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Submission #620190

# Submission time Handle Problem Language Result Execution time Memory
620190 2022-08-03T03:11:43 Z stevancv Examination (JOI19_examination) C++14
100 / 100
 546 ms 44072 KB 
#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int N = 6e5 + 2;
const int mod = 1e9 + 7;
struct fenwick {
    int bit[N];
    void Add(int x, int y) {
        for (; x < N; x += x & (-x)) bit[x] += y;
    }
    int Get(int x) {
        x -= 1;
        int ans = 0;
        for (; x > 0; x -= x & (-x)) ans += bit[x];
        return ans;
    }
}f1, f2;
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n, q;
    cin >> n >> q;
    vector<array<int, 4>> all;
    vector<int> vals;
    for (int i = 0; i < n; i++) {
        int a, b;
        cin >> a >> b;
        all.push_back({a, b, a + b, -1});
        vals.push_back(a);
        vals.push_back(b);
        vals.push_back(a + b);
    }
    for (int i = 0; i < q; i++) {
        int a, b, c;
        cin >> a >> b >> c;
        smax(c, a + b);
        all.push_back({a, b, c, i});
        vals.push_back(a);
        vals.push_back(b);
        vals.push_back(c);
    }
    sort(all.begin(), all.end(), [&] (array<int, 4> i, array<int, 4> j) {
            if (i[2] != j[2]) return i[2] > j[2];
            return i[3] < j[3];
    });
    sort(vals.begin(), vals.end());
    vals.erase(unique(vals.begin(), vals.end()), vals.end());
    map<int, int> hsh;
    for (int i = 0; i < vals.size(); i++) hsh[vals[i]] = i + 1;
    vector<int> ans(q);
    int o = 0;
    for (auto u : all) {
        if (u[3] == -1) {
            f1.Add(hsh[u[0]], 1);
            f2.Add(hsh[u[1]], 1);
            o += 1;
        }
        else {
            ans[u[3]] = o - f1.Get(hsh[u[0]]) - f2.Get(hsh[u[1]]);
        }
    }
    for (int i = 0; i < q; i++) cout << ans[i] << en;
    return 0;
}

Compilation message

examination.cpp: In function 'int main()':
examination.cpp:55:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |     for (int i = 0; i < vals.size(); i++) hsh[vals[i]] = i + 1;
      |                     ~~^~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 328 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 10 ms 1684 KB Output is correct
8 Correct 9 ms 1752 KB Output is correct
9 Correct 8 ms 1740 KB Output is correct
10 Correct 7 ms 1268 KB Output is correct
11 Correct 7 ms 1236 KB Output is correct
12 Correct 4 ms 716 KB Output is correct
13 Correct 8 ms 1684 KB Output is correct
14 Correct 9 ms 1656 KB Output is correct
15 Correct 9 ms 1672 KB Output is correct
16 Correct 5 ms 1112 KB Output is correct
17 Correct 7 ms 1108 KB Output is correct
18 Correct 3 ms 732 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 263 ms 17472 KB Output is correct
2 Correct 265 ms 17308 KB Output is correct
3 Correct 276 ms 17384 KB Output is correct
4 Correct 170 ms 13544 KB Output is correct
5 Correct 157 ms 13516 KB Output is correct
6 Correct 99 ms 8328 KB Output is correct
7 Correct 247 ms 16416 KB Output is correct
8 Correct 226 ms 16416 KB Output is correct
9 Correct 218 ms 16020 KB Output is correct
10 Correct 164 ms 13076 KB Output is correct
11 Correct 141 ms 13072 KB Output is correct
12 Correct 67 ms 8344 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 263 ms 17472 KB Output is correct
2 Correct 265 ms 17308 KB Output is correct
3 Correct 276 ms 17384 KB Output is correct
4 Correct 170 ms 13544 KB Output is correct
5 Correct 157 ms 13516 KB Output is correct
6 Correct 99 ms 8328 KB Output is correct
7 Correct 247 ms 16416 KB Output is correct
8 Correct 226 ms 16416 KB Output is correct
9 Correct 218 ms 16020 KB Output is correct
10 Correct 164 ms 13076 KB Output is correct
11 Correct 141 ms 13072 KB Output is correct
12 Correct 67 ms 8344 KB Output is correct
13 Correct 263 ms 18436 KB Output is correct
14 Correct 237 ms 17824 KB Output is correct
15 Correct 233 ms 17440 KB Output is correct
16 Correct 155 ms 13928 KB Output is correct
17 Correct 158 ms 14016 KB Output is correct
18 Correct 82 ms 8348 KB Output is correct
19 Correct 262 ms 18436 KB Output is correct
20 Correct 240 ms 17916 KB Output is correct
21 Correct 240 ms 17940 KB Output is correct
22 Correct 139 ms 13024 KB Output is correct
23 Correct 139 ms 12992 KB Output is correct
24 Correct 70 ms 8364 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 328 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 10 ms 1684 KB Output is correct
8 Correct 9 ms 1752 KB Output is correct
9 Correct 8 ms 1740 KB Output is correct
10 Correct 7 ms 1268 KB Output is correct
11 Correct 7 ms 1236 KB Output is correct
12 Correct 4 ms 716 KB Output is correct
13 Correct 8 ms 1684 KB Output is correct
14 Correct 9 ms 1656 KB Output is correct
15 Correct 9 ms 1672 KB Output is correct
16 Correct 5 ms 1112 KB Output is correct
17 Correct 7 ms 1108 KB Output is correct
18 Correct 3 ms 732 KB Output is correct
19 Correct 263 ms 17472 KB Output is correct
20 Correct 265 ms 17308 KB Output is correct
21 Correct 276 ms 17384 KB Output is correct
22 Correct 170 ms 13544 KB Output is correct
23 Correct 157 ms 13516 KB Output is correct
24 Correct 99 ms 8328 KB Output is correct
25 Correct 247 ms 16416 KB Output is correct
26 Correct 226 ms 16416 KB Output is correct
27 Correct 218 ms 16020 KB Output is correct
28 Correct 164 ms 13076 KB Output is correct
29 Correct 141 ms 13072 KB Output is correct
30 Correct 67 ms 8344 KB Output is correct
31 Correct 263 ms 18436 KB Output is correct
32 Correct 237 ms 17824 KB Output is correct
33 Correct 233 ms 17440 KB Output is correct
34 Correct 155 ms 13928 KB Output is correct
35 Correct 158 ms 14016 KB Output is correct
36 Correct 82 ms 8348 KB Output is correct
37 Correct 262 ms 18436 KB Output is correct
38 Correct 240 ms 17916 KB Output is correct
39 Correct 240 ms 17940 KB Output is correct
40 Correct 139 ms 13024 KB Output is correct
41 Correct 139 ms 12992 KB Output is correct
42 Correct 70 ms 8364 KB Output is correct
43 Correct 505 ms 43524 KB Output is correct
44 Correct 524 ms 43548 KB Output is correct
45 Correct 482 ms 43680 KB Output is correct
46 Correct 247 ms 29864 KB Output is correct
47 Correct 241 ms 29712 KB Output is correct
48 Correct 83 ms 8432 KB Output is correct
49 Correct 481 ms 44072 KB Output is correct
50 Correct 546 ms 43616 KB Output is correct
51 Correct 490 ms 43880 KB Output is correct
52 Correct 212 ms 24016 KB Output is correct
53 Correct 177 ms 21792 KB Output is correct