# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|
336223 | | YJU | Rope (JOI17_rope) | C++14 | | 2585 ms | 168808 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
#pragma GCC optimize("unroll-loops,no-stack-protector")
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;
const ll MOD=1e9+7;
const ll MOD2=998244353;
const ll N=1e6+5;
const ll K=350;
const ld pi=acos(-1);
const ll INF=(1LL<<60);
#define SQ(i) ((i)*(i))
#define REP(i,n) for(ll i=0;i<n;i++)
#define REP1(i,n) for(ll i=1;i<=n;i++)
#define pb push_back
#define mp make_pair
#define X first
#define Y second
#define setp setprecision
#define lwb lower_bound
#define SZ(_a) (ll)_a.size()
ll u[N],n,m,cnt[N],ans[N],dp[N],s[N];
vector<pll> v[2][N];
ll seg[2][4*N];
void ins(ll sid,ll id,ll l,ll r,ll to,ll d){
if(l==r-1){seg[sid][id]+=d;return ;}
ll mid=(l+r)/2;
if(to<mid){
ins(sid,id*2,l,mid,to,d);
}else{
ins(sid,id*2+1,mid,r,to,d);
}
seg[sid][id]=max(seg[sid][id*2],seg[sid][id*2+1]);
}
void add(ll sid,pll A){
if(A.X==A.Y){
v[sid][A.X].pb(A);
}else{
v[sid][A.X].pb(A);
v[sid][A.Y].pb(A);
}
if(A.X)ins(sid,1,1,m+1,A.X,1);
if(A.Y)ins(sid,1,1,m+1,A.Y,1);
}
int main(){
ios_base::sync_with_stdio(0);cin.tie(0);
cin>>n>>m;
REP1(i,n){
cin>>u[i];
++cnt[u[i]];
pll tmp=mp(u[i-1],u[i]);
add(i&1,tmp);
if(i==n)add((i+1)&1,mp(u[i],u[i+1]));
}
REP1(i,m){
for(auto j:v[0][i]){
if(j.X)ins(0,1,1,m+1,j.X,-1);
if(j.Y)ins(0,1,1,m+1,j.Y,-1);
}
for(auto j:v[1][i]){
if(j.X)ins(1,1,1,m+1,j.X,-1);
if(j.Y)ins(1,1,1,m+1,j.Y,-1);
}
ans[i]=n-cnt[i]-max(0LL,max(seg[0][1],seg[1][1]));
for(auto j:v[0][i]){
if(j.X)ins(0,1,1,m+1,j.X,1);
if(j.Y)ins(0,1,1,m+1,j.Y,1);
}
for(auto j:v[1][i]){
if(j.X)ins(1,1,1,m+1,j.X,1);
if(j.Y)ins(1,1,1,m+1,j.Y,1);
}
}
REP1(i,m)cout<<ans[i]<<"\n";
return 0;
}
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