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답안 #907222

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
907222 2024-01-15T09:21:18 Z a_l_i_r_e_z_a Examination (JOI19_examination) C++17
100 / 100
 869 ms 10840 KB 
// In the name of God

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<ll, ll> pii;
typedef pair<ll, ll> pll;

#define pb push_back
#define S second
#define F first
#define mp make_pair
#define smax(x, y) (x) = max((x), (y))
#define smin(x, y) (x) = min((x), (y))
#define all(x) (x).begin(), (x).end()
#define len(x) ((ll)(x).size())

const ll maxn = 1e5 + 5;
const ll inf = 1e9 + 7;
ll n, q, cur, sq = 1200, arr[maxn], ans[maxn];
pll a[maxn];
pair<pll, pll> b[maxn];
vector<ll> vec[maxn];

inline bool cmp(int i, int j){
    return a[i].F + a[i].S < a[j].F + a[j].S;
}

inline void del(int i){
    ll x = a[i].S;
    i = i / sq;
    vec[i].erase(find(all(vec[i]), x));
}

inline ll get(ll i, ll x){
    ll res = 0;
    for(; i < n; i += sq){
        int d = lower_bound(all(vec[i / sq]), x) - vec[i / sq].begin();
        res += vec[i / sq].size() - d;
    }
    return res;
}

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++){
        cin >> a[i].F;
        cin >> a[i].S;
    }
    sort(a, a + n);
    for(int i = 0; i < n; i++){
        vec[i / sq].pb(a[i].S);
    }
    for(int i = 0; i < sq; i++) sort(all(vec[i]));
    for(int i = 0; i < q; i++){
        cin >> b[i].S.F >> b[i].S.S >> b[i].F.F;
        b[i].F.S = i;
    }
    sort(b, b + q);
    for(int i = 0; i < n; i++) arr[i] = i;
    sort(arr, arr + n, cmp);
    for(int i = 0; i < q; i++){
        ll Z = b[i].F.F, ind = b[i].F.S, A = b[i].S.F, B = b[i].S.S;
        while(cur < n && a[arr[cur]].F + a[arr[cur]].S < Z) del(arr[cur++]);
        int j = lower_bound(a, a + n, mp(A, 0ll)) - a;
        for(; j < n && j % sq; j++){
            if(a[j].F >= A && a[j].S >= B && a[j].F + a[j].S >= Z) ans[ind]++;
        }
        if(j < n) ans[ind] += get(j, B);
    }
    for(int i = 0; i < q; i++) cout << ans[i] << '\n';

