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답안 #328664

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
328664 2020-11-17T14:02:25 Z jovan_b Examination (JOI19_examination) C++17
100 / 100
 859 ms 48604 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;

struct BIT{
    int n;
    int val[1000000];
    int get(int x){
        int res = 0;
        while(x){
            res += val[x];
            x -= x & -x;
        }
        return res;
    }
    void add(int x, int vrd){
        while(x <= n){
            val[x] += vrd;
            x += x & -x;
        }
    }
};

struct query{
    int x, y, z, ind;
};

bool cmp1(query a, query b){
    if(a.x == b.x) return a.ind > b.ind;
    return a.x < b.x;
}

bool cmp2(query a, query b){
    if(a.z == b.z) return a.ind > b.ind;
    return a.z < b.z;
}

pair <int, int> niz[100005];
map <int, int> compr;
int tcomp;
query queries1[200005], queries2[200005];
int res[100005];

int main(){
    ios_base::sync_with_stdio(false);

    int n, q;
    cin >> n >> q;
    vector <int> compvec;
    for(int i=1; i<=n; i++){
        cin >> niz[i].first >> niz[i].second;
        compvec.push_back(niz[i].first);
        compvec.push_back(niz[i].second);
        compvec.push_back(niz[i].first+niz[i].second);
    }
    int q1 = 0, q2 = 0;
    for(int i=1; i<=q; i++){
        int x, y, z;
        cin >> x >> y >> z;
        compvec.push_back(x);
        compvec.push_back(y);
        compvec.push_back(z);
        query tq;
        tq.x = x, tq.y = y, tq.z = z, tq.ind = i;
        if(z <= x+y) queries1[++q1] = tq;
        else queries2[++q2] = tq;
    }
    for(int i=1; i<=n; i++){
        query tq;
        tq.x = niz[i].first;
        tq.y = niz[i].second;
        tq.ind = tq.z = 0;
        queries1[++q1] = tq;
    }
    sort(compvec.begin(), compvec.end());
    for(auto c : compvec){
        if(!compr[c]) compr[c] = ++tcomp;
    }
    sort(queries1+1, queries1+1+q1, cmp1);
    int bilo = 0;
    BIT sam;
    sam.n = tcomp;
    for(int i=q1; i>=1; i--){
        if(queries1[i].ind == 0){
            bilo++;
            sam.add(compr[queries1[i].y], 1);
        }
        else{
            res[queries1[i].ind] += bilo - sam.get(compr[queries1[i].y]-1);
        }
    }

    for(int i=1; i<=n; i++){
        query tq;
        tq.x = niz[i].first;
        tq.y = niz[i].second;
        tq.z = niz[i].first + niz[i].second;
        tq.ind = 0;
        queries2[++q2] = tq;
    }
    sort(queries2+1, queries2+1+q2, cmp2);
    BIT prvo, drugo;
    bilo = 0;
    prvo.n = drugo.n = tcomp;
    for(int i=q2; i>=1; i--){
        if(queries2[i].ind == 0){
            bilo++;
            prvo.add(compr[queries2[i].x], 1);
            drugo.add(compr[queries2[i].y], 1);
        }
        else{
            res[queries2[i].ind] += bilo - prvo.get(compr[queries2[i].x]-1) - drugo.get(compr[queries2[i].y]-1);
        }
    }
    for(int i=1; i<=q; i++) cout << res[i] << "\n";
    return 0;
}

