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Submission #1042398

# Submission time Handle Problem Language Result Execution time Memory
1042398 2024-08-03T03:45:59 Z Math4Life2020 Palembang Bridges (APIO15_bridge) C++17
22 / 100
 48 ms 7416 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);
	}
	if (K==1) {
		sort(v2.begin(),v2.end());
		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 1 ms 356 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 512 KB Output is correct
6 Correct 0 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 348 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 488 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 404 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 0 ms 348 KB Output is correct
12 Correct 19 ms 5844 KB Output is correct
13 Correct 31 ms 7372 KB Output is correct
14 Correct 27 ms 6096 KB Output is correct
15 Correct 23 ms 4044 KB Output is correct
16 Correct 20 ms 6612 KB Output is correct
17 Correct 23 ms 7416 KB Output is correct
18 Correct 25 ms 6864 KB Output is correct
19 Correct 48 ms 7368 KB Output is correct
20 Correct 24 ms 6856 KB Output is correct
21 Correct 47 ms 7040 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 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 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -