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Submission #996189

# Submission time Handle Problem Language Result Execution time Memory
996189 2024-06-10T08:37:39 Z Neco_arc Examination (JOI19_examination) C++17
100 / 100
 543 ms 85516 KB 
#include <bits/stdc++.h>
//#include <bits/debug.hpp>

#define ll long long
#define all(x) x.begin(), x.end()
#define Neco "Examination"
#define resp(x) sort(all(x)), x.resize(unique(all(x)) - x.begin())
#define getbit(x,i) ((x >> i)&1)
#define _left id * 2, l, mid
#define _right id * 2 + 1, mid + 1, r
#define cntbit(x) __builtin_popcountll(x)
#define fi(i, a, b) for(int i = a; i <= b; i++)
#define fid(i, a, b) for(int i = a; i >= b; i--)
#define maxn (int) 6e5 + 7

using namespace std;

const ll mod = 1e9 + 7; //972663749
const ll base = 911382323;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
ll GetRandom(ll l, ll r) {
    return uniform_int_distribution<ll> (l, r)(rng);
}

int n, q;
vector<ll> Val;
int ans[maxn], res[maxn];
struct dl {
    ll x, y, z, id;
} qr[maxn];

struct BIT {
    vector<int> bit[maxn], nodes[maxn];

    void init(vector<pair<int, int>> P) {
        sort(all(P), [](pair<int, int> x, pair<int, int> y) { return x.second < y.second; });
        for(auto [x, y] : P) {
            for(int u = x; u < maxn; u += (u & -u)) {
                if(nodes[u].empty() || nodes[u].back() != y) nodes[u].push_back(y);
            }
        }

        fi(i, 1, maxn - 2) bit[i].resize(nodes[i].size() + 5);
    }

    int GetID(int x, int val) {
        return upper_bound(all(nodes[x]), val) - nodes[x].begin();
    }

    void update(int u, int v) {
        for(int x = u; x < maxn; x += (x & -x))
        for(int y = GetID(x, v); y < bit[x].size(); y += (y & -y)) {
            bit[x][y] ++;
        }
    }

    int get(int u, int v, int ans = 0) {
        for(int x = u; x > 0; x -= (x & -x))
        for(int y = GetID(x, v); y > 0; y -= (y & -y)) {
            ans += bit[x][y];
        }
        return ans;
    }

    int get(int x, int y, int u, int v) {
        return get(u, v) - get(u, y - 1) - get(x - 1, v) + get(x - 1, y - 1);
    }

} Bit;

void solve()
{

    cin >> n >> q;
    fi(i, 1, n + q) {
        if(i <= n) cin >> qr[i].x >> qr[i].y, qr[i].z = qr[i].x + qr[i].y;
        else cin >> qr[i].x >> qr[i].y >> qr[i].z;

        qr[i].id = (i > n) ? i - n : -i;
        Val.push_back(qr[i].x);
        Val.push_back(qr[i].y);
        Val.push_back(qr[i].z);
    }


    resp(Val);
    int N = Val.size();

    auto getv = [&](ll x) {
        return upper_bound(all(Val), x) - Val.begin();
    };

    vector<pair<int, int>> todo;

    fi(i, 1, n + q) {
        qr[i].x = getv(qr[i].x);
        qr[i].y = getv(qr[i].y);
        qr[i].z = getv(qr[i].z);

        if(i <= n) todo.push_back({qr[i].y, qr[i].z});
    }


    Bit.init(todo);
    sort(qr + 1, qr + 1 + n + q, [](dl x, dl y) {
            if(x.x == y.x) return x.id < y.id;
            return x.x > y.x;
        } );

    fi(i, 1, n + q) {
        int x = qr[i].x, y = qr[i].y, z = qr[i].z, id = qr[i].id;

        if(id < 0) Bit.update(y, z);
        else  ans[id] = Bit.get(y, z, N, N);
    }

    fi(i, 1, q) cout << ans[i] << '\n';

}


int main()
{

    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    if(fopen(Neco".inp", "r")) {
        freopen(Neco".inp", "r", stdin);
        freopen(Neco".out", "w", stdout);
    }


    int nTest = 1;
//    cin >> nTest;


