#include "simurgh.h"
#include <bits/stdc++.h>
using namespace std;
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#define flash ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define debug(x) cerr << " - " << #x << ": " << x << endl;
#define debugs(x, y) cerr << " - " << #x << ": " << x << " " << #y << ": " << y << endl;
#define all(x) (x).begin(),(x).end()
#define sz(x) (ll)x.size()
#define ll long long
#define INF 1000000000
#define MOD 1000000007
#define pb push_back
#define ve vector<ll>
#define dos pair<ll,ll>
#define vedos vector<dos>
#define rand mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
struct greateri
{
template<class T>
bool operator()(T const &a, T const &b) const { return a > b; }
};
vector<int> edges;
map<pair<int,int>,int>gg,gg1;
bool vis[501];
vector<int>graph[501];
int counter;
int na;
vector<int> yay;
bool ka;
ve yup;
set<int>cup;
int tab[8];
vector<int> find_roads(int n, vector<int> u, vector<int> v) {
for (int i = 0; i < u.size(); ++i)
{
gg[{min(u[i],v[i]),max(u[i],v[i])}]=i;
gg1[{min(u[i],v[i]),max(u[i],v[i])}]=1;
graph[u[i]].pb(v[i]);
graph[v[i]].pb(u[i]);
//debugs(u[i],v[i]);
}
for (int i = 0; i < n; ++i)
{
tab[i]=i;
}
na=n;
do {
vector<int>kahba;
//cout<<tab[0]<<" ";
for (int i = 1; i < n; ++i)
{
//cout<<tab[i]<<" ";
if(gg1[{min(tab[i],tab[i-1]),max(tab[i],tab[i-1])}]==1)
{
//debugs(tab[i],tab[i-1]);
kahba.pb(gg[{min(tab[i],tab[i-1]),max(tab[i],tab[i-1])}]);
}
}
//cout<<endl;
if(kahba.size()==(n-1))
{
for(auto it:kahba)//cout<<it<<" ";
//cout<<endl;
int dol = count_common_roads(kahba);
//debug(dol);
if(dol==(n-1))
return kahba;
}
}while (next_permutation(tab, tab + n));
}
Compilation message
simurgh.cpp:5:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
#pragma GCC optimization ("O3")
simurgh.cpp:6:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
#pragma GCC optimization ("unroll-loops")
simurgh.cpp: In function 'std::vector<int> find_roads(int, std::vector<int>, std::vector<int>)':
simurgh.cpp:37:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < u.size(); ++i)
~~^~~~~~~~~~
simurgh.cpp:63:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(kahba.size()==(n-1))
~~~~~~~~~~~~^~~~~~~
simurgh.cpp:67:8: warning: unused variable 'dol' [-Wunused-variable]
int dol = count_common_roads(kahba);
^~~
simurgh.cpp:65:13: warning: unused variable 'it' [-Wunused-variable]
for(auto it:kahba)//cout<<it<<" ";
^~
simurgh.cpp:69:7: error: 'dol' was not declared in this scope
if(dol==(n-1))
^~~
simurgh.cpp:69:7: note: suggested alternative: 'dos'
if(dol==(n-1))
^~~
dos
simurgh.cpp:73:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
