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Submission #170073

# Submission time Handle Problem Language Result Execution time Memory
170073 2019-12-24T01:25:02 Z gs18103 Examination (JOI19_examination) C++14
100 / 100
 727 ms 28580 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define eb emplace_back
#define em emplace
#define all(v) v.begin(), v.end()

using namespace std;
typedef long long ll;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;

const int MAX = 101010;
const int INF = (1 << 30) - 1;
const ll LINF = 1LL << 60;

int ans[MAX], n, q;
pii arr[MAX];
vector <int> S, T[MAX], tree[MAX];
struct Query {
    int a, b, c, idx;
} query[MAX];

void update(int x, int y, int val) {
    x = upper_bound(all(S), x) - S.begin();
    while(x <= n) {
        int temp = upper_bound(all(T[x]), y) - T[x].begin();
        while(temp <= T[x].size()) {
            tree[x][temp] += val;
            temp += (temp & -temp);
        }
        x += (x & -x);
    }
}

int cal(int x, int y) {
    x = upper_bound(all(S), x) - S.begin();
    int ret = 0;
    while(x > 0) {
        int temp = upper_bound(all(T[x]), y) - T[x].begin();
        while(temp > 0) {
            ret += tree[x][temp];
            temp -= (temp & -temp);
        }
        x -= (x & -x);
    }
    return ret;
}

int main () {
    ios::sync_with_stdio(false); cin.tie(nullptr);

    cin >> n >> q;
    for(int i = 1; i <= n; i++) {
        cin >> arr[i].fi >> arr[i].se;
        S.eb(arr[i].fi);
    }
    sort(all(S));
    for(int i = 1; i <= n; i++) {
        int temp = upper_bound(all(S), arr[i].fi) - S.begin();
        while(temp <= n) {
            T[temp].eb(arr[i].se);
            temp += (temp & -temp);
        }
    }
    for(int i = 1; i <= n; i++) {
        tree[i].resize(T[i].size()+10);
        sort(all(T[i]));
    }
    sort(arr+1, arr+n+1, [](pii a, pii b) {
        return a.fi + a.se > b.fi + b.se;
    });
    
    for(int i = 1; i <= q; i++) {
        cin >> query[i].a >> query[i].b >> query[i].c;
        query[i].idx = i;
    }
    sort(query+1, query+q+1, [](Query X, Query Y) {
        return X.c > Y.c;
    });
    int idx = 1;
    for(int i = 1; i <= q; i++) {
        while(idx <= n && arr[idx].fi + arr[idx].se >= query[i].c) {
            update(arr[idx].fi, arr[idx].se, 1);
            idx++;
        }
        ans[query[i].idx] = cal(1000000000, 1000000000) - cal(1000000000, query[i].b-1) - cal(query[i].a-1, 1000000000) + cal(query[i].a-1, query[i].b-1);
    }
    for(int i = 1; i <= q; i++) {
        cout << ans[i] << '\n';
    }
}

