oj.uz

Submission #756608

# Submission time Handle Problem Language Result Execution time Memory
756608 2023-06-12T01:36:50 Z maomao90 Crocodile's Underground City (IOI11_crocodile) C++17
100 / 100
 543 ms 47692 KB 
#include <bits/stdc++.h>
#include "crocodile.h"
using namespace std;

#define REP(i, j, k) for (int i = j; i < k; i++)
#define RREP(i, j, k) for (int i = j; i >= k; i--)

template <class T>
inline bool mnto(T &a, const T b) {return a > b ? a = b, 1 : 0;}
template <class T>
inline bool mxto(T &a, const T b) {return a < b ? a = b, 1 : 0;}

typedef long long ll;
typedef long double ld;
#define FI first
#define SE second
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
#define ALL(x) x.begin(), x.end()
#define SZ(x) (int) x.size()
#define pb push_back
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ii> vii;
typedef tuple<int, int, int> iii;
typedef vector<iii> viii;

#ifndef DEBUG
#define cerr if (0) cerr
#endif

const int INF = 1000000005;
const ll LINF = 9000000000000000005;
const int MAXN = 100005;

int n, m, k;
vii adj[MAXN];
ll mnd[MAXN], smnd[MAXN];
priority_queue<pll, vector<pll>, greater<pll>> pq;

bool relax(int u, ll x) {
	if (x < mnd[u]) {
		ll tmp = smnd[u];
		smnd[u] = mnd[u];
		mnd[u] = x;
		return smnd[u] != tmp;
	} else {
		return mnto(smnd[u], x);
	}
}

int travel_plan(int N, int M, int R[][2], int L[], int K, int P[]) {
	n = N; m = M; k = K;
	REP (i, 0, m) {
		adj[R[i][0]].pb({R[i][1], L[i]});
		adj[R[i][1]].pb({R[i][0], L[i]});
	}
	REP (i, 0, n) {
		mnd[i] = smnd[i] = LINF;
	}
	REP (i, 0, k) {
		mnd[P[i]] = smnd[P[i]] = 0;
		pq.push({0, P[i]});
	}
	while (!pq.empty()) {
		auto [d, u] = pq.top(); pq.pop();
		if (d != smnd[u]) {
			continue;
		}
		for (auto [v, w] : adj[u]) {
			if (relax(v, d + w)) {
				pq.push({smnd[v], v});
			}
		}
	}
	assert(smnd[0] != LINF);
	return smnd[0];
}

Subtask #1
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 2 ms 2772 KB Output is correct
5 Correct 2 ms 2772 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2772 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct

Subtask #2
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 2 ms 2772 KB Output is correct
5 Correct 2 ms 2772 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2772 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 3 ms 2900 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 3 ms 2692 KB Output is correct
12 Correct 5 ms 3028 KB Output is correct
13 Correct 4 ms 3028 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 2 ms 2772 KB Output is correct
5 Correct 2 ms 2772 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2772 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 3 ms 2900 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 3 ms 2692 KB Output is correct
12 Correct 5 ms 3028 KB Output is correct
13 Correct 4 ms 3028 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct
16 Correct 433 ms 42520 KB Output is correct
17 Correct 70 ms 11204 KB Output is correct
18 Correct 86 ms 12596 KB Output is correct
19 Correct 543 ms 47692 KB Output is correct
20 Correct 258 ms 36556 KB Output is correct
21 Correct 34 ms 6440 KB Output is correct
22 Correct 283 ms 32076 KB Output is correct