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 15 ms 1900 KB Output is correct
8 Correct 12 ms 1900 KB Output is correct
9 Correct 15 ms 1900 KB Output is correct
10 Correct 8 ms 1388 KB Output is correct
11 Correct 9 ms 1388 KB Output is correct
12 Correct 4 ms 804 KB Output is correct
13 Correct 11 ms 1644 KB Output is correct
14 Correct 10 ms 1644 KB Output is correct
15 Correct 11 ms 1664 KB Output is correct
16 Correct 7 ms 1144 KB Output is correct
17 Correct 7 ms 1260 KB Output is correct
18 Correct 3 ms 748 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 410 ms 19164 KB Output is correct
2 Correct 384 ms 18140 KB Output is correct
3 Correct 407 ms 18012 KB Output is correct
4 Correct 217 ms 15404 KB Output is correct
5 Correct 279 ms 15728 KB Output is correct
6 Correct 113 ms 10480 KB Output is correct
7 Correct 400 ms 18140 KB Output is correct
8 Correct 385 ms 17884 KB Output is correct
9 Correct 344 ms 17704 KB Output is correct
10 Correct 281 ms 15196 KB Output is correct
11 Correct 208 ms 14684 KB Output is correct
12 Correct 98 ms 10020 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 410 ms 19164 KB Output is correct
2 Correct 384 ms 18140 KB Output is correct
3 Correct 407 ms 18012 KB Output is correct
4 Correct 217 ms 15404 KB Output is correct
5 Correct 279 ms 15728 KB Output is correct
6 Correct 113 ms 10480 KB Output is correct
7 Correct 400 ms 18140 KB Output is correct
8 Correct 385 ms 17884 KB Output is correct
9 Correct 344 ms 17704 KB Output is correct
10 Correct 281 ms 15196 KB Output is correct
11 Correct 208 ms 14684 KB Output is correct
12 Correct 98 ms 10020 KB Output is correct
13 Correct 435 ms 19164 KB Output is correct
14 Correct 404 ms 18156 KB Output is correct
15 Correct 374 ms 18012 KB Output is correct
16 Correct 259 ms 15580 KB Output is correct
17 Correct 299 ms 15836 KB Output is correct
18 Correct 113 ms 10440 KB Output is correct
19 Correct 432 ms 19164 KB Output is correct
20 Correct 414 ms 18652 KB Output is correct
21 Correct 421 ms 19164 KB Output is correct
22 Correct 248 ms 15068 KB Output is correct
23 Correct 216 ms 14684 KB Output is correct
24 Correct 90 ms 9948 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 15 ms 1900 KB Output is correct
8 Correct 12 ms 1900 KB Output is correct
9 Correct 15 ms 1900 KB Output is correct
10 Correct 8 ms 1388 KB Output is correct
11 Correct 9 ms 1388 KB Output is correct
12 Correct 4 ms 804 KB Output is correct
13 Correct 11 ms 1644 KB Output is correct
14 Correct 10 ms 1644 KB Output is correct
15 Correct 11 ms 1664 KB Output is correct
16 Correct 7 ms 1144 KB Output is correct
17 Correct 7 ms 1260 KB Output is correct
18 Correct 3 ms 748 KB Output is correct
19 Correct 410 ms 19164 KB Output is correct
20 Correct 384 ms 18140 KB Output is correct
21 Correct 407 ms 18012 KB Output is correct
22 Correct 217 ms 15404 KB Output is correct
23 Correct 279 ms 15728 KB Output is correct
24 Correct 113 ms 10480 KB Output is correct
25 Correct 400 ms 18140 KB Output is correct
26 Correct 385 ms 17884 KB Output is correct
27 Correct 344 ms 17704 KB Output is correct
28 Correct 281 ms 15196 KB Output is correct
29 Correct 208 ms 14684 KB Output is correct
30 Correct 98 ms 10020 KB Output is correct
31 Correct 435 ms 19164 KB Output is correct
32 Correct 404 ms 18156 KB Output is correct
33 Correct 374 ms 18012 KB Output is correct
34 Correct 259 ms 15580 KB Output is correct
35 Correct 299 ms 15836 KB Output is correct
36 Correct 113 ms 10440 KB Output is correct
37 Correct 432 ms 19164 KB Output is correct
38 Correct 414 ms 18652 KB Output is correct
39 Correct 421 ms 19164 KB Output is correct
40 Correct 248 ms 15068 KB Output is correct
41 Correct 216 ms 14684 KB Output is correct
42 Correct 90 ms 9948 KB Output is correct
43 Correct 859 ms 45584 KB Output is correct
44 Correct 820 ms 45500 KB Output is correct
45 Correct 816 ms 46564 KB Output is correct
46 Correct 379 ms 32576 KB Output is correct
47 Correct 497 ms 33884 KB Output is correct
48 Correct 118 ms 10360 KB Output is correct
49 Correct 804 ms 48476 KB Output is correct
50 Correct 835 ms 47588 KB Output is correct
51 Correct 830 ms 48604 KB Output is correct
52 Correct 438 ms 28804 KB Output is correct
53 Correct 252 ms 21724 KB Output is correct