Submission #296022

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
296022	2020-09-10 07:48:07	Alexa2001	Swapping Cities (APIO20_swap)	C++17	13 / 100	187 ms	16728 KiB

swap

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
const int inf = 1e9 + 5;
const int Nmax = 1e5 + 5;
int rang[Nmax], t[Nmax], A[Nmax], B[Nmax], up[Nmax], good[Nmax], level[Nmax];
bool chain[Nmax];
int n, m;
vector<int> v[Nmax];
int boss(int x)
{
    if(x == t[x]) return x;
    return t[x] = boss(t[x]);
}
bool endpoints(int x, int y, int a, int b)
{
    //assert(boss(a) == x && boss(b) == y);
    return (A[x] == a || B[x] == a) && (A[y] == b || B[y] == b);
}
void combine_chains(int x, int y, int a, int b)
{
    B[y] = (A[y] == b ? B[y] : A[y]);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

• Subtask 1: 6 / 6
• Subtask 2: 7 / 7
• Subtask 3: 0 / 17
• Subtask 4: 0 / 20
• Subtask 5: 0 / 23
• Subtask 6: 0 / 27