i=a[id][j];
suma-=get_rnd(nowa[i]);//把原来的值减掉
nowa[i]+=type*p[id];//看情况加上或减去这个位置的哈希值
suma+=get_rnd(nowa[i]);//加上现在的值
}
for(int j=0;j<3;j++){//这里同理
ull i=b[id][j];
sumb-=get_rnd(nowb[i]);
nowb[i]+=type*p[id];
sumb+=get_rnd(nowb[i]);
}
}
signed main(){
srand(time(0));
cin>>n>>m>>q;
for(int i=1;i<=n;i++){
for(int j=0;j<3;j++){
cin>>a[i][j];
}
}
for(int i=1;i<=n;i++){
for(int j=0;j<3;j++){
cin>>b[i][j];
}
}
for(int i=1;i<=n;i++){
ri[i]=n;
}
for(int i=1;i<=n;i++){
p[i]=rand()*rand()+923;
}
work(1,1);
for(int i=1,j=1;i<=n;i++){
while(j<=n&&suma==sumb){//如果当前仍然合法
j++;
if(j>n)break;
work(j,1);
}
ri[i]=min(ri[i],j-1);
work(i,-1);//i要右移,所以撤掉这一位的贡献
}
while(q--){
int l,r;
cin>>l>>r;
cout<<(ri[l]>=r?"Yes\n":"No\n");
}
return 0;
}
Details
Pretests
Pretest #1:
score: 5
Accepted
time: 0ms
memory: 9912kb
Pretest #2:
score: 5
Accepted
time: 2ms
memory: 9844kb
Pretest #3:
score: 5
Accepted
time: 2ms
memory: 9828kb
Pretest #4:
score: 5
Accepted
time: 2ms
memory: 9896kb
Pretest #5:
score: 5
Accepted
time: 0ms
memory: 9908kb
Pretest #6:
score: 5
Accepted
time: 1ms
memory: 9968kb
Pretest #7:
score: 5
Accepted
time: 2ms
memory: 9848kb
Pretest #8:
score: 5
Accepted
time: 0ms
memory: 9920kb
Pretest #9:
score: 5
Accepted
time: 92ms
memory: 9948kb
Pretest #10:
score: 5
Accepted
time: 75ms
memory: 9776kb
Pretest #11:
score: 5
Accepted
time: 220ms
memory: 21712kb
Pretest #12:
score: 5
Accepted
time: 244ms
memory: 24996kb
Pretest #13:
score: 5
Accepted
time: 4ms
memory: 9920kb
Pretest #14:
score: 5
Accepted
time: 5ms
memory: 9960kb
Pretest #15:
score: 5
Accepted
time: 523ms
memory: 9860kb
Pretest #16:
score: 5
Accepted
time: 480ms
memory: 11988kb
Pretest #17:
score: 5
Accepted
time: 17ms
memory: 13908kb
Pretest #18:
score: 5
Accepted
time: 22ms
memory: 13108kb
Pretest #19:
score: 5
Accepted
time: 726ms
memory: 24724kb
Pretest #20:
score: 5
Accepted
time: 844ms
memory: 32836kb
Final Tests
Test #1:
score: 5
Accepted
time: 2ms
memory: 9820kb
Test #2:
score: 5
Accepted
time: 0ms
memory: 9816kb
Test #3:
score: 5
Accepted
time: 0ms
memory: 9824kb
Test #4:
score: 5
Accepted
time: 2ms
memory: 9912kb
Test #5:
score: 5
Accepted
time: 2ms
memory: 9760kb
Test #6:
score: 5
Accepted
time: 0ms
memory: 9824kb
Test #7:
score: 5
Accepted
time: 0ms
memory: 9904kb
Test #8:
score: 5
Accepted
time: 2ms
memory: 9820kb
Test #9:
score: 5
Accepted
time: 107ms
memory: 9908kb
Test #10:
score: 5
Accepted
time: 103ms
memory: 9924kb
Test #11:
score: 5
Accepted
time: 256ms
memory: 21624kb
Test #12:
score: 5
Accepted
time: 255ms
memory: 21620kb
Test #13:
score: 5
Accepted
time: 4ms
memory: 9828kb
Test #14:
score: 5
Accepted
time: 0ms
memory: 9956kb
Test #15:
score: 5
Accepted
time: 508ms
memory: 9984kb
Test #16:
score: 5
Accepted
time: 498ms
memory: 9892kb
Test #17:
score: 5
Accepted
time: 16ms
memory: 10132kb
Test #18:
score: 5
Accepted
time: 23ms
memory: 15100kb
Test #19:
score: 5
Accepted
time: 794ms
memory: 25076kb
Test #20:
score: 5
Accepted
time: 877ms
memory: 30708kb
Extra Test:
score: 0
Extra Test Passed