Submission #736574

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
736574	2023-05-06 00:55:13	horiseun	Parachute rings (IOI12_rings)	C++17	52 / 100	4042 ms	71944 KiB

rings

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 <iostream>
#include <vector>
#include <tuple>
#include <algorithm>
using namespace std;
#define f first
#define s second
int n, cycsz;
bool nne;
vector<int> adj[1000005];
vector<pair<int, int>> edges;
struct UnionFind1 {
    int rt, par[1000005], deg[1000005];
    bool vld;
    int find(int x) {
        return par[x] == x ? x : par[x] = find(par[x]);
    }
    void merge(int x, int y) {
        if (!vld || x == rt || y == rt) return;
        int px = find(x), py = find(y);
        if (deg[x] == 2 || deg[y] == 2 || px == py) {
            vld = false;
            return;
        }
        deg[x]++;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

rings.cpp: In function 'int CountCritical()':
rings.cpp:76:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<UnionFind1>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |         for (int i = 0; i < uf.size(); i++) {
      |                         ~~^~~~~~~~~~~
rings.cpp: In function 'void Link(int, int)':
rings.cpp:87:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<UnionFind1>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   87 |         for (int i = 0; i < uf.size(); i++) {
      |                         ~~^~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 0 / 17
• Subtask 3: 18 / 18
• Subtask 4: 14 / 14
• Subtask 5: 0 / 31