Submission #475772

#	Time	Username	Problem	Language	Result	Execution time	Memory
475772		NhatMinh0208	Segments (IZhO18_segments)	C++14	7 / 100	1686 ms	51180 KiB

segments

#ifndef CPL_TEMPLATE
#define CPL_TEMPLATE
/*
	Normie's Template v2.5
	Changes:
    Added warning against using pragmas on USACO.
*/
// Standard library in one include.
#include <bits/stdc++.h>
using namespace std;
 
// ordered_set library.
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set(el) tree<el,null_type,less<el>,rb_tree_tag,tree_order_statistics_node_update>
 
// AtCoder library. (Comment out these two lines if you're not submitting in AtCoder.) (Or if you want to use it in other judges, run expander.py first.)
//#include <atcoder/all>
//using namespace atcoder;

//Pragmas (Comment out these three lines if you're submitting in szkopul or USACO.)
#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("Ofast,unroll-loops,tree-vectorize")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
 
//File I/O.
#define FILE_IN "cseq.inp"
#define FILE_OUT "cseq.out"
#define ofile freopen(FILE_IN,"r",stdin);freopen(FILE_OUT,"w",stdout)
 
//Fast I/O.
#define fio ios::sync_with_stdio(0);cin.tie(0)
#define nfio cin.tie(0)
#define endl "\n"
 
//Order checking.
#define ord(a,b,c) ((a>=b)and(b>=c))
 
//min/max redefines, so i dont have to resolve annoying compile errors.
#define min(a,b) (((a)<(b))?(a):(b))
#define max(a,b) (((a)>(b))?(a):(b))

// Fast min/max assigns to use with AVX.
// Requires g++ 9.2.0.
template<typename T>
__attribute__((always_inline)) void chkmin(T& a, const T& b) {
    a=(a<b)?a:b;
}

template<typename T>
__attribute__((always_inline)) void chkmax(T& a, const T& b) {
    a=(a>b)?a:b;
}
 
//Constants.
#define MOD (ll(998244353))
#define MAX 300001
#define mag 500
const long double PI=3.14159265358979;
 
//Pairs and 3-pairs.
#define p1 first
#define p2 second.first
#define p3 second.second
#define fi first
#define se second
#define pii(element_type) pair<element_type,element_type>
#define piii(element_type) pair<element_type,pii(element_type)>
 
//Quick power of 2.
#define pow2(x) (ll(1)<<x)
 
//Short for-loops.
#define ff(i,__,___) for(int i=__;i<=___;i++)
#define rr(i,__,___) for(int i=__;i>=___;i--)
 
//Typedefs.
#define bi BigInt
typedef long long ll;
typedef long double ld;
typedef short sh;

// Binpow and stuff
ll BOW(ll a, ll x, ll p)
{
	if (!x) return 1;
	ll res=BOW(a,x/2,p);
	res*=res;
	res%=p;
	if (x%2) res*=a;
	return res%p;
}
ll INV(ll a, ll p)
{
	return BOW(a,p-2,p);
}
//---------END-------//
#endif
struct node
{
    int l=0,r=0,val=0;
    node(int _l=0, int _r=0, int _val=0)
    {
        l=_l;
        r=_r;
        val=_val;
    }
};
struct seg
{
    vector<node> tre[80001];
    void reset(int c, int l, int r)
    {
        tre[c].clear();
        tre[c].emplace_back(0,0,0);
        if (l<r)
        {
            int mid=(l+r)/2;
            reset((c<<1),l,mid);
            reset((c<<1)+1,mid+1,r);
        }
    }
    int upd(int c, int l, int r, int t, int x)
    {
        if ((l<=t)and(t<=r))
        {
            node prv=tre[c][tre[c].size()-1];
            if (l==r)
            {
                prv.l=0;
                prv.r=0;
                prv.val=x;
            }
            else
            {
                int mid=(l+r)/2;
                prv.l=upd((c<<1),l,mid,t,x);
                prv.r=upd((c<<1)+1,mid+1,r,t,x);
                prv.val=tre[(c<<1)][prv.l].val+tre[(c<<1)+1][prv.r].val;
            }

