Submission #121457

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
121457	2019-06-26 14:19:49	gs14004	Mergers (JOI19_mergers)	C++17	100 / 100	2510 ms	128352 KiB

mergers

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 <bits/stdc++.h>
using namespace std;
const int MAXN = 500050;
using lint = long long;
using pi = pair<int, int>;
struct disj{
  int pa[MAXN];
  void init(int n){
    iota(pa, pa + n + 1, 0);
  }
  int find(int x){
    return pa[x] = (pa[x] == x ? x : find(pa[x]));
  }
  bool uni(int p, int q){
    p = find(p);
    q = find(q);
    if(p == q) return 0;
    pa[q] = p; return 1;
  }
}disj;
int n, k;
vector<int> gph[MAXN];
vector<int> grp[MAXN];
vector<int> dfn;
int par[19][MAXN], dep[MAXN], din[MAXN];
int cnt[MAXN], dx[MAXN], piv;
int lca(int x, int y){
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

mergers.cpp: In function 'int main()':
mergers.cpp:79:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0; j+1<grp[i].size(); j++){
                ~~~^~~~~~~~~~~~~~
mergers.cpp:59:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&n,&k);
  ~~~~~^~~~~~~~~~~~~~~
mergers.cpp:61:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int s, e; scanf("%d %d",&s,&e);
             ~~~~~^~~~~~~~~~~~~~~
mergers.cpp:66:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int x; scanf("%d",&x);
          ~~~~~^~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 24 / 24
• Subtask 3: 14 / 14
• Subtask 4: 22 / 22
• Subtask 5: 30 / 30