#include "swap.h"
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <iomanip>
#include <array>
#include <string>
#include <algorithm>
#include <cmath>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <vector>
#include <stack>
#include <queue>
#include <deque>
#include <bitset>
#include <list>
#include <iterator>
#include <numeric>
#include <complex>
#include <utility>
#include <random>
#include <cassert>
#include <fstream>
using namespace std;
mt19937 rnd(7069);
typedef int itn;
typedef long long ll;
typedef unsigned long long ull;
typedef double db;
typedef float fl;
typedef long double ld;
using vi = vector<int>;
using vll = vector<ll>;
using mii = map<int, int>;
using mll = map<ll, ll>;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
#define ff first
#define ss second
#define pub push_back
#define pob pop_back
#define puf push_front
#define pof pop_front
#define mpr make_pair
#define yes cout<<"Yes\n"
#define no cout<<"No\n"
#define all(x) (x).begin(), (x).end()
const int dx[8] = { -1, 0, 1, 0, -1, -1, 1, 1 };
const int dy[8] = { 0, -1, 0, 1, -1, 1, -1, 1 };
const int MAX = int(1e9 + 5);
const ll MAXL = ll(1e18) + 5ll;
const ll MOD = ll(1000000007);
const ll MOD2 = ll(998244353);
const int N = 100005;
int used[N];
vector<pii> g[N];
int n, m;
int l, r, mid, x, y, ans;
bool f = false;
void init(int N, int M, vi U, vi V, vi W) {
n = N, m = M;
for (int i = 0; i < m; ++i) {
g[U[i]].pub({ W[i], V[i] });
g[V[i]].pub({ W[i],U[i] });
}
for (int i = 0; i < n; ++i) {
sort(all(g[i]));
}
}
void dfs(int u, bool fx = false) {
if (u == y && fx) {
f = true;
}
used[u] = 1;
int dep = upper_bound(all(g[u]), mpr(mid, MAX)) - g[u].begin();
for (auto to : g[u]) {
if (to.ff > mid) break;
if (used[to.ss] && to.ss == y) {
f = true;
continue;
}
if (used[to.ss]) continue;
if (u == x) {
dfs(to.ss, fx);
continue;
}
if (dep >= 3) {
dfs(to.ss, true);
continue;
}
dfs(to.ss, fx);
}
}
int getMinimumFuelCapacity(int X, int Y) {
x = X, y = Y;
l = 0, r = MAX;
ans = -1;
while (l <= r) {
mid = (l + r) / 2;
f = false;
for (int i = 0; i < n; ++i) {
used[i] = 0;
}
dfs(x);
if (f) {
r = mid - 1;
ans = mid;
}
else {
l = mid + 1;
}
}
return ans;
}
/*
1.
5 6
0 1 4
0 2 4
1 2 1
1 3 2
1 4 10
2 3 3
3
1 2
2 4
0 1
2.
3 2
0 1 5
0 2 5
1
1 2
answers
1.
3
10
4
2.
-1
*/
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 3 |
Incorrect |
1 ms |
2652 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 3 |
Execution timed out |
2033 ms |
13992 KB |
Time limit exceeded |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 3 |
Incorrect |
1 ms |
2652 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 3 |
Incorrect |
1 ms |
2652 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 3 |
Incorrect |
1 ms |
2652 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 3 |
Incorrect |
1 ms |
2652 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
