oj.uz

Submission #81810

# Submission time Handle Problem Language Result Execution time Memory
81810 2018-10-27T01:00:33 Z mra2322001 Schools (IZhO13_school) C++14
95 / 100
 167 ms 9688 KB 
#include <bits/stdc++.h>
#define f0(i, n) for(int i(0); i < (n); i++)
#define f1(i, n) for(int i(1); i <= n; i++)

using namespace std;
typedef long long ll;
const ll N = 300002;

int n, m, s, a[N], b[N], id[N];
long ans1[N], ans2[N];

int main(){
    ios_base::sync_with_stdio(0);

    cin >> n >> m >> s;
    f1(i, n){
        cin >> a[i] >> b[i];
        id[i] = i;
    }
    sort(id + 1, id + n + 1, [&](ll a1, ll a2){
         return a[a1] - b[a1] > a[a2] - b[a2];
    });
    priority_queue <int, vector <int>, greater <int> > q;
    f1(i, n){
        if(q.size() < m){
            ans1[i] = ans1[i - 1] + a[id[i]];
            q.push(a[id[i]]);
        }
        else{
            int x = q.top();
            q.pop();
            q.push(a[id[i]]);
            ans1[i] = ans1[i - 1] - x + a[id[i]];
        }
    }
    while(q.size()) q.pop();
    for(ll i = n; i >= 1; i--){
        if(q.size() < s){
            ans2[i] = ans2[i + 1] + b[id[i]];
            q.push(b[id[i]]);
        }
        else{
            int x = q.top();
            q.pop();
            q.push(b[id[i]]);
            ans2[i] = ans2[i + 1] - x + b[id[i]];
        }
    }
    f1(i, n) ans1[i] = max(ans1[i], ans1[i - 1]);
    for(ll i = n; i >= 1; i--) ans2[i] = max(ans2[i + 1], ans2[i]);
    ll res = LLONG_MIN;
    f1(i, n){
        if(i >= m && n - i >= s) res = max(res, ll(ans1[i] + ans2[i +1]));
    }
    cout << res;
}

Compilation message

school.cpp: In function 'int main()':
school.cpp:25:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if(q.size() < m){
            ~~~~~~~~~^~~
school.cpp:38:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if(q.size() < s){
            ~~~~~~~~~^~~

Subtask #1
95.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Runtime error 5 ms 764 KB Execution killed with signal 11 (could be triggered by violating memory limits)
3 Correct 2 ms 768 KB Output is correct
4 Correct 2 ms 768 KB Output is correct
5 Correct 2 ms 796 KB Output is correct
6 Correct 2 ms 856 KB Output is correct
7 Correct 4 ms 984 KB Output is correct
8 Correct 4 ms 1064 KB Output is correct
9 Correct 4 ms 1064 KB Output is correct
10 Correct 4 ms 1112 KB Output is correct
11 Correct 4 ms 1112 KB Output is correct
12 Correct 4 ms 1112 KB Output is correct
13 Correct 21 ms 2140 KB Output is correct
14 Correct 43 ms 3220 KB Output is correct
15 Correct 77 ms 5268 KB Output is correct
16 Correct 96 ms 6612 KB Output is correct
17 Correct 125 ms 7472 KB Output is correct
18 Correct 146 ms 8004 KB Output is correct
19 Correct 161 ms 8512 KB Output is correct
20 Correct 167 ms 9688 KB Output is correct