Submission #162948

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
1629482019-11-10 11:38:23MinnakhmetovHighway Tolls (IOI18_highway)C++14
90 / 100
332 ms13740 KiB
#include "highway.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define all(aaa) aaa.begin(), aaa.end()
struct E {
int to, i;
};
const int N = 2e5 + 5;
vector<E> g[N];
int anc[N], d[N], pr[N];
void find_pair(int n, vector<int> u, vector<int> v, int a, int b) {
int m = u.size();
for (int i = 0; i < m; i++) {
g[u[i]].push_back({v[i], i});
g[v[i]].push_back({u[i], i});
pr[i] = rand();
}
ll dist = ask(vector<int>(m, 0)) / a;
int l = -1, r = m - 1;
while (r - l > 1) {
int p = (l + r) >> 1;
 
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Compilation message (stderr)

highway.cpp: In function 'void find_pair(int, std::vector<int>, std::vector<int>, int, int)':
highway.cpp:79:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = p + 1; i < tree_edges.size(); i++) {
                       ~~^~~~~~~~~~~~~~~~~~~
highway.cpp:100:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if (half.size() == dist) {
      ~~~~~~~~~~~~^~~~~~~
highway.cpp:110:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (int i = p + 1; i < tree_edges.size(); i++) {
                        ~~^~~~~~~~~~~~~~~~~~~
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