oj.uz

Submission #205347

# Submission time Handle Problem Language Result Execution time Memory
205347 2020-02-28T15:46:18 Z mode149256 Crocodile's Underground City (IOI11_crocodile) C++14
89 / 100
 882 ms 73852 KB 
/*input

*/
#include <bits/stdc++.h>
#include "crocodile.h"
using namespace std;

typedef long long ll;
typedef long double ld;
typedef complex<ld> cd;

typedef pair<int, int> pi;
typedef pair<ll, ll> pl;
typedef pair<ld, ld> pd;

typedef vector<int> vi;
typedef vector<vi> vii;
typedef vector<ld> vd;
typedef vector<ll> vl;
typedef vector<vl> vll;
typedef vector<pi> vpi;
typedef vector<vpi> vpii;
typedef vector<pl> vpl;
typedef vector<cd> vcd;
typedef vector<pd> vpd;
typedef vector<bool> vb;
typedef vector<vb> vbb;
typedef std::string str;
typedef std::vector<str> vs;

#define x first
#define y second
#define debug(...) cout<<"["<<#__VA_ARGS__<<": "<<__VA_ARGS__<<"]\n"

const int MOD = 1000000007;
const ll INF = std::numeric_limits<ll>::max();
const int MX = 100101;
const ld PI = 3.14159265358979323846264338327950288419716939937510582097494L;

template<typename T>
pair<T, T> operator+(const pair<T, T> &a, const pair<T, T> &b) { return pair<T, T>(a.x + b.x, a.y + b.y); }
template<typename T>
pair<T, T> operator-(const pair<T, T> &a, const pair<T, T> &b) { return pair<T, T>(a.x - b.x, a.y - b.y); }
template<typename T>
T operator*(const pair<T, T> &a, const pair<T, T> &b) { return (a.x * b.x + a.y * b.y); }
template<typename T>
T operator^(const pair<T, T> &a, const pair<T, T> &b) { return (a.x * b.y - a.y * b.x); }

template<typename T>
void print(vector<T> vec, string name = "") {
	cout << name;
	for (auto u : vec)
		cout << u << ' ';
	cout << '\n';
}

const ll DID = (ll)1e17;

int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{
	vector<vpl> edges(N);
	{
		for (int i = 0; i < M; ++i)
		{
			int a = R[i][0];
			int b = R[i][1];
			edges[a].emplace_back(b, L[i]);
			edges[b].emplace_back(a, L[i]);
		}
	}

	vll dis(N, vl(2, DID));
	priority_queue<pl, vpl, greater<pl>> pq;

	for (int i = 0; i < K; ++i)
	{
		int c = P[i];
		dis[c][0] = dis[c][1] = 0;
		pq.push({0, c});
	}

	while (pq.size()) {
		pl dab = pq.top(); pq.pop();

		int c = (int)dab.y;
		ll d = dab.x;
		if (d > dis[c][1]) continue;

		for (auto u : edges[c]) {
			ll newDis = d + u.y;
			if (newDis <= dis[u.x][0]) {
				dis[u.x][1] = dis[u.x][0];
				dis[u.x][0] = newDis;

				if (dis[u.x][1] != DID)
					pq.push({dis[u.x][1], u.x});
			} else if (newDis < dis[u.x][1]) {
				dis[u.x][1] = newDis;
				pq.push({dis[u.x][1], u.x});
			}
		}
	}

	return dis[0][1];
}


/* Look for:
* special cases (n=1?)
* overflow (ll vs int?)
* the exact constraints (multiple sets are too slow for n=10^6 :( )
* array bounds
*/

Subtask #1
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 380 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 6 ms 508 KB Output is correct
5 Correct 5 ms 504 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 504 KB Output is correct
8 Correct 5 ms 504 KB Output is correct

Subtask #2
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 380 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 6 ms 508 KB Output is correct
5 Correct 5 ms 504 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 504 KB Output is correct
8 Correct 5 ms 504 KB Output is correct
9 Correct 7 ms 632 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 6 ms 504 KB Output is correct
12 Correct 9 ms 888 KB Output is correct
13 Correct 8 ms 1016 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 504 KB Output is correct

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 380 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 6 ms 508 KB Output is correct
5 Correct 5 ms 504 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 504 KB Output is correct
8 Correct 5 ms 504 KB Output is correct
9 Correct 7 ms 632 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 6 ms 504 KB Output is correct
12 Correct 9 ms 888 KB Output is correct
13 Correct 8 ms 1016 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 504 KB Output is correct
16 Correct 632 ms 65344 KB Output is correct
17 Correct 110 ms 18552 KB Output is correct
18 Correct 139 ms 19832 KB Output is correct
19 Correct 882 ms 73852 KB Output is correct
20 Correct 361 ms 52716 KB Output is correct
21 Correct 53 ms 8056 KB Output is correct
22 Incorrect 388 ms 49400 KB Output isn't correct