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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#591346 | #8338. Quad Kingdoms Chess | Rosmontispes | WA | 97ms | 4596kb | C++20 | 3.5kb | 2024-09-26 15:30:27 | 2024-09-26 15:30:27 |
Judging History
answer
//14:23
#include<bits/stdc++.h>
using namespace std;
const int N = 100000 + 200;
const long long mod = 998244353;
const long long A = 13331;
long long pre[N];
long long qpow(long long x,long long t){
if(t == 0)
return 1;
else {
if(t % 2 == 0){
long long tmp = qpow(x,t / 2);
return tmp * tmp % mod;
} else {
return qpow(x,t - 1) * x % mod;
}
}
}
struct segtree{
#define ls(x) tree[x].ls
#define rs(x) tree[x].rs
struct node{
int mxlen,maxn,ls,rs;
long long hash;
};
int n,tot,rt;
vector<int>ar;
vector<node>tree;
segtree(int _n,vector<int>tmp):rt(0),tot(0),ar(tmp),n(_n),tree(4 * _n + 200){
build(1,n,rt);
}
pair<int,long long> qur(int x,int mx){
if(!x)
return {0,0};
if(!tree[x].ls && !tree[x].rs)
return {tree[x].mxlen,tree[x].hash};
if(tree[x].maxn < mx)
return {0,0};
if(tree[ls(x)].maxn < mx)
return qur(rs(x),mx);
if(tree[rs(x)].maxn >= mx){
pair<int,long long>ret = {tree[x].mxlen,tree[x].hash};
auto rret = qur(rs(x),mx);
ret.first = ret.first - tree[rs(x)].mxlen + rret.first;
ret.second = ((ret.second - tree[rs(x)].hash + mod) % mod * qpow(tree[rs(x)].mxlen,mod - 2) % mod * pre[rret.first] % mod + rret.second) % mod;
return ret;
} else {
return qur(ls(x),mx);
}
}
node merge(int x){
node tmp = tree[x];
if(tree[rs(x)].maxn > tree[ls(x)].maxn){
tmp.mxlen = tree[rs(x)].mxlen;
tmp.maxn = tree[rs(x)].maxn;
tmp.hash = tree[rs(x)].hash;
return tmp;
} else {
auto [len,lhash] = qur(ls(x),tree[rs(x)].maxn);
tmp.mxlen = tree[rs(x)].mxlen + len;
tmp.maxn = tree[ls(x)].maxn;
tmp.hash = (lhash * pre[tree[rs(x)].mxlen] % mod + tree[rs(x)].hash) % mod;
return tmp;
}
}
void build(int l,int r,int &x){
if(!x)
x = ++ tot;
if(l == r){
tree[x] = {1,ar[l],0,0,ar[l]};
return;
}
int mid = (l + r) / 2;
build(l,mid,ls(x)),build(mid + 1,r,rs(x));
tree[x] = merge(x);
}
void modify(int l,int r,int x,int k,int val){
if(l == r){
tree[x].maxn = tree[x].hash = val;
return;
}
int mid = (l + r) / 2;
if(k <= mid)
modify(l,mid,ls(x),k,val);
else
modify(mid + 1,r,rs(x),k,val);
tree[x] = merge(x);
}
};
void solve(){
int n,m;
cin>>n;
vector<int>p(n + 1);
for(int i = 1;i <= n;i ++)
cin>>p[i];
cin>>m;
vector<int>q(m + 1);
for(int i = 1;i <= m;i ++){
cin>>q[i];
}
segtree A(n,p),B(m,q);
int Q;
cin>>Q;
for(int i = 1;i <= Q;i ++){
int opr,k,val;
cin>>opr>>k>>val;
if(opr == 1)
A.modify(1,n,1,k,val);
else
B.modify(1,m,1,k,val);
if(A.tree[A.rt].hash == B.tree[B.rt].hash && A.tree[A.rt].mxlen == B.tree[B.rt].mxlen)
cout<<"YES\n";
else
cout<<"NO\n";
}
}
int main(){
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
pre[0] = 1;
for(int i = 1;i <= 100000;i ++){
pre[i] = pre[i - 1] * A % mod;
}
solve();
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 4400kb
input:
5 1 2 3 4 5 5 5 4 3 2 1 8 1 1 5 1 4 2 1 2 4 1 5 1 1 5 5 2 1 4 2 3 5 2 5 5
output:
NO NO NO YES NO NO NO YES
result:
ok 8 tokens
Test #2:
score: 0
Accepted
time: 67ms
memory: 4344kb
input:
1 2 6 2 1 1 1 1 1 200000 2 6 2 1 1 1 1 1 1 1 1 2 2 1 1 1 1 2 1 1 1 2 4 1 2 1 2 1 1 1 1 1 2 2 5 1 1 1 1 1 1 2 1 1 1 2 6 1 1 1 2 1 1 2 1 1 2 2 3 1 1 1 1 2 1 1 2 6 2 1 1 2 2 4 1 1 1 2 2 6 1 1 1 2 1 1 1 2 5 2 2 6 2 1 1 1 2 4 2 2 5 2 2 6 2 1 1 1 2 5 1 2 6 2 1 1 2 1 1 1 1 1 1 2 4 1 1 1 2 1 1 2 1 1 2 2 3 2...
output:
NO NO NO NO YES YES NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO YES YES YES NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO YES YES YES NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO N...
result:
ok 200000 tokens
Test #3:
score: 0
Accepted
time: 65ms
memory: 4596kb
input:
6 2 1 1 2 1 2 1 1 200000 2 1 1 1 1 2 1 1 1 2 1 2 2 1 1 2 1 1 2 1 2 2 1 2 1 1 2 1 3 1 1 6 2 1 5 2 1 4 2 1 3 1 2 1 2 1 4 2 1 4 2 2 1 2 2 1 2 1 3 1 1 6 1 1 1 2 2 1 1 1 6 1 1 3 1 1 5 2 1 6 2 1 5 2 2 1 2 1 2 1 1 5 2 2 1 1 2 1 1 1 6 1 2 1 2 2 1 1 1 3 2 2 1 1 1 6 1 1 4 2 1 2 1 1 1 1 2 1 1 1 2 1 1 6 2 1 6 2...
output:
NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO ...
result:
ok 200000 tokens
Test #4:
score: -100
Wrong Answer
time: 97ms
memory: 4408kb
input:
6 1 3 1 2 1 2 6 2 1 3 3 3 1 200000 2 4 2 1 2 1 1 6 2 2 3 2 1 1 1 1 6 2 1 6 2 1 3 2 2 6 1 2 4 3 1 1 2 2 5 2 2 6 2 2 3 1 1 4 3 1 3 1 2 5 2 2 4 2 2 1 3 1 1 1 2 2 2 2 4 2 1 5 3 1 6 3 2 6 3 1 5 3 2 5 3 2 4 1 2 4 2 1 1 2 1 6 1 2 6 1 1 2 3 1 1 3 1 1 1 2 6 3 2 4 1 1 4 2 2 2 1 1 3 1 1 1 3 1 1 3 1 4 3 1 3 3 2...
output:
NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO ...
result:
wrong answer 27th words differ - expected: 'YES', found: 'NO'