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답안 #933533

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
933533 2024-02-25T21:11:54 Z Hanksburger Examination (JOI19_examination) C++17
100 / 100
 1042 ms 43388 KB 
#include <bits/stdc++.h>
using namespace std;
vector<pair<pair<int, int>, pair<int, int> > > vec;
int bit[600005], ans[100005];
map<int, int> mp;
void upd(int x, int y)
{
    for (int i=x; i<=6e5; i+=i&(-i))
        bit[i]+=y;
}
int qry(int x)
{
    int res=0;
    for (int i=x; i; i-=i&(-i))
        res+=bit[i];
    return res;
}
void recur(int l, int r)
{
    if (l==r)
        return;
    int mid=(l+r)/2;
    vector<pair<pair<int, int>, int> > a;
    vector<pair<int, int> > b;
    for (int i=l; i<=mid; i++)
        if (vec[i].first.second<1e9)
            a.push_back({vec[i].second, vec[i].first.second});
    for (int i=mid+1; i<=r; i++)
        if (vec[i].first.second==1e9)
            b.push_back(vec[i].second);
    sort(a.begin(), a.end());
    sort(b.begin(), b.end());
    int ind=b.size();
    for (int i=a.size()-1; i>=0; i--)
    {
        while (ind && b[ind-1].first>=a[i].first.first)
        {
            upd(6e5+1-b[ind-1].second, 1);
            ind--;
        }
        ans[a[i].second]+=qry(6e5+1-a[i].first.second);
    }
    for (int i=ind; i<b.size(); i++)
        upd(6e5+1-b[i].second, -1);
    recur(l, mid);
    recur(mid+1, r);
}
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n, m, cnt=0;
    cin >> n >> m;
    for (int i=1; i<=n; i++)
    {
        int x, y;
        cin >> x >> y;
        vec.push_back({{x+y, 1e9}, {x, y}});
        mp[x]=mp[y]=mp[x+y]=0;
    }
    for (int i=1; i<=m; i++)
    {
        int x, y, z;
        cin >> x >> y >> z;
        vec.push_back({{z, i}, {x, y}});
        mp[x]=mp[y]=mp[z]=0;
    }
    for (auto it=mp.begin(); it!=mp.end(); it++)
        (*it).second=(++cnt);
    for (int i=0; i<vec.size(); i++)
    {
        vec[i].first.first=mp[vec[i].first.first];
        vec[i].second.first=mp[vec[i].second.first];
        vec[i].second.second=mp[vec[i].second.second];
    }
    sort(vec.begin(), vec.end());
    recur(0, vec.size()-1);
    for (int i=1; i<=m; i++)
        cout << ans[i] << '\n';
}

Compilation message

examination.cpp: In function 'void recur(int, int)':
examination.cpp:43:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |     for (int i=ind; i<b.size(); i++)
      |                     ~^~~~~~~~~
examination.cpp: In function 'int main()':
examination.cpp:71:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::pair<int, int>, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |     for (int i=0; i<vec.size(); i++)
      |                   ~^~~~~~~~~~~

