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Submission #406804

# Submission time Handle Problem Language Result Execution time Memory
406804 2021-05-18T05:16:31 Z Maqsut_03 Swapping Cities (APIO20_swap) C++14
13 / 100
 150 ms 15336 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 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 4 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 4 ms 4980 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 5 ms 4940 KB Output is correct
8 Correct 4 ms 5036 KB Output is correct
9 Correct 52 ms 10164 KB Output is correct
10 Correct 63 ms 11332 KB Output is correct
11 Correct 62 ms 11224 KB Output is correct
12 Correct 83 ms 11532 KB Output is correct
13 Correct 88 ms 11544 KB Output is correct
14 Correct 69 ms 10268 KB Output is correct
15 Correct 140 ms 13180 KB Output is correct
16 Correct 121 ms 13040 KB Output is correct
17 Correct 128 ms 13320 KB Output is correct
18 Correct 126 ms 13304 KB Output is correct
19 Correct 62 ms 9412 KB Output is correct
20 Correct 125 ms 14460 KB Output is correct
21 Correct 125 ms 14336 KB Output is correct
22 Correct 127 ms 14700 KB Output is correct
23 Correct 135 ms 14716 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 116 ms 14956 KB Output is correct
4 Correct 118 ms 15216 KB Output is correct
5 Correct 150 ms 15336 KB Output is correct
6 Correct 115 ms 15136 KB Output is correct
7 Correct 134 ms 15324 KB Output is correct
8 Correct 114 ms 14952 KB Output is correct
9 Correct 150 ms 15084 KB Output is correct
10 Correct 145 ms 14964 KB Output is correct

Subtask #3
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 4 ms 4980 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 5 ms 4940 KB Output is correct
8 Correct 4 ms 5036 KB Output is correct
9 Incorrect 5 ms 6936 KB Output isn't correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 6936 KB Output isn't correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 4 ms 4980 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 5 ms 4940 KB Output is correct
8 Correct 4 ms 5036 KB Output is correct
9 Correct 52 ms 10164 KB Output is correct
10 Correct 63 ms 11332 KB Output is correct
11 Correct 62 ms 11224 KB Output is correct
12 Correct 83 ms 11532 KB Output is correct
13 Correct 88 ms 11544 KB Output is correct
14 Correct 69 ms 10268 KB Output is correct
15 Correct 140 ms 13180 KB Output is correct
16 Correct 121 ms 13040 KB Output is correct
17 Correct 128 ms 13320 KB Output is correct
18 Correct 126 ms 13304 KB Output is correct
19 Correct 116 ms 14956 KB Output is correct
20 Correct 118 ms 15216 KB Output is correct
21 Correct 150 ms 15336 KB Output is correct
22 Correct 115 ms 15136 KB Output is correct
23 Correct 134 ms 15324 KB Output is correct
24 Correct 114 ms 14952 KB Output is correct
25 Correct 150 ms 15084 KB Output is correct
26 Correct 145 ms 14964 KB Output is correct
27 Incorrect 5 ms 6988 KB Output isn't correct
28 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 6936 KB Output isn't correct