oj.uz

Submission #882936

# Submission time Handle Problem Language Result Execution time Memory
882936 2023-12-04T08:01:02 Z NotLinux Palembang Bridges (APIO15_bridge) C++17
100 / 100
 109 ms 5604 KB 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
// PUT IT BEFORE THE INCLUDE
#include <bits/stdc++.h>
using namespace std;
const long long inf = 1e18 + 7;
template<class T, class Container = vector<T>, class Compare = less<T>>
struct PriorityQueue {
  int sz = 0;
  priority_queue<T, Container, Compare> pq, del;
 
  void emplace(const T &val) { pq.emplace(val); ++sz; }
  void erase(const T &val) { del.emplace(val); --sz; }
  void pop() { erase(top()); }
  T top() {
    while (!del.empty() && !pq.empty() && del.top() == pq.top()) del.pop(), pq.pop();
    return pq.top();
  }
  int size() const {return sz;}
};
 
template<class T>
struct MedianHeap {
	long long sumlo = 0 , sumhi = 0;
  PriorityQueue<T> lo;
  PriorityQueue<T, vector<T>, greater<T>> hi; 
 
  void Fix() {
    while (hi.size() > lo.size()){
    	sumlo += hi.top();
    	sumhi -= hi.top();
    	lo.emplace(hi.top());
    	hi.pop();
    }
    while (lo.size() > hi.size() + 1){
    	sumhi += lo.top();
    	sumlo -= lo.top();
    	hi.emplace(lo.top());
    	lo.pop();
    }
  }
  
  void emplace(const T &val) {
    if (lo.size() == 0 || val <= lo.top()){
    	sumlo += val;
    	lo.emplace(val);
    }
    else {
    	sumhi += val;
    	hi.emplace(val);
    }
    Fix();
  }
 
  void erase(const T &val) {
    if (lo.size() && val <= lo.top()){
    	sumlo -= val;
    	lo.erase(val);
    }
    else {
    	sumhi -= val;
    	hi.erase(val);
    }
    Fix();
  }
  long long get_ans(){
  	return (1ll * lo.top() * lo.size() - sumlo) + (sumhi - 1ll * lo.top() * hi.size());
  }
  T top() { return lo.top(); }
};
bool cmp(array < int , 3 > const& a , array < int , 3 > const& b){
	return a[0] < b[0];
}
void solve(){
	int k,n;
	long long ans0 = 0;
	cin >> k >> n;
	vector < array < int , 3 > > v2;
	for(int i = 0;i<n;i++){
		char c1,c2;
		int p1,p2;
		cin >> c1 >> p1 >> c2 >> p2;
		if(c1 == c2){
			ans0 += abs(p1 - p2);
		}
		else{
			v2.push_back({p1 + p2 , p1 , p2});
		}
	}
	sort(v2.begin() , v2.end() , cmp);
	MedianHeap<int> med1 , med2;
	for(auto itr : v2){
		med2.emplace(itr[1]);
		med2.emplace(itr[2]);
	}
	long long ans1 = inf;
	if(v2.size()){
		if(k == 1){
			ans1 = med2.get_ans();
		}
		else{
			for(auto itr : v2){
				med2.erase(itr[1]);
				med2.erase(itr[2]);
				med1.emplace(itr[1]);
				med1.emplace(itr[2]);
				ans1 = min(ans1 , med1.get_ans() + med2.get_ans());
			}
		}
	}
	else ans1 = 0;
	cout << ans0 + ans1 + v2.size() << '\n';
}
signed main(){
	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	int testcase = 1;//cin >> testcase;
	while(testcase--)solve();
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 600 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 460 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 20 ms 3292 KB Output is correct
13 Correct 40 ms 4492 KB Output is correct
14 Correct 31 ms 3524 KB Output is correct
15 Correct 23 ms 3016 KB Output is correct
16 Correct 23 ms 4040 KB Output is correct
17 Correct 31 ms 4536 KB Output is correct
18 Correct 32 ms 4032 KB Output is correct
19 Correct 36 ms 4560 KB Output is correct
20 Correct 27 ms 4300 KB Output is correct
21 Correct 36 ms 4392 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct

Subtask #5
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 600 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 47 ms 4804 KB Output is correct
26 Correct 86 ms 5508 KB Output is correct
27 Correct 106 ms 5312 KB Output is correct
28 Correct 109 ms 5312 KB Output is correct
29 Correct 109 ms 5320 KB Output is correct
30 Correct 59 ms 3016 KB Output is correct
31 Correct 40 ms 4176 KB Output is correct
32 Correct 74 ms 5572 KB Output is correct
33 Correct 80 ms 4548 KB Output is correct
34 Correct 80 ms 5604 KB Output is correct
35 Correct 54 ms 5084 KB Output is correct
36 Correct 79 ms 5524 KB Output is correct
37 Correct 28 ms 4148 KB Output is correct