Submission #119694

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
119694	2019-06-21 21:46:36	Bruteforceman	Synchronization (JOI13_synchronization)	C++11	100 / 100	2210 ms	64976 KiB

synchronization

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#include "bits/stdc++.h"
using namespace std;
int l[100010], r[100010];
int n; 
int par[100010];
vector <int> g[100010];
 
int sub[100010];
bool del[100010];
int rt[100010];
bool vis[100010];
int sz[100010];
int last[100010];
vector <int> aux[100010];
 
void dfs(int x, int p) {
  sub[x] = 1;
  for(auto e : g[x]) {
    int i = l[e] ^ r[e] ^ x;
    if(e != p && !del[i]) {
      dfs(i, e);
      sub[x] += sub[i];
    }
  }
} 
int centroid(int x, int p, int range) {
  for(auto e : g[x]) {
    int i = l[e] ^ r[e] ^ x;
    if(e != p && sub[i] > range && !del[i]) {
      return centroid(i, e, range);
 
 
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Compilation message (stderr)

synchronization.cpp: In function 'void solve(int, std::vector<int>)':
synchronization.cpp:159:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int h = 0; h < Q.size(); h++) {
                 ~~^~~~~~~~~~
synchronization.cpp:190:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int h = 0; h < Q.size(); h++) {
                 ~~^~~~~~~~~~
synchronization.cpp:213:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   while(pt < cont.size() && cont[pt].pos < last[i]) {
         ~~~^~~~~~~~~~~~~
synchronization.cpp:220:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int h = 0; h < Q.size(); h++) {
                 ~~^~~~~~~~~~
synchronization.cpp: In function 'int main(int, const char**)':
synchronization.cpp:240:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d %d", &n, &m, &qr);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
synchronization.cpp:243:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", l + i, r + i);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
synchronization.cpp:250:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &x);
   ~~~~~^~~~~~~~~~
synchronization.cpp:257:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &u);
   ~~~~~^~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 10 / 10
• Subtask 4: 20 / 20
• Subtask 5: 40 / 40