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Submission #406805

# Submission time Handle Problem Language Result Execution time Memory
406805 2021-05-18T05:17:19 Z Maqsut_03 Swapping Cities (APIO20_swap) C++14
13 / 100
 158 ms 15288 KB 
#include "swap.h"
#include <iomanip>
#include <algorithm>
#include <numeric>
#include <functional>
#include <typeinfo>

#include <vector>
#include <array>
#include <valarray>
#include <queue>
#include <stack>
#include <set>
#include <map>
 
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <cassert>
#define ll int
#define pl pair<ll, ll>
#define llv vector<ll>
#define pv vector<pl>
#define pb push_back
#define ppb(x, y) push_back({x, y})
#define ff first
#define ss second
#define sz size()
using namespace std;
const int NN = 2 * 1e5 + 3, MOD = 1e9 + 7;

pl u0[NN];
pv v[NN];
ll n, m, k, d, u[NN];
bool f, f1, f2, f3;

void init(int N, int M, vector<int> U, vector<int> V, vector<int> W) 
{
	n = N;
	m = M;
	for (int i=0; i<m; i++)
	{
		v[V[i]].ppb(U[i], W[i]);
		v[U[i]].ppb(V[i], W[i]);
		k = max(k, W[i]);
		
		u0[i] = {W[i], V[i]};
	}
	sort(u0, u0 + m);
	for (int i=0; i<m; i++) u[u0[i].ss] = u0[i].ff;
	d = u0[2].ff;
	int p = 0, q = 0;
	for (int i=0; i<n; i++)
	{
		if (v[i].sz == 1) q++;
		if (v[i].sz == 2) p++;
	}
	if (q == 2 && q + p == n) f = 1;
	
	if (m == n - 1 && v[0].sz == m) f1 = 1;
	f2 = 1;
	for (int i=0; i<n; i++)
	{
		if(v[i].sz != 2)
		{
			f2 = 0;
			break;
		}
	}
	return ;
}


int solve(int x, int y)
{
	ll dis[NN], val[NN], mn = MOD, mx;
	queue<int> q;
	bool u[NN], u0[NN];
	
	memset(val, -1, sizeof(val));
	q.push(x);
	dis[x] = -1;
    val[x] = 0;
		
	while (q.sz > 0)
	{
		ll a = q.front();
		u0[a] = 1;
		q.pop();

		for (auto i:v[a])
			if (!u0[i.ff])
			{
				if (val[i.ff] == -1)
				{
					val[i.ff] = max(val[a], i.ss);
					dis[i.ff] = a;
					q.push(i.ff);
				}
				else 
					if (max(i.ss, val[a]) < val[i.ff])
					{
						val[i.ff] = max(i.ss, val[a]);
						dis[i.ff] = a;
					}
			}
	}
	mx = val[y];
	while (dis[y] != -1) 
	{
     	u[y] = 1;
		y = dis[y];
		if (dis[y] != -1) q.push(y);
	}
	u[x] = 1;
	while (q.sz > 0)
	{
		int i = q.front();
		q.pop();
		for (auto j:v[i])
			if (!u[j.ff]) mn = min(mn, j.ss);
	}
	
	return max(mn, mx);
}


int getMinimumFuelCapacity(int X, int Y) 
{
	if (f) return -1;
	if (f2) return k;
	if (f1) return max({d, u[X], u[Y]});
	return 1;
	return solve(X, Y);
}

Compilation message

swap.cpp: In function 'void init(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
swap.cpp:61:28: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   61 |  if (m == n - 1 && v[0].sz == m) f1 = 1;
      |                    ~~~~~~~~^~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 3 ms 4984 KB Output is correct
4 Correct 4 ms 4888 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 5 ms 4940 KB Output is correct
9 Correct 53 ms 10268 KB Output is correct
10 Correct 60 ms 11240 KB Output is correct
11 Correct 59 ms 11228 KB Output is correct
12 Correct 66 ms 11540 KB Output is correct
13 Correct 89 ms 11540 KB Output is correct
14 Correct 58 ms 10280 KB Output is correct
15 Correct 125 ms 13112 KB Output is correct
16 Correct 118 ms 13052 KB Output is correct
17 Correct 158 ms 13440 KB Output is correct
18 Correct 123 ms 13296 KB Output is correct
19 Correct 62 ms 9500 KB Output is correct
20 Correct 135 ms 14320 KB Output is correct
21 Correct 124 ms 14332 KB Output is correct
22 Correct 133 ms 14740 KB Output is correct
23 Correct 127 ms 14740 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 118 ms 14996 KB Output is correct
4 Correct 112 ms 15236 KB Output is correct
5 Correct 125 ms 15244 KB Output is correct
6 Correct 113 ms 15092 KB Output is correct
7 Correct 117 ms 15288 KB Output is correct
8 Correct 127 ms 14988 KB Output is correct
9 Correct 118 ms 15160 KB Output is correct
10 Correct 116 ms 15024 KB Output is correct

Subtask #3
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 3 ms 4984 KB Output is correct
4 Correct 4 ms 4888 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 5 ms 4940 KB Output is correct
9 Incorrect 3 ms 4940 KB Output isn't correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 4940 KB Output isn't correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 3 ms 4984 KB Output is correct
4 Correct 4 ms 4888 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 5 ms 4940 KB Output is correct
9 Correct 53 ms 10268 KB Output is correct
10 Correct 60 ms 11240 KB Output is correct
11 Correct 59 ms 11228 KB Output is correct
12 Correct 66 ms 11540 KB Output is correct
13 Correct 89 ms 11540 KB Output is correct
14 Correct 58 ms 10280 KB Output is correct
15 Correct 125 ms 13112 KB Output is correct
16 Correct 118 ms 13052 KB Output is correct
17 Correct 158 ms 13440 KB Output is correct
18 Correct 123 ms 13296 KB Output is correct
19 Correct 118 ms 14996 KB Output is correct
20 Correct 112 ms 15236 KB Output is correct
21 Correct 125 ms 15244 KB Output is correct
22 Correct 113 ms 15092 KB Output is correct
23 Correct 117 ms 15288 KB Output is correct
24 Correct 127 ms 14988 KB Output is correct
25 Correct 118 ms 15160 KB Output is correct
26 Correct 116 ms 15024 KB Output is correct
27 Incorrect 4 ms 4940 KB Output isn't correct
28 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 4940 KB Output isn't correct