QOJ.ac
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 |
---|---|---|---|---|---|---|---|---|---|
#714118 | #5466. Permutation Compression | Wzy | WA | 1ms | 5652kb | C++14 | 3.2kb | 2024-11-05 21:46:00 | 2024-11-05 21:46:06 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long LL;
typedef pair<int,int> PII;
const int N=2e5+10,M=1e6+10;
const int mod=1e9+7;
int INF = 1e9;
int p[N];
int h[N],ne[M],e[M],idx;
int d[N];
LL res;
int n;
LL tr[N];
int T=1;
int lowbit(int x)
{
return x & -x;
}
void add(int x, int c)
{
for (int i = x; i <= n; i += lowbit(i)) tr[i] += c;
}
LL sum(int x)
{
LL res = 0;
for (int i = x; i; i -= lowbit(i)) res += tr[i];
return res;
}
void solve(){
int m,k;
cin>>n>>m>>k;
vector<int> a(n+10),st(n+10),b;
for(int i=0;i<=n;i++) tr[i]=0;
map<int,int> id;
for(int i=1;i<=n;i++) cin>>a[i];
a[0]=1e9,a[n+1]=1e9;
for(int i=0;i<m;i++){
int x;
cin>>x;
if(T==55) cout<<x<<" ";
st[x]=true;
}
if(T==55) cout<<endl;
for(int i=0;i<k;i++){
int x;
cin>>x;
b.push_back(x);
}
int ls=0,nx=n+1;
vector<int> req;
if(T==55){
cout<<n<<" "<<m<<" "<<k<<endl;
for(int i=1;i<=n;i++) cout<<a[i]<<" ";
cout<<endl;
for(auto t:b) cout<<t<<" ";
cout<<endl;
}
map<int,PII> mp;
int q[n+10],hh=0,tt=0;
q[0]=0;
for(int i=1;i<=n;i++){
id[a[i]]=i;
if(st[a[i]]) {
while(hh<=tt&&a[i]>a[q[tt]]) --tt;
q[++tt]=i;
}
else{
int l=0,r=tt;
while(l<r){
int mid=l+r+1>>1;
if(a[q[mid]]>a[i]) l=mid;
else r=mid-1;
}
mp[a[i]].first=q[l];
}
if(!st[a[i]]) req.push_back(a[i]);
}
hh=0,tt=0,q[0]=n+1;
for(int i=n;i>=1;i--){
if(st[a[i]]){
while(hh<=tt&&a[i]>a[q[tt]]) --tt;
q[++tt]=i;
}
else {
int l=0,r=tt;
while(l<r){
int mid=l+r+1>>1;
if(a[q[mid]]>a[i]) l=mid;
else r=mid-1;
}
mp[a[i]].second=q[l];
}
}
sort(req.begin(),req.end());
sort(b.begin(),b.end());
vector<int> res;
//for(auto [x,y]:mp) cout<<x<<" "<<y.first<<" "<<y.second<<endl;
for(int i=req.size()-1;i>=0;i--){
auto t=mp[req[i]];
int l=t.first,r=t.second;
int ans=sum(r-1)-sum(l);
//cout<<req[i]<<" "<<ans<<endl;
ans=r-l-ans-1;
//cout<<req[i]<<" "<<l<<" "<<r<<endl;
//cout<<req[i]<<" "<<ans<<endl;
res.push_back(ans);
add(id[req[i]],1);
}
sort(res.begin(),res.end());
if(res.size()>k) {
cout<<"NO"<<endl;
return;
}
bool sg=true;
int cnt=k-1;
//for(auto t:res) cout<<t<<" ";
//cout<<endl;
for(int i=res.size()-1;i>=0;i--){
while(cnt>=0&&res[i]<b[cnt]) cnt--;
if(cnt==-1){
sg=false;
break;
}
cnt--;
}
if(sg) cout<<"YES"<<endl;
else cout<<"NO"<<endl;
}
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin>>T;;
while(T--) solve();
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 5640kb
input:
3 5 2 3 5 1 3 2 4 5 2 1 2 4 5 5 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 3 2 2 3 1 2 3 2 2 3
output:
YES YES NO
result:
ok 3 lines
Test #2:
score: -100
Wrong Answer
time: 0ms
memory: 5652kb
input:
100 2 1 2 2 1 2 1 1 2 1 2 1 2 1 2 2 2 1 1 1 2 1 2 6 1 5 3 4 2 5 6 1 3 5 2 1 1 1 6 1 6 2 1 3 6 4 5 1 4 1 2 2 1 4 3 3 2 2 1 3 2 1 3 2 2 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 2 1 2 1 2 4 4 3 2 1 3 4 2 1 3 4 4 3 1 1 1 1 1 1 1 6 5 1 6 2 5 4 3 1 6 2 4 3 1 4 1 1 1 1 1 1 6 5 3 3 6 1 4 5 2 3 6 1 4 2 3 3 4 4 3 4 3 4 ...
output:
YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES NO YES YES YES YES NO YES YES YES YES YES YES YES YES YES YES NO NO NO YES YES NO 2 3 1 3 3 2 3 2 1 3 3 YES YES YES YES YES YES YES YES YES YES YES YES YES NO YES YES YES YES YES YES NO YES YES YES YES YES YES...
result:
wrong answer 45th lines differ - expected: 'NO', found: '2 3 1 '