oj.uz

Submission #1078656

# Submission time Handle Problem Language Result Execution time Memory
1078656 2024-08-28T03:15:52 Z doducanh Examination (JOI19_examination) C++14
100 / 100
 2192 ms 174064 KB 
#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx")

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

#define ordered_set tree<pair<int,int>, null_type,less<pair<int,int> >, rb_tree_tag,tree_order_statistics_node_update>

#define forw(i,a,b) for(ll i=a;i<=b;i++)
#define forb(i,a,b) for(ll i=a;i>=b;i--)
#define fi first
#define se second
#define pb push_back
#define pu push
#define all(a) a.begin(),a.end()
#define getbit(mask,i) ((mask>>(i))&1)
#define minimize(a,b) (a)=min((a),(b))
typedef long long int ll;
typedef pair<int,int> pii;
typedef pair<ll,ll>  pll;
const ll maxN=2e5+5;
const ll mod=1e9+9;
const ll oo=1e18+1;
const int tx[4]={-1,1,0,0};
const int ty[4]={0,0,-1,1};
const int len=350;
struct fenwick
{
    vector <int> fen;
    int n;
    fenwick(int _n=1e5)
    {
        n=_n;
        fen.assign(n+5,0);
    }
    void update(int pos)
    {
        for(;pos>0;pos-=pos&-pos) fen[pos]++;
        return;
    }
    int get(int pos)
    {
        if (!pos) return 0;
        int ans=0;
        for(;pos<=n;pos+=pos&-pos) ans+=fen[pos];
        return ans;
    }
}fen[len+3];
struct dataa
{
    int x,y,z,id;
};

dataa a[maxN],query[maxN];
ordered_set save[maxN];
int n,q,ans[maxN];
vector <int> pend_x,pend_y;

bool cmp(dataa &a, dataa &b)
{
    return a.z>b.z;
}
void solve()
{
    cin>>n>>q;
    forw(i,1,n)
    {
        cin>>a[i].x>>a[i].y;
        a[i].z=a[i].x+a[i].y;
        pend_x.pb(a[i].x);
        pend_y.pb(a[i].y);
    }
    sort(a+1,a+1+n,cmp);
    sort(all(pend_x)); pend_x.resize(unique(all(pend_x))-pend_x.begin());
    sort(all(pend_y)); pend_y.resize(unique(all(pend_y))-pend_y.begin());
    forw(i,1,q)
    {
        cin>>query[i].x>>query[i].y>>query[i].z;
        query[i].id=i;
    }
    sort(query+1,query+1+q,cmp);
    int idx=1;
    forw(i,1,n)
    {
        int pos1=lower_bound(all(pend_x),a[i].x)-pend_x.begin()+1;
        int pos2=lower_bound(all(pend_y),a[i].y)-pend_y.begin()+1;
        // update ele
        save[pos1].insert({pos2,i});
        // update block
        pos1=(pos1-1)/len;
        fen[pos1].update(pos2);

        if (i<n && a[i].z==a[i+1].z) continue;

        while (idx<=q && (i==n || a[i+1].z<query[idx].z))
        {
            if (a[i].z<query[idx].z)
            {
                idx++;
                continue;
            }

            int cnt=0;
            pos1=lower_bound(all(pend_x),query[idx].x)-pend_x.begin()+1;
            pos2=lower_bound(all(pend_y),query[idx].y)-pend_y.begin()+1;
            int L=(pos1-1)/len;
            int R=(pend_x.size()-1)/len;
            // get block
            forw(block,L+1,R)
                cnt+=fen[block].get(pos2);
            // get ele
            forw(ele,pos1,(L+1)*len)
                cnt+=save[ele].size()-save[ele].order_of_key({pos2,0});

