oj.uz

Submission #81808

# Submission time Handle Problem Language Result Execution time Memory
81808 2018-10-27T00:57:03 Z mra2322001 Schools (IZhO13_school) C++14
95 / 100
 174 ms 13496 KB 
#include <bits/stdc++.h>
#define f0(i, n) for(ll i(0); i < (n); i++)
#define f1(i, n) for(ll i(1); i <= n; i++)

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

ll n, m, s, a[N], b[N], id[N], 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 <ll, vector <ll>, greater <ll> > q;
    f1(i, n){
        if(q.size() < m){
            ans1[i] = ans1[i - 1] + a[id[i]];
            q.push(a[id[i]]);
        }
        else{
            ll 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{
            ll 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, ans1[i] + ans2[i +1]);
    }
    cout << res;
}

Compilation message

school.cpp: In function 'int main()':
school.cpp:24:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if(q.size() < m){
            ~~~~~~~~~^~~
school.cpp:37:21: 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 3 ms 892 KB Execution killed with signal 11 (could be triggered by violating memory limits)
3 Correct 2 ms 892 KB Output is correct
4 Correct 2 ms 892 KB Output is correct
5 Correct 2 ms 892 KB Output is correct
6 Correct 2 ms 892 KB Output is correct
7 Correct 4 ms 976 KB Output is correct
8 Correct 5 ms 1012 KB Output is correct
9 Correct 5 ms 1020 KB Output is correct
10 Correct 4 ms 1036 KB Output is correct
11 Correct 5 ms 1036 KB Output is correct
12 Correct 4 ms 1036 KB Output is correct
13 Correct 23 ms 2572 KB Output is correct
14 Correct 56 ms 4152 KB Output is correct
15 Correct 82 ms 7096 KB Output is correct
16 Correct 99 ms 9648 KB Output is correct
17 Correct 136 ms 10268 KB Output is correct
18 Correct 155 ms 11052 KB Output is correct
19 Correct 166 ms 11952 KB Output is correct
20 Correct 174 ms 13496 KB Output is correct