oj.uz

Submission #676391

# Submission time Handle Problem Language Result Execution time Memory
676391 2022-12-30T15:33:35 Z vjudge1 Schools (IZhO13_school) C++17
95 / 100
 114 ms 9112 KB 
#include <bits/stdc++.h>
#define oo 1e18
#define ii pair<int,int>
using namespace std;
int id[1000010],a[1000010],b[1000010],x,y,n;
long long f[1000010],g[1000010];
priority_queue<int,vector<int>,greater<int> >pq;
bool cmp(int i,int j)
{
    return a[i] - b[i] < a[j] - b[j];
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    //freopen("invest.inp","r",stdin);
    //freopen("invest.out","w",stdout);
    cin >> n >> x >> y;
    for (int i = 1;i <= n;i++)
    {
        cin >> a[i] >> b[i];
    }
    for (int i = 1;i <= n;i++)
    {
        id[i] = i;
    }
    sort(id + 1,id + n + 1,cmp);
    for (int i = 1;i <= n;i++)
    {
        f[i] = f[i - 1] + b[id[i]];
        pq.push(b[id[i]]);
        if (pq.size() > y)
        {
            f[i] -= pq.top();
            pq.pop();
        }
    }
    while (pq.size() > 0)
    {
        pq.pop();
    }
    for (int i = n;i >= 1;i--)
    {
        g[i] = g[i + 1] + a[id[i]];
        pq.push(a[id[i]]);
        if (pq.size() > x)
        {
            g[i] -= pq.top();
            pq.pop();
        }
    }
    long long res = 0;
    for (int i = 1;i <= n;i++)
    {
        if ((i >= y) && (n - i >= x))
        {
            res = max(res,f[i] + g[i + 1]);
        }
    }
    cout << res;
    return 0;
}

Compilation message

school.cpp: In function 'int main()':
school.cpp:32:23: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   32 |         if (pq.size() > y)
      |             ~~~~~~~~~~^~~
school.cpp:46:23: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   46 |         if (pq.size() > x)
      |             ~~~~~~~~~~^~~

Subtask #1
95.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Incorrect 1 ms 340 KB Output isn't correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 2 ms 468 KB Output is correct
8 Correct 2 ms 468 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 11 ms 1492 KB Output is correct
14 Correct 34 ms 2580 KB Output is correct
15 Correct 53 ms 4748 KB Output is correct
16 Correct 79 ms 5896 KB Output is correct
17 Correct 83 ms 6860 KB Output is correct
18 Correct 90 ms 7316 KB Output is correct
19 Correct 99 ms 7948 KB Output is correct
20 Correct 114 ms 9112 KB Output is correct