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답안 #328605

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
328605 2020-11-17T10:36:40 Z jovan_b Examination (JOI19_examination) C++17
100 / 100
 851 ms 47708 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 = 1000000;
    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 = 1000000;
    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 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 12 ms 1900 KB Output is correct
8 Correct 13 ms 1900 KB Output is correct
9 Correct 15 ms 1900 KB Output is correct
10 Correct 10 ms 1516 KB Output is correct
11 Correct 9 ms 1516 KB Output is correct
12 Correct 4 ms 932 KB Output is correct
13 Correct 11 ms 1772 KB Output is correct
14 Correct 10 ms 1772 KB Output is correct
15 Correct 11 ms 1772 KB Output is correct
16 Correct 7 ms 1132 KB Output is correct
17 Correct 8 ms 1408 KB Output is correct
18 Correct 4 ms 876 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 382 ms 18140 KB Output is correct
2 Correct 406 ms 19460 KB Output is correct
3 Correct 374 ms 19292 KB Output is correct
4 Correct 215 ms 15912 KB Output is correct
5 Correct 287 ms 16220 KB Output is correct
6 Correct 119 ms 10460 KB Output is correct
7 Correct 388 ms 19036 KB Output is correct
8 Correct 365 ms 19164 KB Output is correct
9 Correct 347 ms 18780 KB Output is correct
10 Correct 272 ms 15580 KB Output is correct
11 Correct 218 ms 15324 KB Output is correct
12 Correct 101 ms 10076 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 382 ms 18140 KB Output is correct
2 Correct 406 ms 19460 KB Output is correct
3 Correct 374 ms 19292 KB Output is correct
4 Correct 215 ms 15912 KB Output is correct
5 Correct 287 ms 16220 KB Output is correct
6 Correct 119 ms 10460 KB Output is correct
7 Correct 388 ms 19036 KB Output is correct
8 Correct 365 ms 19164 KB Output is correct
9 Correct 347 ms 18780 KB Output is correct
10 Correct 272 ms 15580 KB Output is correct
11 Correct 218 ms 15324 KB Output is correct
12 Correct 101 ms 10076 KB Output is correct
13 Correct 423 ms 21084 KB Output is correct
14 Correct 450 ms 19804 KB Output is correct
15 Correct 391 ms 19312 KB Output is correct
16 Correct 268 ms 16704 KB Output is correct
17 Correct 296 ms 16732 KB Output is correct
18 Correct 124 ms 10460 KB Output is correct
19 Correct 439 ms 20956 KB Output is correct
20 Correct 404 ms 20316 KB Output is correct
21 Correct 430 ms 20956 KB Output is correct
22 Correct 273 ms 15580 KB Output is correct
23 Correct 211 ms 15384 KB Output is correct
24 Correct 100 ms 10076 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 12 ms 1900 KB Output is correct
8 Correct 13 ms 1900 KB Output is correct
9 Correct 15 ms 1900 KB Output is correct
10 Correct 10 ms 1516 KB Output is correct
11 Correct 9 ms 1516 KB Output is correct
12 Correct 4 ms 932 KB Output is correct
13 Correct 11 ms 1772 KB Output is correct
14 Correct 10 ms 1772 KB Output is correct
15 Correct 11 ms 1772 KB Output is correct
16 Correct 7 ms 1132 KB Output is correct
17 Correct 8 ms 1408 KB Output is correct
18 Correct 4 ms 876 KB Output is correct
19 Correct 382 ms 18140 KB Output is correct
20 Correct 406 ms 19460 KB Output is correct
21 Correct 374 ms 19292 KB Output is correct
22 Correct 215 ms 15912 KB Output is correct
23 Correct 287 ms 16220 KB Output is correct
24 Correct 119 ms 10460 KB Output is correct
25 Correct 388 ms 19036 KB Output is correct
26 Correct 365 ms 19164 KB Output is correct
27 Correct 347 ms 18780 KB Output is correct
28 Correct 272 ms 15580 KB Output is correct
29 Correct 218 ms 15324 KB Output is correct
30 Correct 101 ms 10076 KB Output is correct
31 Correct 423 ms 21084 KB Output is correct
32 Correct 450 ms 19804 KB Output is correct
33 Correct 391 ms 19312 KB Output is correct
34 Correct 268 ms 16704 KB Output is correct
35 Correct 296 ms 16732 KB Output is correct
36 Correct 124 ms 10460 KB Output is correct
37 Correct 439 ms 20956 KB Output is correct
38 Correct 404 ms 20316 KB Output is correct
39 Correct 430 ms 20956 KB Output is correct
40 Correct 273 ms 15580 KB Output is correct
41 Correct 211 ms 15384 KB Output is correct
42 Correct 100 ms 10076 KB Output is correct
43 Correct 851 ms 47016 KB Output is correct
44 Correct 836 ms 46920 KB Output is correct
45 Correct 800 ms 47580 KB Output is correct
46 Correct 400 ms 32476 KB Output is correct
47 Correct 502 ms 34268 KB Output is correct
48 Correct 127 ms 10460 KB Output is correct
49 Correct 824 ms 47532 KB Output is correct
50 Correct 850 ms 46952 KB Output is correct
51 Correct 820 ms 47708 KB Output is correct
52 Correct 471 ms 28948 KB Output is correct
53 Correct 246 ms 21852 KB Output is correct