Submission #361970

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
361970	2021-02-01 12:32:35	AlexLuchianov	Election Campaign (JOI15_election_campaign)	C++14	100 / 100	266 ms	36504 KiB

election_campaign

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#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <cassert>
using ll = long long;
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#define MAX(a, b) (((a) < (b)) ? (b) : (a))
int const nmax = 100000;
int const lgmax = 20;
std::vector<int> g[1 + nmax];
int far[1 + lgmax][1 + nmax], level[1 + nmax];
int start[1 + nmax], stop[1 + nmax], ptr = 0;
void dfs(int node, int parent) {
  far[0][node] = parent;
  level[node] = level[parent] + 1;
  start[node] = ++ptr;
  for(int h = 0; h < g[node].size(); h++) {
    int to = g[node][h];
    if(to != parent)
      dfs(to, node);
  }
  stop[node] = ptr;
}
int getlca(int x, int y) {
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

election_campaign.cpp: In function 'void dfs(int, int)':
election_campaign.cpp:22:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |   for(int h = 0; h < g[node].size(); h++) {
      |                  ~~^~~~~~~~~~~~~~~~
election_campaign.cpp: In function 'void solve(int, int, FenwickTree&)':
election_campaign.cpp:77:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |   for(int h = 0; h < g[node].size(); h++) {
      |                  ~~^~~~~~~~~~~~~~~~
election_campaign.cpp:84:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Event>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   84 |   for(int h = 0; h < events[node].size(); h++) {
      |                  ~~^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 30 / 30
• Subtask 5: 10 / 10
• Subtask 6: 40 / 40