oj.uz

Submission #199133

# Submission time Handle Problem Language Result Execution time Memory
199133 2020-01-29T13:42:54 Z godwind Crocodile's Underground City (IOI11_crocodile) C++14
100 / 100
 1070 ms 43420 KB 
// #include "grader.h"
// O O O O O O O O O O O O O O O OO O OO O OO O O O TTCH O TTTCH O TTTCH O O O O
#pragma GCC optimize("Ofast")
#pragma GCC optimize("no-stack-protector")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("fast-math")
#pragma GCC target("sse,sse2,sse3,ssse3,popcnt,abm,mmx")
#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <stdio.h>
#include <cstdio>
#include <math.h>
#include <cmath>
#include <string>
#include <cstring>
#include <queue>
#include <deque>
#include <random>
#include <iomanip>
#include <bitset>
#include <cassert>
 
using namespace std;
 
#define y1 y11
#define double long double
#define less less228
#define left left228
#define right right228
#define list list228
 
 
 
template<typename T> void uin(T &a, T b) {
    if (b < a) a = b;
}
template<typename T> void uax(T &a, T b) {
    if (b > a) a = b;
}
 
const int N = 100 * 1000 + 228;
const int INF = 1e9 + 228;
 
int n, m, k;
vector< pair<int, int> > g[N];
 
int mn1[N], mn2[N];
int dp[N];
 
bool tet = 0;
 
bool relax(int i, int x) {
	tet = 0;
	if (x < mn1[i]) {
		if (mn1[i] < mn2[i]) tet = 1;
		mn2[i] = mn1[i];
		mn1[i] = x;
	} else if (x < mn2[i]) {
		mn2[i] = x;
		tet = 1;
	}
	return tet;
}
 
int travel_plan(int nn, int mm, int R[][2], int L[], int K, int P[]) {
	n = nn;
	m = mm;
	k = K;
	for (int i = 0; i < m; ++i) {
		g[R[i][0]].emplace_back(R[i][1], L[i]);
		g[R[i][1]].emplace_back(R[i][0], L[i]);
	}
	for (int i = 0; i < n; ++i) {
		mn1[i] = mn2[i] = INF;
	}
	set< pair<int, int> > q;
	for (int i = 0; i < k; ++i) {
		mn1[P[i]] = mn2[P[i]] = 0;
		q.insert({0, P[i]});
	}
	while (!q.empty()) {
		pair<int, int> f = *q.begin();
		q.erase(q.begin());
		int v = f.second;
		int to, w;
		for (pair<int, int> go : g[v]) {
			to = go.first, w = go.second;
			int a = mn2[to];
			if (relax(to, mn2[v] + w)) {
				q.erase({a, to});
				q.insert({mn2[to], to});
			}
		}
	}
	if (mn2[0] == INF) mn2[0] = -1;
	return mn2[0];
}
 
// int r[100][2], l[1000], p[1000];
 
// signed main() {
// 	cin >> n >> m >> k;
// 	for (int i = 0; i < m; ++i) {
// 		cin >> r[i][0] >> r[i][1] >> l[i];
// 	}
// 	for (int i = 0; i < k; ++i) {
// 		cin >> p[i];
// 	}
// 	cout << travel_plan(n, m, r, l, k, p) << '\n';
// 	return 0;
// }

Subtask #1
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2680 KB Output is correct
2 Correct 6 ms 2680 KB Output is correct
3 Correct 7 ms 2680 KB Output is correct
4 Correct 7 ms 2808 KB Output is correct
5 Correct 7 ms 2808 KB Output is correct
6 Correct 7 ms 2808 KB Output is correct
7 Correct 7 ms 2808 KB Output is correct
8 Correct 7 ms 2808 KB Output is correct

Subtask #2
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2680 KB Output is correct
2 Correct 6 ms 2680 KB Output is correct
3 Correct 7 ms 2680 KB Output is correct
4 Correct 7 ms 2808 KB Output is correct
5 Correct 7 ms 2808 KB Output is correct
6 Correct 7 ms 2808 KB Output is correct
7 Correct 7 ms 2808 KB Output is correct
8 Correct 7 ms 2808 KB Output is correct
9 Correct 9 ms 2936 KB Output is correct
10 Correct 7 ms 2680 KB Output is correct
11 Correct 9 ms 2808 KB Output is correct
12 Correct 10 ms 3192 KB Output is correct
13 Correct 10 ms 3192 KB Output is correct
14 Correct 8 ms 2808 KB Output is correct
15 Correct 8 ms 2808 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2680 KB Output is correct
2 Correct 6 ms 2680 KB Output is correct
3 Correct 7 ms 2680 KB Output is correct
4 Correct 7 ms 2808 KB Output is correct
5 Correct 7 ms 2808 KB Output is correct
6 Correct 7 ms 2808 KB Output is correct
7 Correct 7 ms 2808 KB Output is correct
8 Correct 7 ms 2808 KB Output is correct
9 Correct 9 ms 2936 KB Output is correct
10 Correct 7 ms 2680 KB Output is correct
11 Correct 9 ms 2808 KB Output is correct
12 Correct 10 ms 3192 KB Output is correct
13 Correct 10 ms 3192 KB Output is correct
14 Correct 8 ms 2808 KB Output is correct
15 Correct 8 ms 2808 KB Output is correct
16 Correct 725 ms 40184 KB Output is correct
17 Correct 104 ms 10488 KB Output is correct
18 Correct 139 ms 11768 KB Output is correct
19 Correct 1070 ms 43420 KB Output is correct
20 Correct 360 ms 36728 KB Output is correct
21 Correct 55 ms 6264 KB Output is correct
22 Correct 395 ms 31736 KB Output is correct