#include<bits/stdc++.h>
#include "meetings.h"
using namespace std;
#define X first
#define Y second
typedef pair<int,int> ii;
void calc(vector<int> Ver,int P) {
int n = Ver.size();
if (n == 1) {
Bridge(Ver[0],P);
return;
}
if (n == 0) return;
vector<ii> Remain;
vector<int> toRoot; toRoot.push_back(x);
int x = Ver[rand() % n];
for(int a : Ver) if (a != x) {
int u = Query(P,a,x);
if (u == a)
toRoot.push_back(u);
else
Remain.push_back({u,a});
}
sort(Remain.begin(),Remain.end());
sort(toRoot.begin(),toRoot.end(),[&](int x,int y) {
return Query(P,x,y) == x;
});
for(int x : toRoot)
Bridge(x,P),
P = x;
int l = 0;
int r = 0;
for(; l < Remain.size() ;) {
vector<int> vec;
for(; r < Remain.size() && Remain[r].X == Remain[l].X ; ++r);
vec.push_back(Remain[r].Y);
calc(vec, Remain[l].X);
l = r;
}
}
void Solve(int n) {
srand(time(NULL));
vector<int> Ver(n - 1);
iota(Ver.begin(),Ver.end(),1);
calc(Ver,0);
}
Compilation message
meetings.cpp: In function 'void calc(std::vector<int>, int)':
meetings.cpp:20:42: error: 'x' was not declared in this scope
vector<int> toRoot; toRoot.push_back(x);
^
meetings.cpp:44:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(; l < Remain.size() ;) {
~~^~~~~~~~~~~~~~~
meetings.cpp:46:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(; r < Remain.size() && Remain[r].X == Remain[l].X ; ++r);
~~^~~~~~~~~~~~~~~
meetings.cpp:46:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
for(; r < Remain.size() && Remain[r].X == Remain[l].X ; ++r);
^~~
meetings.cpp:47:13: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
vec.push_back(Remain[r].Y);
^~~
