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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 |
---|---|---|---|---|---|---|---|---|---|
#525027 | #5459. Goose, goose, DUCK? | solar_express# | WA | 4ms | 44576kb | C++14 | 2.1kb | 2024-08-20 11:49:13 | 2024-08-20 11:49:14 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
int n,k;
int o[1200000];
int pd[1200000];
int ch[1200000];
vector<int>vt[1200000];
long long ans=0;
int zan[1200000],ztop;
int tree[4000000],lazy[4000000];
int tp;
int pushup(int k){
int RE=0;
if(!lazy[k<<1])RE+=tree[k<<1];
if(!lazy[k<<1|1])RE+=tree[k<<1|1];
return RE;
}
void tree_init(int l,int r,int k,int x,int y){
if(l>y||r<x){tree[k]=lazy[k]=0;return ;}
if(l==r){tree[k]=1;lazy[k]=0;return ;}
int mid=(l+r)>>1;
tree_init(l,mid,k<<1,x,y);
tree_init(mid+1,r,k<<1|1,x,y);
tree[k]=pushup(k);
lazy[k]=0;
}
void add(int l,int r,int k,int x,int y,int v){
if(x<=l&&r<=y){lazy[k]+=v;return ;}
int mid=(l+r)>>1;
if(x<=mid)add(l,mid,k<<1,x,y,v);
if(y>mid)add(mid+1,r,k<<1|1,x,y,v);
tree[k]=pushup(k);
}
void init(int l,int r,int mid){
r=r;//No Warning "r"
tree_init(1,n,1,l,mid);
for(int i=1;i<=ztop;i++){
if(pd[zan[i]]>=k){
add(1,n,1,vt[zan[i]][k+1]+1,vt[zan[i]][k],1);
}
}
}
void update(int x){
if(pd[x]){
if(ch[x]+pd[x]>=k&&ch[x]<=k){
add(1,n,1,vt[x][k-ch[x]+1]+1,vt[x][k-ch[x]],-1);
}
ch[x]++;
if(ch[x]+pd[x]>=k&&ch[x]<=k){
add(1,n,1,vt[x][k-ch[x]+1]+1,vt[x][k-ch[x]],1);
}
return ;
}
else{
if(ch[x]==k)tp--;
ch[x]++;
if(ch[x]==k)tp++;
}
}
void sol(int l,int r){
if(l==r){if(k!=1)ans++;return ;}
if(l+1==r){
if(o[l]==o[r]){if(k!=1)ans+=2;if(k!=2)ans++;}
else if(k!=1)ans+=3;return ;
}
int mid=(l+r)>>1;
ztop=0;
vt[o[mid]].push_back(mid+1);
vt[o[mid]].push_back(mid);
pd[o[mid]]++;
zan[++ztop]=o[mid];ch[o[mid]]=0;
for(int i=mid-1;i>=l;i--){
if(!pd[o[i]]){
vt[o[i]].push_back(mid);
zan[++ztop]=o[i];
ch[o[i]]=0;
}
pd[o[i]]++;
vt[o[i]].push_back(i);
}
for(int i=1;i<=ztop;i++){
vt[zan[i]].push_back(l-1);
}
init(l,r,mid);
tp=0;
for(int i=mid+1;i<=r;i++){
update(o[i]);
if(tp)continue;
ans+=tree[1];
}
for(int i=l;i<=r;i++)pd[o[i]]=0,vt[o[i]].clear();
ztop=0;
sol(l,mid);sol(mid+1,r);
}
int main(){
cin>>n>>k;
for(int i=1;i<=n;i++)scanf("%d",&o[i]);
sol(1,n);
cout<<ans<<endl;
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 42548kb
input:
6 2 1 2 2 1 3 3
output:
10
result:
ok 1 number(s): "10"
Test #2:
score: 0
Accepted
time: 4ms
memory: 40500kb
input:
6 1 1 2 3 4 5 6
output:
0
result:
ok 1 number(s): "0"
Test #3:
score: -100
Wrong Answer
time: 4ms
memory: 44576kb
input:
100 10 142826 764475 142826 986320 764475 142826 142826 986320 764475 986320 764475 764475 764475 142826 142826 986320 764475 986320 764475 764475 142826 764475 142826 764475 986320 986320 764475 142826 764475 764475 142826 764475 764475 986320 142826 142826 142826 142826 764475 986320 986320 764475...
output:
4286
result:
wrong answer 1st numbers differ - expected: '4309', found: '4286'