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Submission #923343

# Submission time Handle Problem Language Result Execution time Memory
923343 2024-02-07T06:44:47 Z Amirreza_Fakhri Examination (JOI19_examination) C++17
100 / 100
 395 ms 26944 KB 
// In the name of the God
#include <bits/stdc++.h>
#define ll long long
// #define int long long
#define pb push_back
#define F first
#define S second
#define mp make_pair
#define pii pair <int, int>
#define smin(x, y) (x) = min((x), (y))
#define smax(x, y) (x) = max((x), (y))
#define all(x) (x).begin(), (x).end()
using namespace std;

const int inf = 1e9+7;
const int mod = 998244353;
const int maxn = 1e5+5;

int n, q, ans[maxn];
vector <vector <int> > fen[2];
vector <int> a;
vector <pair <int, pii> > vec;
vector <pair <pii, pii> > qs;

void upd3(int i, int j) {
    // cout << i << ' ' << j << ' ' << fen[0][i-1].size() << '\n';
    for (j = fen[0][i-1].size()-j; j <= fen[0][i-1].size(); j += j&-j) {
        // assert(j < 0);
        fen[1][i-1][j-1]++;
    }
}

void upd1(int i, int x) {
    for (i = fen[0].size()-i; i <= fen[0].size(); i += i&-i) fen[0][i-1].pb(x);
}
void upd2(int i, int x) {
    // cout << x << "DD\n";
    for (i = fen[0].size()-i; i <= fen[0].size(); i += i&-i) {
        int j = lower_bound(all(fen[0][i-1]), x)-fen[0][i-1].begin();
        upd3(i, j);
    }
}

int get1(int i, int j) {
    int ans = 0;
    for (j = fen[0][i-1].size()-j; j; j -= j&-j) ans += fen[1][i-1][j-1];
    return ans;
}

int get(int i, int x) {
    int ans = 0;
    for (i = fen[0].size()-i; i; i -= i&-i) {
        int j = lower_bound(all(fen[0][i-1]), x)-fen[0][i-1].begin();
        ans += get1(i, j);
    }
    return ans;
}

int32_t main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n >> q;
    for (int i = 0; i < n; i++) {
        int s, t; cin >> s >> t;
        a.pb(s);
        vec.pb(mp(s+t, mp(s, t)));
    }
    sort(all(a)), sort(all(vec));
    a.resize(unique(all(a))-a.begin());
    fen[0].resize(a.size());
    fen[1].resize(a.size());
    for (int i = 0; i < n; i++) {
        int j = lower_bound(all(a), vec[i].S.F)-a.begin();
        upd1(j, vec[i].S.S);
    }
    for (int i = 0; i < fen[0].size(); i++) {
        sort(all(fen[0][i]));
        fen[0][i].resize(unique(all(fen[0][i]))-fen[0][i].begin());
        fen[1][i].resize(fen[0][i].size());
    }
    for (int i = 0; i < q; i++) {
        int x, y, z; cin >> x >> y >> z;
        qs.pb(mp(mp(z, x), mp(y, i)));
    }
    sort(all(qs));
    for (int i = q-1; i >= 0; i--) {
        while (vec.size() and vec.back().F >= qs[i].F.F) {
            int j = lower_bound(all(a), vec.back().S.F)-a.begin();
            upd2(j, vec.back().S.S);
            vec.pop_back();
        }
        int j = lower_bound(all(a), qs[i].F.S)-a.begin();
        ans[qs[i].S.S] = get(j, qs[i].S.F);
    }
    for (int i = 0; i < q; i++) cout << ans[i] << '\n';
    return 0;
}

