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Submission #1042406

# Submission time Handle Problem Language Result Execution time Memory
1042406 2024-08-03T03:52:35 Z Math4Life2020 Palembang Bridges (APIO15_bridge) C++17
22 / 100
 49 ms 7372 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long; using pii = pair<ll,ll>;

int main() {
	ios_base::sync_with_stdio(false); cin.tie(0);
	ll K,N; cin >> K >> N;
	vector<pii> v;
	ll ans = 0;
	for (ll i=0;i<N;i++) {
		string p,q; ll s,t;
		cin >> p >> s >> q >> t;
		if (p==q) {
			ans += abs(s-t);
		} else {
			ans++;
			v.push_back({min(s,t),max(s,t)});
		}
	}
	vector<ll> v2;
	for (pii p0: v) {
		v2.push_back(p0.first);
		v2.push_back(p0.second);
	}
	sort(v2.begin(),v2.end());
	if (K==1) {
		for (ll x: v2) {
			ans += abs(x-v2[v2.size()/2]);
		}
		cout << ans; exit(0);
	}
	ll emin = 1e18;
	for (ll a: v2) {
		ll ec = 0;
		priority_queue<pii> PQ; //-pos,sign(+1/-1)
		for (pii p0: v) {
			ll x = p0.first; ll y = p0.second;
			ec += abs(a-x)+abs(a-y);
			if (a<x || a>y) {
				PQ.push({-a,-1});
				PQ.push({-x,1});
				PQ.push({-y,1});
				PQ.push({-x-y+a,-1});
			}
		}
		ll xmin = 1e18;
		ll sp=0; ll sn=0;
		while (!PQ.empty()) {
			pii p0 = PQ.top(); PQ.pop();
			ll p = -p0.first; ll n = p0.second;
			xmin = min(xmin,(p*sn-sp));
			sp += p*n; sn += n;
		}
		emin = min(emin,2*xmin+ec);
	}
	cout << (emin+ans);
}

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 0 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 1 ms 348 KB Output is correct
7 Correct 1 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 1 ms 344 KB Output is correct
11 Correct 1 ms 344 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 1 ms 348 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 468 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 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 18 ms 5652 KB Output is correct
13 Correct 49 ms 7372 KB Output is correct
14 Correct 37 ms 5952 KB Output is correct
15 Correct 21 ms 4076 KB Output is correct
16 Correct 21 ms 6608 KB Output is correct
17 Correct 23 ms 7372 KB Output is correct
18 Correct 26 ms 6836 KB Output is correct
19 Correct 38 ms 7212 KB Output is correct
20 Correct 29 ms 6868 KB Output is correct
21 Correct 30 ms 7120 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -