Language: C++

#include <bits/stdc++.h>
#include <boost/range/adaptors.hpp>
#include <boost/multiprecision/cpp_int.hpp>

/***** type *****/
using namespace std;
using ll = long long;
using ld = long double;
template <class T> using vt = vector<T>;
template <class T> using vvt = vector<vector<T>>;
template <class T> using vvvt = vector<vector<vector<T>>>;
using ml = boost::multiprecision::cpp_int;

/***** define *****/
#define all(c) (c).begin(), (c).end()            // begin to end
#define rep(i, b, e) for (ll i = b; i < e; i++)  // repeat
#define repr(i, b, e) for (ll i = b; e < i; i--) // repeat reverse
/***** const value *****/
#define llong_max 9223372036854775807            // 9 * 10^18
#define ldbl_max 1.79769e+308                    // 1.7 * 10^308
#define mod 1000000007                           // 1e9 + 7
#define pi 3.14159265                            // 3.14 ...
#define nyan 10                                  // nyan size
/***** for each macro *****/
#define fori(i, ...) if(ll i = -1) for(__VA_ARGS__) if(i++, true)
#define each(i, e, v) fori(i, auto& e: v)
#define forir(i, ...) if(ll i = Size(v)) for(__VA_ARGS__) if(i--, true)
#define eachr(i, e, v) forir(i, auto& e: boost::adaptors::reverse(v))

/***** lambda *****/
auto Bit = [] // long long bit shift
(auto n) { return (1LL << n); };
auto Count = [] // long long count value
(auto b, auto e, auto x) { return (ll)count(b, e, x); };
auto CtoN = [] // char to number
(auto c) { return (ll)(c - '0'); };
auto DivC = [] // long double div ceiling
(auto a, auto b) { return ceil((ld)a / (ld)b); };
auto Fix = [] // fix value
(auto b, auto e, auto fix)
{ for (auto it = b; it != e; ++it)* it += fix; }; 
auto NyaN = [] // long long nyan size
(auto n) { return (ll)pow(10, n); };
auto Size = []  // long long collection size
(auto& c) { return (ll)(c).size(); };
auto Sum = [] // long long accumulate
(auto b, auto e) { return accumulate(b, e, 0LL); };

/***** template *****/
template <class T> vvt<T> VVT
(ll ys, ll xs, T fill = T())
{	// vector<vector<T>> resize + fill
	vvt<T> v(ys);
	each(i, y, v) { y.resize(xs, fill); } return v;
}
template <class T> vvvt<T> VVVT
(ll zs, ll ys, ll xs, T fill = T())
{	// vector<vector<vector<T>>> resize + fill
	vvvt<T> v(zs);
	each(i, z, v) { z = VVT(ys, xs, fill); } return v;
}
template <class T> vt<T> InputVT
(ll size, T fix = T())
{   // input vector<T> (T != struct) + fix
	vt<T> v(size);
	each(i, e, v) { cin >> e; e += fix; } return v;
}
template <class T> vvt<T> InputVVT
(ll ys, ll xs, T fix = T())
{   // input vector<vector<T>> (T != struct) + fix
	vvt<T> v(ys); each(i, y, v) y.resize(xs);
	each(i, y, v) each(j, x, y) { cin >> x; x += fix; } return v;
}
template <class T> vvvt<T> InputVVVT
(ll zs, ll ys, ll xs, T fix = T())
{	// input vector<vector<vector<T>>> (T != struct) + fix
	vvvt<T> v(zs);
	each(i, z, v) { z = InputVVT<T>(ys, xs, fix); } return v;
}

namespace NyaGadget
{
	template <class T> struct BinarySearchResult
	{
		T b;      // 先頭要素
		ll c = 0; // 要素数
		ll i = 0; // インデックス 
		ll v = 0; // 値
		template <class T> BinarySearchResult<T> operator++()
		{
			if (c != 1)
			{
				i++;
				v = *(b + i);
				c--;
			}
			return *this;
		}
		template <class T> BinarySearchResult<T> operator--()
		{
			if (i != 0)
			{
				i--;
				v = *(b + i);
				c++;
			}
			return *this;
		}
		BinarySearchResult<T>& Move(ll n)
		{
			if (n + i < 0) n = 0;
			if (c - 1 < n) n = c - 1;

			i += n;
			v = *(b + i);
			c -= n;
			return *this;
		}
	};

	template <class T> 
	const BinarySearchResult<T> operator+(const BinarySearchResult<T>& l, ll r)
	{
		if (l.i + r < 0) r = l.i;
		if (l.c - 1 < r) r = l.c - 1;
		BinarySearchResult<T> res = { l.b, l.c - r, l.i + r, *(l.b + l.i + r) };
		return res;
	}

	template <class T> 
	const BinarySearchResult<T> operator-(const BinarySearchResult<T>& l, ll r)
	{
		if (l.i - r < 0) r = l.i;
		if (l.c - 1 < -r) r = -(l.c - 1);
		BinarySearchResult<T> res = { l.b, l.c + r, l.i - r, *(l.b + l.i - r) };
		return res;
	}

	template <class T1, class T2> 
	BinarySearchResult<T1> UpperBound(T1 b, T1 e, T2 x)
	{
		BinarySearchResult<T1> res;
		auto it = upper_bound(b, e, x);

		res.b = b;
		res.c = e - it;
		res.i = it - b;
		if (it == e) it--;
		res.v = *it;
		return res;
	}
}

using namespace NyaGadget;

int main(void)
{
	ll A, B, Q; cin >> A >> B >> Q;
	vt<ll> s = InputVT<ll>(A); sort(all(s));
	vt<ll> t = InputVT<ll>(B); sort(all(t));
	vt<ll> x = InputVT<ll>(Q);

	each(i, e, x)
	{
		ll ans = LLONG_MAX;
		auto s2 = UpperBound(all(s), e);
		auto t2 = UpperBound(all(t), e);
		auto s1 = s2 - 1;
		auto t1 = t2 - 1;

		vt<ll> stest = { s1.v, s2.v };
		vt<ll> ttest = { t1.v, t2.v };

		each(i, ei, stest) each(j, ej, ttest)
		{
			ans = min(ans, abs(e - ei) + abs(ei - ej));
			ans = min(ans, abs(e - ej) + abs(ej - ei));
		}
		cout << ans << endl;
	}
	
	return 0;
}


Compiler output:
a.cc:2:10: fatal error: boost/range/adaptors.hpp: No such file or directory
    2 | #include <boost/range/adaptors.hpp>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.