Compilation message

examination.cpp: In function 'void upd3(int, int)':
examination.cpp:27:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for (j = fen[0][i-1].size()-j; j <= fen[0][i-1].size(); j += j&-j) {
      |                                    ~~^~~~~~~~~~~~~~~~~~~~~
examination.cpp: In function 'void upd1(int, int)':
examination.cpp:34:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |     for (i = fen[0].size()-i; i <= fen[0].size(); i += i&-i) fen[0][i-1].pb(x);
      |                               ~~^~~~~~~~~~~~~~~~
examination.cpp: In function 'void upd2(int, int)':
examination.cpp:38:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |     for (i = fen[0].size()-i; i <= fen[0].size(); i += i&-i) {
      |                               ~~^~~~~~~~~~~~~~~~
examination.cpp: In function 'int32_t main()':
examination.cpp:75:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   75 |     for (int i = 0; i < fen[0].size(); i++) {
      |                     ~~^~~~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 6 ms 1144 KB Output is correct
8 Correct 6 ms 1116 KB Output is correct
9 Correct 7 ms 992 KB Output is correct
10 Correct 6 ms 1116 KB Output is correct
11 Correct 3 ms 604 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 6 ms 1116 KB Output is correct
14 Correct 5 ms 1368 KB Output is correct
15 Correct 5 ms 1112 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 3 ms 1116 KB Output is correct
18 Correct 2 ms 616 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 263 ms 20516 KB Output is correct
2 Correct 269 ms 20488 KB Output is correct
3 Correct 281 ms 20496 KB Output is correct
4 Correct 147 ms 17572 KB Output is correct
5 Correct 99 ms 8988 KB Output is correct
6 Correct 58 ms 7860 KB Output is correct
7 Correct 286 ms 20440 KB Output is correct
8 Correct 261 ms 20564 KB Output is correct
9 Correct 249 ms 20464 KB Output is correct
10 Correct 72 ms 7640 KB Output is correct
11 Correct 103 ms 16996 KB Output is correct
12 Correct 43 ms 6516 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 263 ms 20516 KB Output is correct
2 Correct 269 ms 20488 KB Output is correct
3 Correct 281 ms 20496 KB Output is correct
4 Correct 147 ms 17572 KB Output is correct
5 Correct 99 ms 8988 KB Output is correct
6 Correct 58 ms 7860 KB Output is correct
7 Correct 286 ms 20440 KB Output is correct
8 Correct 261 ms 20564 KB Output is correct
9 Correct 249 ms 20464 KB Output is correct
10 Correct 72 ms 7640 KB Output is correct
11 Correct 103 ms 16996 KB Output is correct
12 Correct 43 ms 6516 KB Output is correct
13 Correct 352 ms 20940 KB Output is correct
14 Correct 328 ms 20896 KB Output is correct
15 Correct 288 ms 20484 KB Output is correct
16 Correct 147 ms 17972 KB Output is correct
17 Correct 117 ms 9428 KB Output is correct
18 Correct 58 ms 7688 KB Output is correct
19 Correct 335 ms 20928 KB Output is correct
20 Correct 336 ms 20860 KB Output is correct
21 Correct 309 ms 20720 KB Output is correct
22 Correct 71 ms 7636 KB Output is correct
23 Correct 120 ms 17116 KB Output is correct
24 Correct 43 ms 6876 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 6 ms 1144 KB Output is correct
8 Correct 6 ms 1116 KB Output is correct
9 Correct 7 ms 992 KB Output is correct
10 Correct 6 ms 1116 KB Output is correct
11 Correct 3 ms 604 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 6 ms 1116 KB Output is correct
14 Correct 5 ms 1368 KB Output is correct
15 Correct 5 ms 1112 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 3 ms 1116 KB Output is correct
18 Correct 2 ms 616 KB Output is correct
19 Correct 263 ms 20516 KB Output is correct
20 Correct 269 ms 20488 KB Output is correct
21 Correct 281 ms 20496 KB Output is correct
22 Correct 147 ms 17572 KB Output is correct
23 Correct 99 ms 8988 KB Output is correct
24 Correct 58 ms 7860 KB Output is correct
25 Correct 286 ms 20440 KB Output is correct
26 Correct 261 ms 20564 KB Output is correct
27 Correct 249 ms 20464 KB Output is correct
28 Correct 72 ms 7640 KB Output is correct
29 Correct 103 ms 16996 KB Output is correct
30 Correct 43 ms 6516 KB Output is correct
31 Correct 352 ms 20940 KB Output is correct
32 Correct 328 ms 20896 KB Output is correct
33 Correct 288 ms 20484 KB Output is correct
34 Correct 147 ms 17972 KB Output is correct
35 Correct 117 ms 9428 KB Output is correct
36 Correct 58 ms 7688 KB Output is correct
37 Correct 335 ms 20928 KB Output is correct
38 Correct 336 ms 20860 KB Output is correct
39 Correct 309 ms 20720 KB Output is correct
40 Correct 71 ms 7636 KB Output is correct
41 Correct 120 ms 17116 KB Output is correct
42 Correct 43 ms 6876 KB Output is correct
43 Correct 395 ms 26944 KB Output is correct
44 Correct 365 ms 26896 KB Output is correct
45 Correct 363 ms 26584 KB Output is correct
46 Correct 174 ms 23052 KB Output is correct
47 Correct 125 ms 10720 KB Output is correct
48 Correct 65 ms 7588 KB Output is correct
49 Correct 350 ms 26536 KB Output is correct
50 Correct 352 ms 26648 KB Output is correct
51 Correct 314 ms 26496 KB Output is correct
52 Correct 87 ms 9608 KB Output is correct
53 Correct 143 ms 21720 KB Output is correct