    while(nTest--)
    {
        solve();
    }


    return 0;
}

Compilation message

examination.cpp: In member function 'void BIT::update(int, int)':
examination.cpp:53:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |         for(int y = GetID(x, v); y < bit[x].size(); y += (y & -y)) {
      |                                  ~~^~~~~~~~~~~~~~~
examination.cpp: In function 'void solve()':
examination.cpp:112:13: warning: unused variable 'x' [-Wunused-variable]
  112 |         int x = qr[i].x, y = qr[i].y, z = qr[i].z, id = qr[i].id;
      |             ^
examination.cpp: In function 'int main()':
examination.cpp:131:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  131 |         freopen(Neco".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
examination.cpp:132:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  132 |         freopen(Neco".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 50152 KB Output is correct
2 Correct 30 ms 50000 KB Output is correct
3 Correct 27 ms 50012 KB Output is correct
4 Correct 27 ms 50012 KB Output is correct
5 Correct 29 ms 50012 KB Output is correct
6 Correct 37 ms 50004 KB Output is correct
7 Correct 47 ms 50904 KB Output is correct
8 Correct 36 ms 50900 KB Output is correct
9 Correct 40 ms 50904 KB Output is correct
10 Correct 41 ms 50908 KB Output is correct
11 Correct 34 ms 50904 KB Output is correct
12 Correct 33 ms 50400 KB Output is correct
13 Correct 36 ms 50908 KB Output is correct
14 Correct 36 ms 50764 KB Output is correct
15 Correct 37 ms 50900 KB Output is correct
16 Correct 34 ms 50904 KB Output is correct
17 Correct 39 ms 50912 KB Output is correct
18 Correct 32 ms 50388 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 357 ms 79028 KB Output is correct
2 Correct 347 ms 81080 KB Output is correct
3 Correct 358 ms 79288 KB Output is correct
4 Correct 238 ms 77748 KB Output is correct
5 Correct 327 ms 76384 KB Output is correct
6 Correct 118 ms 67912 KB Output is correct
7 Correct 375 ms 80564 KB Output is correct
8 Correct 332 ms 79056 KB Output is correct
9 Correct 341 ms 79296 KB Output is correct
10 Correct 354 ms 76216 KB Output is correct
11 Correct 224 ms 77748 KB Output is correct
12 Correct 100 ms 67260 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 357 ms 79028 KB Output is correct
2 Correct 347 ms 81080 KB Output is correct
3 Correct 358 ms 79288 KB Output is correct
4 Correct 238 ms 77748 KB Output is correct
5 Correct 327 ms 76384 KB Output is correct
6 Correct 118 ms 67912 KB Output is correct
7 Correct 375 ms 80564 KB Output is correct
8 Correct 332 ms 79056 KB Output is correct
9 Correct 341 ms 79296 KB Output is correct
10 Correct 354 ms 76216 KB Output is correct
11 Correct 224 ms 77748 KB Output is correct
12 Correct 100 ms 67260 KB Output is correct
13 Correct 457 ms 80308 KB Output is correct
14 Correct 421 ms 79800 KB Output is correct
15 Correct 352 ms 79188 KB Output is correct
16 Correct 311 ms 77500 KB Output is correct
17 Correct 373 ms 76104 KB Output is correct
18 Correct 149 ms 68160 KB Output is correct
19 Correct 411 ms 80052 KB Output is correct
20 Correct 439 ms 79544 KB Output is correct
21 Correct 416 ms 80204 KB Output is correct
22 Correct 362 ms 75188 KB Output is correct
23 Correct 223 ms 78260 KB Output is correct
24 Correct 112 ms 67004 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 50152 KB Output is correct
2 Correct 30 ms 50000 KB Output is correct
3 Correct 27 ms 50012 KB Output is correct
4 Correct 27 ms 50012 KB Output is correct
5 Correct 29 ms 50012 KB Output is correct
6 Correct 37 ms 50004 KB Output is correct
7 Correct 47 ms 50904 KB Output is correct
8 Correct 36 ms 50900 KB Output is correct
9 Correct 40 ms 50904 KB Output is correct
10 Correct 41 ms 50908 KB Output is correct
11 Correct 34 ms 50904 KB Output is correct
12 Correct 33 ms 50400 KB Output is correct
13 Correct 36 ms 50908 KB Output is correct
14 Correct 36 ms 50764 KB Output is correct
15 Correct 37 ms 50900 KB Output is correct
16 Correct 34 ms 50904 KB Output is correct
17 Correct 39 ms 50912 KB Output is correct
18 Correct 32 ms 50388 KB Output is correct
19 Correct 357 ms 79028 KB Output is correct
20 Correct 347 ms 81080 KB Output is correct
21 Correct 358 ms 79288 KB Output is correct
22 Correct 238 ms 77748 KB Output is correct
23 Correct 327 ms 76384 KB Output is correct
24 Correct 118 ms 67912 KB Output is correct
25 Correct 375 ms 80564 KB Output is correct
26 Correct 332 ms 79056 KB Output is correct
27 Correct 341 ms 79296 KB Output is correct
28 Correct 354 ms 76216 KB Output is correct
29 Correct 224 ms 77748 KB Output is correct
30 Correct 100 ms 67260 KB Output is correct
31 Correct 457 ms 80308 KB Output is correct
32 Correct 421 ms 79800 KB Output is correct
33 Correct 352 ms 79188 KB Output is correct
34 Correct 311 ms 77500 KB Output is correct
35 Correct 373 ms 76104 KB Output is correct
36 Correct 149 ms 68160 KB Output is correct
37 Correct 411 ms 80052 KB Output is correct
38 Correct 439 ms 79544 KB Output is correct
39 Correct 416 ms 80204 KB Output is correct
40 Correct 362 ms 75188 KB Output is correct
41 Correct 223 ms 78260 KB Output is correct
42 Correct 112 ms 67004 KB Output is correct
43 Correct 484 ms 83676 KB Output is correct
44 Correct 543 ms 84576 KB Output is correct
45 Correct 538 ms 84372 KB Output is correct
46 Correct 334 ms 85516 KB Output is correct
47 Correct 454 ms 82396 KB Output is correct
48 Correct 143 ms 65972 KB Output is correct
49 Correct 489 ms 84160 KB Output is correct
50 Correct 451 ms 84668 KB Output is correct
51 Correct 447 ms 84792 KB Output is correct
52 Correct 486 ms 82680 KB Output is correct
53 Correct 244 ms 84880 KB Output is correct