    return 0;
}

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8796 KB Output is correct
2 Correct 3 ms 8796 KB Output is correct
3 Correct 2 ms 8796 KB Output is correct
4 Correct 3 ms 8796 KB Output is correct
5 Correct 2 ms 8796 KB Output is correct
6 Correct 3 ms 8796 KB Output is correct
7 Correct 16 ms 8796 KB Output is correct
8 Correct 17 ms 8796 KB Output is correct
9 Correct 17 ms 8796 KB Output is correct
10 Correct 15 ms 8796 KB Output is correct
11 Correct 13 ms 8796 KB Output is correct
12 Correct 10 ms 8796 KB Output is correct
13 Correct 15 ms 8796 KB Output is correct
14 Correct 11 ms 8792 KB Output is correct
15 Correct 11 ms 8884 KB Output is correct
16 Correct 3 ms 8796 KB Output is correct
17 Correct 11 ms 8796 KB Output is correct
18 Correct 3 ms 8880 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 736 ms 10788 KB Output is correct
2 Correct 672 ms 10796 KB Output is correct
3 Correct 656 ms 10832 KB Output is correct
4 Correct 507 ms 10832 KB Output is correct
5 Correct 431 ms 10796 KB Output is correct
6 Correct 386 ms 10832 KB Output is correct
7 Correct 862 ms 10836 KB Output is correct
8 Correct 539 ms 10792 KB Output is correct
9 Correct 654 ms 10804 KB Output is correct
10 Correct 99 ms 10580 KB Output is correct
11 Correct 413 ms 10544 KB Output is correct
12 Correct 62 ms 10324 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 736 ms 10788 KB Output is correct
2 Correct 672 ms 10796 KB Output is correct
3 Correct 656 ms 10832 KB Output is correct
4 Correct 507 ms 10832 KB Output is correct
5 Correct 431 ms 10796 KB Output is correct
6 Correct 386 ms 10832 KB Output is correct
7 Correct 862 ms 10836 KB Output is correct
8 Correct 539 ms 10792 KB Output is correct
9 Correct 654 ms 10804 KB Output is correct
10 Correct 99 ms 10580 KB Output is correct
11 Correct 413 ms 10544 KB Output is correct
12 Correct 62 ms 10324 KB Output is correct
13 Correct 604 ms 10788 KB Output is correct
14 Correct 670 ms 10796 KB Output is correct
15 Correct 650 ms 10832 KB Output is correct
16 Correct 483 ms 10800 KB Output is correct
17 Correct 404 ms 10840 KB Output is correct
18 Correct 352 ms 10796 KB Output is correct
19 Correct 598 ms 10796 KB Output is correct
20 Correct 644 ms 10836 KB Output is correct
21 Correct 597 ms 10832 KB Output is correct
22 Correct 107 ms 10792 KB Output is correct
23 Correct 406 ms 10532 KB Output is correct
24 Correct 64 ms 10320 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8796 KB Output is correct
2 Correct 3 ms 8796 KB Output is correct
3 Correct 2 ms 8796 KB Output is correct
4 Correct 3 ms 8796 KB Output is correct
5 Correct 2 ms 8796 KB Output is correct
6 Correct 3 ms 8796 KB Output is correct
7 Correct 16 ms 8796 KB Output is correct
8 Correct 17 ms 8796 KB Output is correct
9 Correct 17 ms 8796 KB Output is correct
10 Correct 15 ms 8796 KB Output is correct
11 Correct 13 ms 8796 KB Output is correct
12 Correct 10 ms 8796 KB Output is correct
13 Correct 15 ms 8796 KB Output is correct
14 Correct 11 ms 8792 KB Output is correct
15 Correct 11 ms 8884 KB Output is correct
16 Correct 3 ms 8796 KB Output is correct
17 Correct 11 ms 8796 KB Output is correct
18 Correct 3 ms 8880 KB Output is correct
19 Correct 736 ms 10788 KB Output is correct
20 Correct 672 ms 10796 KB Output is correct
21 Correct 656 ms 10832 KB Output is correct
22 Correct 507 ms 10832 KB Output is correct
23 Correct 431 ms 10796 KB Output is correct
24 Correct 386 ms 10832 KB Output is correct
25 Correct 862 ms 10836 KB Output is correct
26 Correct 539 ms 10792 KB Output is correct
27 Correct 654 ms 10804 KB Output is correct
28 Correct 99 ms 10580 KB Output is correct
29 Correct 413 ms 10544 KB Output is correct
30 Correct 62 ms 10324 KB Output is correct
31 Correct 604 ms 10788 KB Output is correct
32 Correct 670 ms 10796 KB Output is correct
33 Correct 650 ms 10832 KB Output is correct
34 Correct 483 ms 10800 KB Output is correct
35 Correct 404 ms 10840 KB Output is correct
36 Correct 352 ms 10796 KB Output is correct
37 Correct 598 ms 10796 KB Output is correct
38 Correct 644 ms 10836 KB Output is correct
39 Correct 597 ms 10832 KB Output is correct
40 Correct 107 ms 10792 KB Output is correct
41 Correct 406 ms 10532 KB Output is correct
42 Correct 64 ms 10320 KB Output is correct
43 Correct 595 ms 10800 KB Output is correct
44 Correct 596 ms 10792 KB Output is correct
45 Correct 679 ms 10792 KB Output is correct
46 Correct 494 ms 10824 KB Output is correct
47 Correct 400 ms 10796 KB Output is correct
48 Correct 341 ms 10580 KB Output is correct
49 Correct 869 ms 10820 KB Output is correct
50 Correct 491 ms 10792 KB Output is correct
51 Correct 599 ms 10796 KB Output is correct
52 Correct 110 ms 10580 KB Output is correct
53 Correct 418 ms 10580 KB Output is correct