oj.uz

Submission #306699

# Submission time Handle Problem Language Result Execution time Memory
306699 2020-09-26T07:35:57 Z jainbot27 Examination (JOI19_examination) C++17
100 / 100
 2724 ms 158712 KB 
#include <bits/stdc++.h>
using namespace std;

#define f first
#define s second
#define pb push_back
#define ar array
#define all(x) x.begin(), x.end()
#define siz(x) (int)x.size()

#define FOR(x, y, z) for(int x = (y); x < (z); x++)
#define ROF(x, z, y) for(int x = (y-1); x >= (z); x--)
#define F0R(x, z) FOR(x, 0, z)
#define R0F(x, z) ROF(x, 0, z)
#define trav(x, y) for(auto&x:y)

using ll = long long;
using vi = vector<int>;
using vl = vector<long long>;
using pii = pair<int, int>;
using vpii = vector<pair<int, int>>;

template<class T> inline bool ckmin(T&a, T b) {return b < a ? a = b, 1 : 0;}
template<class T> inline bool ckmax(T&a, T b) {return b > a ? a = b, 1 : 0;}
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const char nl = '\n';
const int mxN = 1e5 + 10;
const int MOD = 1e9 + 7;
const long long infLL = 1e18;
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
#define ordered_set tree<pii, null_type,less<pii>, rb_tree_tag,tree_order_statistics_node_update>
using node = ordered_set;
int n, ptr = 0, q, gl, ctr, ans[mxN]; ar<int, 3> v[mxN], w[mxN]; ar<int, 4> quer[mxN];
ordered_set st[mxN*4];
int qry(int l, int r, int lx = 0, int rx = n-1, int node = 0){
    if(l <= lx && r >= rx){
        // cout << gl << "{";
        // trav(x, st[node]) cout << x.f << " ";
        // cout << "}\n";
        return siz(st[node]) - st[node].order_of_key({gl,-1});
    }
    if(lx > r || rx < l){
        return 0;
    }
    int m = (lx + rx)/2;
    return qry(l, r, lx, m, node*2+1) + qry(l, r, m+1, rx, node*2+2);
}
void update(int pos, int nxt, int lx = 0, int rx = n-1, int x = 0){
    st[x].insert({nxt, ctr});
    if(lx == rx) return;
    int m = (lx + rx)/2;
    if(pos <= m){
        update(pos, nxt, lx, m, x*2+1);
    }
    else{
        update(pos, nxt, m+1, rx, x*2+2);
    }

