Submission #1031734

#	Time	Username	Problem	Language	Result	Execution time	Memory
1031734		GrindMachine	Segments (IZhO18_segments)	C++17	23 / 100	5090 ms	4344 KiB

segments

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

template<typename T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long int ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL)
#define pb push_back
#define endl '\n'
#define sz(a) (int)a.size()
#define setbits(x) __builtin_popcountll(x)
#define ff first
#define ss second
#define conts continue
#define ceil2(x,y) ((x+y-1)/(y))
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define yes cout << "Yes" << endl
#define no cout << "No" << endl

#define rep(i,n) for(int i = 0; i < n; ++i)
#define rep1(i,n) for(int i = 1; i <= n; ++i)
#define rev(i,s,e) for(int i = s; i >= e; --i)
#define trav(i,a) for(auto &i : a)

template<typename T>
void amin(T &a, T b) {
    a = min(a,b);
}

template<typename T>
void amax(T &a, T b) {
    a = max(a,b);
}

#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif

/*

refs:
other solutions

*/

const int MOD = 1e9 + 7;
const int N = 1e5 + 5;
const int inf1 = int(1e9) + 5;
const ll inf2 = ll(1e18) + 5;

struct DS{
    vector<pii> a;
    void insert(int l, int r){
        a.pb({l,r});
    }
    int query(int l1, int r1, int k){
        if(r1-l1 < k) return 0;
        int ans = 0;
        for(auto [l2,r2] : a){
            if(r2-l2 < k) conts;
            ans++;
            if(r2 < l1+k) ans--;
            if(l2 > r1-k) ans--;
        }
        return ans;
    }
};

void solve(int test_case)
{
    int q,c; cin >> q >> c;
    
    DS ds1,ds2;
    vector<pii> a;
    a.pb({0,0});

    int last_ans = 0;

    while(q--){
        int t; cin >> t;
        if(t == 1){
            int l,r; cin >> l >> r;
            l ^= c*last_ans, r ^= c*last_ans;
            if(l > r) swap(l,r);
            ds1.insert(l,r);
            a.pb({l,r});
        }
        else if(t == 2){
            int id; cin >> id;
            auto [l,r] = a[id];
            ds2.insert(l,r);
        }
        else{
            int l,r,k; cin >> l >> r >> k;
            l ^= c*last_ans, r ^= c*last_ans;
            if(l > r) swap(l,r);
            k--;
            int ans = ds1.query(l,r,k)-ds2.query(l,r,k);
            cout << ans << endl;
            last_ans = ans;
        }
    }
}

int main()
{
    fastio;

    int t = 1;
    // cin >> t;

    rep1(i, t) {
        solve(i);
    }

    return 0;
}

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