Submission #750157

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
750157	2023-05-29 07:21:56	puppy	Cake 3 (JOI19_cake3)	C++17	100 / 100	3749 ms	21304 KiB

cake3

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#include <iostream>
#include <set>
#include <algorithm>
#include <utility>
using namespace std;
using ll = long long;
const ll inf = 1e18;
pair<ll, int> arr[200005];
int N, M;
int l, r;
set<pair<ll, int>> inc, exc;
ll cur = 0;
void in(int i)
{
    inc.insert(make_pair(arr[i].first, i));
    cur += arr[i].first;
    cur -= (*inc.begin()).first;
    exc.insert(*inc.begin());
    inc.erase(inc.begin());
}
void out(int i)
{
    auto it = inc.find(make_pair(arr[i].first, i));
    if (it != inc.end()) {
        cur -= arr[i].first;
        inc.erase(it);
        cur += (*--exc.end()).first;
        inc.insert(*--exc.end());
        exc.erase(--exc.end());
    }
 
 
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Compilation message (stderr)

cake3.cpp: In function 'void dnc(int, int, int, int, bool)':
cake3.cpp:46:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   46 |     int m = s + e >> 1;
      |             ~~^~~

• Subtask 1: 5 / 5
• Subtask 2: 19 / 19
• Subtask 3: 76 / 76