}
int32_t main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> n >> q;
    F0R(i, n){
        cin >> v[i][0] >> v[i][1];
        v[i][2] = v[i][0] + v[i][1];
        w[i] = v[i];
    }
    sort(v, v+n);
    sort(w, w+n, [](ar<int, 3> e1, ar<int, 3> e2){
        return e1[1] > e2[1];
    });
    F0R(i, q){
        cin >> quer[i][0] >> quer[i][1] >> quer[i][2];
        quer[i][3] = i;
    }
    sort(quer, quer+q, [](ar<int, 4> e1, ar<int, 4> e2){
        return e1[1] > e2[1];
    });
    F0R(i, q){
        while(ptr < n && w[ptr][1] >= quer[i][1]){
            int x = lower_bound(v, v+n,(ar<int,3>) {w[ptr][0], -1, -1}) - v;
            // cout << w[ptr][2] << nl;
            update(x, w[ptr][2]);
            ctr++; ptr++;
        } 
        gl = quer[i][2];
        ans[quer[i][3]] = qry(lower_bound(v, v+n, (ar<int, 3>){quer[i][0], -1, -1}) - v, n-1);
        // cout << ptr << " " << quer[i][2] << " " << quer[i][3] << " " << ans[quer[i][3]] << " " <<  lower_bound(v, v+n, (ar<int, 3>){quer[i][0], -1, -1}) - v << nl;
    }
    F0R(i, q){
        cout << ans[i] << nl;
    }
    return 0;
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 37884 KB Output is correct
2 Correct 38 ms 37916 KB Output is correct
3 Correct 39 ms 37880 KB Output is correct
4 Correct 38 ms 37888 KB Output is correct
5 Correct 39 ms 37888 KB Output is correct
6 Correct 44 ms 38008 KB Output is correct
7 Correct 55 ms 40440 KB Output is correct
8 Correct 55 ms 40440 KB Output is correct
9 Correct 55 ms 40568 KB Output is correct
10 Correct 54 ms 40440 KB Output is correct
11 Correct 58 ms 40440 KB Output is correct
12 Correct 53 ms 40440 KB Output is correct
13 Correct 55 ms 40440 KB Output is correct
14 Correct 56 ms 40440 KB Output is correct
15 Correct 54 ms 40440 KB Output is correct
16 Correct 57 ms 40568 KB Output is correct
17 Correct 53 ms 40440 KB Output is correct
18 Correct 56 ms 40568 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2267 ms 153720 KB Output is correct
2 Correct 2246 ms 156320 KB Output is correct
3 Correct 2242 ms 156296 KB Output is correct
4 Correct 1625 ms 155512 KB Output is correct
5 Correct 1264 ms 155768 KB Output is correct
6 Correct 1196 ms 155512 KB Output is correct
7 Correct 2213 ms 156192 KB Output is correct
8 Correct 2354 ms 156408 KB Output is correct
9 Correct 2157 ms 156152 KB Output is correct
10 Correct 1146 ms 157176 KB Output is correct
11 Correct 1513 ms 155164 KB Output is correct
12 Correct 1839 ms 156396 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2267 ms 153720 KB Output is correct
2 Correct 2246 ms 156320 KB Output is correct
3 Correct 2242 ms 156296 KB Output is correct
4 Correct 1625 ms 155512 KB Output is correct
5 Correct 1264 ms 155768 KB Output is correct
6 Correct 1196 ms 155512 KB Output is correct
7 Correct 2213 ms 156192 KB Output is correct
8 Correct 2354 ms 156408 KB Output is correct
9 Correct 2157 ms 156152 KB Output is correct
10 Correct 1146 ms 157176 KB Output is correct
11 Correct 1513 ms 155164 KB Output is correct
12 Correct 1839 ms 156396 KB Output is correct
13 Correct 2397 ms 156792 KB Output is correct
14 Correct 2353 ms 156664 KB Output is correct
15 Correct 2283 ms 156412 KB Output is correct
16 Correct 1685 ms 155768 KB Output is correct
17 Correct 1439 ms 155512 KB Output is correct
18 Correct 1216 ms 154364 KB Output is correct
19 Correct 2417 ms 156664 KB Output is correct
20 Correct 2388 ms 156920 KB Output is correct
21 Correct 2512 ms 156920 KB Output is correct
22 Correct 1139 ms 157048 KB Output is correct
23 Correct 1490 ms 155256 KB Output is correct
24 Correct 1845 ms 156408 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 37884 KB Output is correct
2 Correct 38 ms 37916 KB Output is correct
3 Correct 39 ms 37880 KB Output is correct
4 Correct 38 ms 37888 KB Output is correct
5 Correct 39 ms 37888 KB Output is correct
6 Correct 44 ms 38008 KB Output is correct
7 Correct 55 ms 40440 KB Output is correct
8 Correct 55 ms 40440 KB Output is correct
9 Correct 55 ms 40568 KB Output is correct
10 Correct 54 ms 40440 KB Output is correct
11 Correct 58 ms 40440 KB Output is correct
12 Correct 53 ms 40440 KB Output is correct
13 Correct 55 ms 40440 KB Output is correct
14 Correct 56 ms 40440 KB Output is correct
15 Correct 54 ms 40440 KB Output is correct
16 Correct 57 ms 40568 KB Output is correct
17 Correct 53 ms 40440 KB Output is correct
18 Correct 56 ms 40568 KB Output is correct
19 Correct 2267 ms 153720 KB Output is correct
20 Correct 2246 ms 156320 KB Output is correct
21 Correct 2242 ms 156296 KB Output is correct
22 Correct 1625 ms 155512 KB Output is correct
23 Correct 1264 ms 155768 KB Output is correct
24 Correct 1196 ms 155512 KB Output is correct
25 Correct 2213 ms 156192 KB Output is correct
26 Correct 2354 ms 156408 KB Output is correct
27 Correct 2157 ms 156152 KB Output is correct
28 Correct 1146 ms 157176 KB Output is correct
29 Correct 1513 ms 155164 KB Output is correct
30 Correct 1839 ms 156396 KB Output is correct
31 Correct 2397 ms 156792 KB Output is correct
32 Correct 2353 ms 156664 KB Output is correct
33 Correct 2283 ms 156412 KB Output is correct
34 Correct 1685 ms 155768 KB Output is correct
35 Correct 1439 ms 155512 KB Output is correct
36 Correct 1216 ms 154364 KB Output is correct
37 Correct 2417 ms 156664 KB Output is correct
38 Correct 2388 ms 156920 KB Output is correct
39 Correct 2512 ms 156920 KB Output is correct
40 Correct 1139 ms 157048 KB Output is correct
41 Correct 1490 ms 155256 KB Output is correct
42 Correct 1845 ms 156408 KB Output is correct
43 Correct 2423 ms 158668 KB Output is correct
44 Correct 2416 ms 158712 KB Output is correct
45 Correct 2338 ms 158628 KB Output is correct
46 Correct 1677 ms 157176 KB Output is correct
47 Correct 1451 ms 157304 KB Output is correct
48 Correct 1238 ms 154872 KB Output is correct
49 Correct 2378 ms 158296 KB Output is correct
50 Correct 2724 ms 158424 KB Output is correct
51 Correct 2635 ms 158396 KB Output is correct
52 Correct 1817 ms 158712 KB Output is correct
53 Correct 1511 ms 156024 KB Output is correct