oj.uz

Submission #882935

# Submission time Handle Problem Language Result Execution time Memory
882935 2023-12-04T07:59:34 Z NotLinux Palembang Bridges (APIO15_bridge) C++17
78 / 100
 115 ms 7872 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(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());
		}
	}
	cout << ans0 + (ans1 == inf ? 0ll : 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
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 348 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 604 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 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 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 600 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 1 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 500 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 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 348 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 348 KB Output is correct
23 Correct 1 ms 344 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 1 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 1 ms 344 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 456 KB Output is correct
11 Correct 1 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 344 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 344 KB Output is correct
18 Correct 1 ms 344 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 348 KB Output is correct
23 Correct 1 ms 464 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 42 ms 5044 KB Output is correct
26 Correct 85 ms 6480 KB Output is correct
27 Correct 113 ms 7212 KB Output is correct
28 Correct 115 ms 7616 KB Output is correct
29 Correct 109 ms 7620 KB Output is correct
30 Correct 56 ms 4160 KB Output is correct
31 Correct 36 ms 5828 KB Output is correct
32 Correct 78 ms 7872 KB Output is correct
33 Correct 79 ms 6336 KB Output is correct
34 Correct 82 ms 7832 KB Output is correct
35 Correct 54 ms 7060 KB Output is correct
36 Correct 87 ms 7768 KB Output is correct
37 Correct 29 ms 4852 KB Output is correct