                tre[c].push_back(prv);
        }
        return tre[c].size()-1;
    }
    int get(int c, int ind, int l, int r, int tl, int tr)
    {
        if ((tl>r)or(tr<l)) return 0;
        if ((l>=tl)and(r<=tr))
        {
            return tre[c][ind].val;
        }
        else
        {
            int mid=(l+r)/2;
            int a=get((c<<1),tre[c][ind].l,l,mid,tl,tr);
            int b=get((c<<1)+1,tre[c][ind].r,mid+1,r,tl,tr);
            return (a+b);
        }
    }
};

seg str,stl;

vector<pair<ll,int>> vr,vl,vc;

vector<int> vec;
ll n,m,i,j,k,t,x,t1,u,v,a,b,u1,u2,u3,u4;
int res;
int l[200001],r[200001];
int pl[200001];
int pr[200001];
int active[200001];
int main()
{
	fio;
    cin>>t>>x;
    for (t1=0;t1<t;t1++) {
        cin>>u;
        if (u==1) {
            cin>>a>>b;
            a^=(x*res);
            b^=(x*res);
            if (a>b) swap(a,b);
            n++;
            active[n]=1;
            l[n]=a;
            r[n]=b;
            vec.push_back(n);
        } else if (u==2) {
            cin>>v;
            active[v]=0;
            vec.push_back(-v);
        } else {
            cin>>a>>b>>v;
            a^=(x*res);
            b^=(x*res);
            if (a>b) swap(a,b);
            res=0;
            if (b-a+1<v) {
            } else {
                for (auto g : vec) {
                    if (r[abs(g)]-l[abs(g)]+1>=v && r[abs(g)]>=a+v-1 && l[abs(g)]<=b-v+1) {
                        if (g>0) res++; else res--;
                    }
                }
                if (m) {
                    auto it=lower_bound(vc.begin(),vc.end(),pair<ll,int>(v,-1));
                    res+=vc.end()-it;
                    auto it2=lower_bound(vr.begin(),vr.end(),pair<ll,int>(a+v-2,1e9));
                    if (it2!=vr.begin()) {
                        res-=str.get(1,(vc.end()-it),1,m,1,(it2-vr.begin()));
                    }
                    auto it3=lower_bound(vl.begin(),vl.end(),pair<ll,int>(b-v+2,-1));
                    if (it3!=vl.end()) {
                        res-=stl.get(1,(vc.end()-it),1,m,(it3-vl.begin()+1),m);
                    }
                }
            }
            cout<<res<<endl;
        }
        if (t1%mag==mag-1) {
            vec.clear();
            vl.clear();
            vr.clear();
            vc.clear();
            for (i=1;i<=n;i++) if (active[i]) {
                vr.push_back({r[i],i});
                vl.push_back({l[i],i});
                vc.push_back({r[i]-l[i]+1,i});
            }
            m=vl.size();
            str.reset(1,1,m);
            stl.reset(1,1,m);
            sort(vl.begin(),vl.end());
            sort(vr.begin(),vr.end());
            sort(vc.begin(),vc.end());
            for (i=0;i<m;i++) pl[vl[i].se]=i+1;
            for (i=0;i<m;i++) pr[vr[i].se]=i+1;
            for (i=m-1;i>=0;i--) {
                str.upd(1,1,m,pr[vc[i].se],1);
            }
            for (i=m-1;i>=0;i--) {
                stl.upd(1,1,m,pl[vc[i].se],1);
            }
        }
    }    
}
// N;

Compilation message (stderr)

segments.cpp:23: warning: ignoring '#pragma comment ' [-Wunknown-pragmas]
   23 | #pragma comment(linker, "/stack:200000000")
      |

• Subtask 1: 7 / 7
• Subtask 2: 0 / 15
• Subtask 3: 0 / 16
• Subtask 4: 0 / 17
• Subtask 5: 0 / 20
• Subtask 6: 0 / 25