Compilation message

examination.cpp: In function 'void update(int, int, int)':
examination.cpp:28:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         while(temp <= T[x].size()) {
               ~~~~~^~~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5112 KB Output is correct
2 Correct 6 ms 5112 KB Output is correct
3 Correct 6 ms 5112 KB Output is correct
4 Correct 6 ms 5112 KB Output is correct
5 Correct 6 ms 5112 KB Output is correct
6 Correct 6 ms 5112 KB Output is correct
7 Correct 16 ms 5752 KB Output is correct
8 Correct 16 ms 5752 KB Output is correct
9 Correct 16 ms 5752 KB Output is correct
10 Correct 14 ms 5624 KB Output is correct
11 Correct 14 ms 5652 KB Output is correct
12 Correct 13 ms 5500 KB Output is correct
13 Correct 16 ms 5752 KB Output is correct
14 Correct 16 ms 5752 KB Output is correct
15 Correct 17 ms 5752 KB Output is correct
16 Correct 10 ms 5496 KB Output is correct
17 Correct 13 ms 5752 KB Output is correct
18 Correct 9 ms 5500 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 641 ms 23360 KB Output is correct
2 Correct 640 ms 25904 KB Output is correct
3 Correct 641 ms 25820 KB Output is correct
4 Correct 544 ms 25052 KB Output is correct
5 Correct 367 ms 23152 KB Output is correct
6 Correct 228 ms 22388 KB Output is correct
7 Correct 549 ms 25644 KB Output is correct
8 Correct 594 ms 25716 KB Output is correct
9 Correct 562 ms 25476 KB Output is correct
10 Correct 150 ms 15832 KB Output is correct
11 Correct 369 ms 24788 KB Output is correct
12 Correct 108 ms 14964 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 641 ms 23360 KB Output is correct
2 Correct 640 ms 25904 KB Output is correct
3 Correct 641 ms 25820 KB Output is correct
4 Correct 544 ms 25052 KB Output is correct
5 Correct 367 ms 23152 KB Output is correct
6 Correct 228 ms 22388 KB Output is correct
7 Correct 549 ms 25644 KB Output is correct
8 Correct 594 ms 25716 KB Output is correct
9 Correct 562 ms 25476 KB Output is correct
10 Correct 150 ms 15832 KB Output is correct
11 Correct 369 ms 24788 KB Output is correct
12 Correct 108 ms 14964 KB Output is correct
13 Correct 684 ms 26168 KB Output is correct
14 Correct 665 ms 26100 KB Output is correct
15 Correct 653 ms 25844 KB Output is correct
16 Correct 511 ms 25388 KB Output is correct
17 Correct 390 ms 22644 KB Output is correct
18 Correct 238 ms 22060 KB Output is correct
19 Correct 727 ms 26228 KB Output is correct
20 Correct 682 ms 26100 KB Output is correct
21 Correct 655 ms 26068 KB Output is correct
22 Correct 152 ms 15868 KB Output is correct
23 Correct 368 ms 24676 KB Output is correct
24 Correct 108 ms 15100 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5112 KB Output is correct
2 Correct 6 ms 5112 KB Output is correct
3 Correct 6 ms 5112 KB Output is correct
4 Correct 6 ms 5112 KB Output is correct
5 Correct 6 ms 5112 KB Output is correct
6 Correct 6 ms 5112 KB Output is correct
7 Correct 16 ms 5752 KB Output is correct
8 Correct 16 ms 5752 KB Output is correct
9 Correct 16 ms 5752 KB Output is correct
10 Correct 14 ms 5624 KB Output is correct
11 Correct 14 ms 5652 KB Output is correct
12 Correct 13 ms 5500 KB Output is correct
13 Correct 16 ms 5752 KB Output is correct
14 Correct 16 ms 5752 KB Output is correct
15 Correct 17 ms 5752 KB Output is correct
16 Correct 10 ms 5496 KB Output is correct
17 Correct 13 ms 5752 KB Output is correct
18 Correct 9 ms 5500 KB Output is correct
19 Correct 641 ms 23360 KB Output is correct
20 Correct 640 ms 25904 KB Output is correct
21 Correct 641 ms 25820 KB Output is correct
22 Correct 544 ms 25052 KB Output is correct
23 Correct 367 ms 23152 KB Output is correct
24 Correct 228 ms 22388 KB Output is correct
25 Correct 549 ms 25644 KB Output is correct
26 Correct 594 ms 25716 KB Output is correct
27 Correct 562 ms 25476 KB Output is correct
28 Correct 150 ms 15832 KB Output is correct
29 Correct 369 ms 24788 KB Output is correct
30 Correct 108 ms 14964 KB Output is correct
31 Correct 684 ms 26168 KB Output is correct
32 Correct 665 ms 26100 KB Output is correct
33 Correct 653 ms 25844 KB Output is correct
34 Correct 511 ms 25388 KB Output is correct
35 Correct 390 ms 22644 KB Output is correct
36 Correct 238 ms 22060 KB Output is correct
37 Correct 727 ms 26228 KB Output is correct
38 Correct 682 ms 26100 KB Output is correct
39 Correct 655 ms 26068 KB Output is correct
40 Correct 152 ms 15868 KB Output is correct
41 Correct 368 ms 24676 KB Output is correct
42 Correct 108 ms 15100 KB Output is correct
43 Correct 676 ms 28416 KB Output is correct
44 Correct 691 ms 28580 KB Output is correct
45 Correct 665 ms 28404 KB Output is correct
46 Correct 512 ms 26996 KB Output is correct
47 Correct 395 ms 24132 KB Output is correct
48 Correct 233 ms 22048 KB Output is correct
49 Correct 588 ms 28528 KB Output is correct
50 Correct 638 ms 28320 KB Output is correct
51 Correct 538 ms 28148 KB Output is correct
52 Correct 177 ms 17460 KB Output is correct
53 Correct 364 ms 26024 KB Output is correct