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 10 ms 1576 KB Output is correct
8 Correct 10 ms 1372 KB Output is correct
9 Correct 10 ms 1372 KB Output is correct
10 Correct 8 ms 1116 KB Output is correct
11 Correct 9 ms 1116 KB Output is correct
12 Correct 4 ms 604 KB Output is correct
13 Correct 9 ms 1612 KB Output is correct
14 Correct 8 ms 1372 KB Output is correct
15 Correct 8 ms 1508 KB Output is correct
16 Correct 6 ms 860 KB Output is correct
17 Correct 7 ms 1116 KB Output is correct
18 Correct 3 ms 732 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 360 ms 14960 KB Output is correct
2 Correct 355 ms 16568 KB Output is correct
3 Correct 386 ms 16544 KB Output is correct
4 Correct 248 ms 14520 KB Output is correct
5 Correct 289 ms 12724 KB Output is correct
6 Correct 148 ms 9660 KB Output is correct
7 Correct 356 ms 17868 KB Output is correct
8 Correct 350 ms 18868 KB Output is correct
9 Correct 335 ms 19232 KB Output is correct
10 Correct 244 ms 14216 KB Output is correct
11 Correct 221 ms 15704 KB Output is correct
12 Correct 129 ms 10884 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 360 ms 14960 KB Output is correct
2 Correct 355 ms 16568 KB Output is correct
3 Correct 386 ms 16544 KB Output is correct
4 Correct 248 ms 14520 KB Output is correct
5 Correct 289 ms 12724 KB Output is correct
6 Correct 148 ms 9660 KB Output is correct
7 Correct 356 ms 17868 KB Output is correct
8 Correct 350 ms 18868 KB Output is correct
9 Correct 335 ms 19232 KB Output is correct
10 Correct 244 ms 14216 KB Output is correct
11 Correct 221 ms 15704 KB Output is correct
12 Correct 129 ms 10884 KB Output is correct
13 Correct 441 ms 17896 KB Output is correct
14 Correct 435 ms 16984 KB Output is correct
15 Correct 351 ms 19128 KB Output is correct
16 Correct 317 ms 15480 KB Output is correct
17 Correct 366 ms 14144 KB Output is correct
18 Correct 163 ms 10300 KB Output is correct
19 Correct 468 ms 19676 KB Output is correct
20 Correct 457 ms 19444 KB Output is correct
21 Correct 454 ms 20044 KB Output is correct
22 Correct 238 ms 14448 KB Output is correct
23 Correct 227 ms 16056 KB Output is correct
24 Correct 132 ms 10888 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 10 ms 1576 KB Output is correct
8 Correct 10 ms 1372 KB Output is correct
9 Correct 10 ms 1372 KB Output is correct
10 Correct 8 ms 1116 KB Output is correct
11 Correct 9 ms 1116 KB Output is correct
12 Correct 4 ms 604 KB Output is correct
13 Correct 9 ms 1612 KB Output is correct
14 Correct 8 ms 1372 KB Output is correct
15 Correct 8 ms 1508 KB Output is correct
16 Correct 6 ms 860 KB Output is correct
17 Correct 7 ms 1116 KB Output is correct
18 Correct 3 ms 732 KB Output is correct
19 Correct 360 ms 14960 KB Output is correct
20 Correct 355 ms 16568 KB Output is correct
21 Correct 386 ms 16544 KB Output is correct
22 Correct 248 ms 14520 KB Output is correct
23 Correct 289 ms 12724 KB Output is correct
24 Correct 148 ms 9660 KB Output is correct
25 Correct 356 ms 17868 KB Output is correct
26 Correct 350 ms 18868 KB Output is correct
27 Correct 335 ms 19232 KB Output is correct
28 Correct 244 ms 14216 KB Output is correct
29 Correct 221 ms 15704 KB Output is correct
30 Correct 129 ms 10884 KB Output is correct
31 Correct 441 ms 17896 KB Output is correct
32 Correct 435 ms 16984 KB Output is correct
33 Correct 351 ms 19128 KB Output is correct
34 Correct 317 ms 15480 KB Output is correct
35 Correct 366 ms 14144 KB Output is correct
36 Correct 163 ms 10300 KB Output is correct
37 Correct 468 ms 19676 KB Output is correct
38 Correct 457 ms 19444 KB Output is correct
39 Correct 454 ms 20044 KB Output is correct
40 Correct 238 ms 14448 KB Output is correct
41 Correct 227 ms 16056 KB Output is correct
42 Correct 132 ms 10888 KB Output is correct
43 Correct 1004 ms 42708 KB Output is correct
44 Correct 1042 ms 43348 KB Output is correct
45 Correct 976 ms 42748 KB Output is correct
46 Correct 570 ms 30116 KB Output is correct
47 Correct 599 ms 30708 KB Output is correct
48 Correct 151 ms 9220 KB Output is correct
49 Correct 856 ms 43388 KB Output is correct
50 Correct 963 ms 42728 KB Output is correct
51 Correct 965 ms 43352 KB Output is correct
52 Correct 526 ms 25068 KB Output is correct
53 Correct 252 ms 22508 KB Output is correct