oj.uz

Submission #676393

# Submission time Handle Problem Language Result Execution time Memory
676393 2022-12-30T15:41:18 Z vjudge1 Schools (IZhO13_school) C++17
95 / 100
 126 ms 16528 KB 
#include <bits/stdc++.h>
#define oo 1e18
#define ii pair<int,int>
using namespace std;
long long id[300010],a[300010],b[300010],x,y,n,f[300010],g[300010];
priority_queue<long long,vector<long long>,greater<long long> >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);
    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:29:23: warning: comparison of integer expressions of different signedness: 'std::priority_queue<long long int, std::vector<long long int>, std::greater<long long int> >::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   29 |         if (pq.size() > y)
      |             ~~~~~~~~~~^~~
school.cpp:43:23: warning: comparison of integer expressions of different signedness: 'std::priority_queue<long long int, std::vector<long long int>, std::greater<long long int> >::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   43 |         if (pq.size() > x)
      |             ~~~~~~~~~~^~~

Subtask #1
95.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Incorrect 0 ms 340 KB Output isn't correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 2 ms 596 KB Output is correct
8 Correct 2 ms 596 KB Output is correct
9 Correct 2 ms 596 KB Output is correct
10 Correct 2 ms 596 KB Output is correct
11 Correct 2 ms 596 KB Output is correct
12 Correct 2 ms 596 KB Output is correct
13 Correct 13 ms 2520 KB Output is correct
14 Correct 32 ms 4460 KB Output is correct
15 Correct 57 ms 8392 KB Output is correct
16 Correct 90 ms 10592 KB Output is correct
17 Correct 101 ms 12360 KB Output is correct
18 Correct 101 ms 13328 KB Output is correct
19 Correct 112 ms 14344 KB Output is correct
20 Correct 126 ms 16528 KB Output is correct