            ans[query[idx].id]=cnt;
            idx++;
        }
    }
    forw(i,1,q) cout<<ans[i]<<"\n";
    return;
}
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    //freopen("bruh.inp","r",stdin);
    //freopen("bruh.out","w",stdout);
    int t=1; //cin>>t;
    while (t--) solve();
    return 0;
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 69 ms 157784 KB Output is correct
2 Correct 71 ms 157824 KB Output is correct
3 Correct 70 ms 157776 KB Output is correct
4 Correct 69 ms 157780 KB Output is correct
5 Correct 73 ms 157684 KB Output is correct
6 Correct 70 ms 157776 KB Output is correct
7 Correct 73 ms 158032 KB Output is correct
8 Correct 74 ms 158120 KB Output is correct
9 Correct 78 ms 158032 KB Output is correct
10 Correct 83 ms 158096 KB Output is correct
11 Correct 78 ms 158100 KB Output is correct
12 Correct 72 ms 158036 KB Output is correct
13 Correct 81 ms 158032 KB Output is correct
14 Correct 77 ms 158140 KB Output is correct
15 Correct 75 ms 158032 KB Output is correct
16 Correct 78 ms 158156 KB Output is correct
17 Correct 89 ms 158156 KB Output is correct
18 Correct 77 ms 158036 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1118 ms 168872 KB Output is correct
2 Correct 1122 ms 169056 KB Output is correct
3 Correct 1164 ms 168920 KB Output is correct
4 Correct 755 ms 168904 KB Output is correct
5 Correct 330 ms 168904 KB Output is correct
6 Correct 248 ms 168900 KB Output is correct
7 Correct 1455 ms 168952 KB Output is correct
8 Correct 696 ms 168908 KB Output is correct
9 Correct 910 ms 168972 KB Output is correct
10 Correct 217 ms 168896 KB Output is correct
11 Correct 598 ms 168892 KB Output is correct
12 Correct 208 ms 168588 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1118 ms 168872 KB Output is correct
2 Correct 1122 ms 169056 KB Output is correct
3 Correct 1164 ms 168920 KB Output is correct
4 Correct 755 ms 168904 KB Output is correct
5 Correct 330 ms 168904 KB Output is correct
6 Correct 248 ms 168900 KB Output is correct
7 Correct 1455 ms 168952 KB Output is correct
8 Correct 696 ms 168908 KB Output is correct
9 Correct 910 ms 168972 KB Output is correct
10 Correct 217 ms 168896 KB Output is correct
11 Correct 598 ms 168892 KB Output is correct
12 Correct 208 ms 168588 KB Output is correct
13 Correct 978 ms 168932 KB Output is correct
14 Correct 1107 ms 168848 KB Output is correct
15 Correct 1103 ms 168900 KB Output is correct
16 Correct 605 ms 168900 KB Output is correct
17 Correct 299 ms 168900 KB Output is correct
18 Correct 256 ms 168924 KB Output is correct
19 Correct 945 ms 169012 KB Output is correct
20 Correct 1022 ms 168952 KB Output is correct
21 Correct 814 ms 168904 KB Output is correct
22 Correct 215 ms 168648 KB Output is correct
23 Correct 589 ms 168644 KB Output is correct
24 Correct 213 ms 168648 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 69 ms 157784 KB Output is correct
2 Correct 71 ms 157824 KB Output is correct
3 Correct 70 ms 157776 KB Output is correct
4 Correct 69 ms 157780 KB Output is correct
5 Correct 73 ms 157684 KB Output is correct
6 Correct 70 ms 157776 KB Output is correct
7 Correct 73 ms 158032 KB Output is correct
8 Correct 74 ms 158120 KB Output is correct
9 Correct 78 ms 158032 KB Output is correct
10 Correct 83 ms 158096 KB Output is correct
11 Correct 78 ms 158100 KB Output is correct
12 Correct 72 ms 158036 KB Output is correct
13 Correct 81 ms 158032 KB Output is correct
14 Correct 77 ms 158140 KB Output is correct
15 Correct 75 ms 158032 KB Output is correct
16 Correct 78 ms 158156 KB Output is correct
17 Correct 89 ms 158156 KB Output is correct
18 Correct 77 ms 158036 KB Output is correct
19 Correct 1118 ms 168872 KB Output is correct
20 Correct 1122 ms 169056 KB Output is correct
21 Correct 1164 ms 168920 KB Output is correct
22 Correct 755 ms 168904 KB Output is correct
23 Correct 330 ms 168904 KB Output is correct
24 Correct 248 ms 168900 KB Output is correct
25 Correct 1455 ms 168952 KB Output is correct
26 Correct 696 ms 168908 KB Output is correct
27 Correct 910 ms 168972 KB Output is correct
28 Correct 217 ms 168896 KB Output is correct
29 Correct 598 ms 168892 KB Output is correct
30 Correct 208 ms 168588 KB Output is correct
31 Correct 978 ms 168932 KB Output is correct
32 Correct 1107 ms 168848 KB Output is correct
33 Correct 1103 ms 168900 KB Output is correct
34 Correct 605 ms 168900 KB Output is correct
35 Correct 299 ms 168900 KB Output is correct
36 Correct 256 ms 168924 KB Output is correct
37 Correct 945 ms 169012 KB Output is correct
38 Correct 1022 ms 168952 KB Output is correct
39 Correct 814 ms 168904 KB Output is correct
40 Correct 215 ms 168648 KB Output is correct
41 Correct 589 ms 168644 KB Output is correct
42 Correct 213 ms 168648 KB Output is correct
43 Correct 1349 ms 168812 KB Output is correct
44 Correct 1364 ms 173772 KB Output is correct
45 Correct 1402 ms 174064 KB Output is correct
46 Correct 834 ms 172144 KB Output is correct
47 Correct 305 ms 172132 KB Output is correct
48 Correct 184 ms 169928 KB Output is correct
49 Correct 2192 ms 173624 KB Output is correct
50 Correct 845 ms 173804 KB Output is correct
51 Correct 1256 ms 173512 KB Output is correct
52 Correct 278 ms 171976 KB Output is correct
53 Correct 904 ms 171212 KB Output is correct