제출 #133923

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
133923		claudy	Bali Sculptures (APIO15_sculpture)	C++14	50 / 100	562 ms	1016 KiB

sculpture

//# pragma GCC optimize("Ofast,no-stack-protector")
//# pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
# pragma GCC optimize("Ofast")
# pragma GCC optimization ("unroll-loops")
# include "bits/stdc++.h"
/*
# include <ext/pb_ds/tree_policy.hpp>
# include <ext/pb_ds/assoc_container.hpp>
# include <ext/rope>
*/
std::pair<int,int> DR[] = {{-1,0},{0,1},{1,0},{0,-1},{-1,1},{-1,-1},{1,1},{1,-1}};
# define ll long long
# define clock (clock() * 1000.0 / CLOCKS_PER_SEC)
# define rc(s) return cout << s,0
# define rcg(s) cout << s;exit(0)
# define _ ios_base::sync_with_stdio(false);cin.tie(0);cerr.tie(0);cout.tie(0);
# define db(x) cerr << #x << " = " << x << '\n'
# define pb push_back
# define mp make_pair
# define all(s) s.begin(),s.end()
# define sz(x) (int)((x).size())
# define int ll
using namespace std;

/*
using namespace __gnu_pbds;
using namespace __gnu_cxx;
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;
Tree<int>tr;
*/

// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# define LOCAL
# define sim template < class c
# define ris return * this
# define dor > debug & operator <<
# define eni(x) sim > typename \
enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) {
sim > struct rge { c b, e; };
sim > rge<c> range(c i, c j) { return rge<c>{i, j}; }
sim > auto dud(c* x) -> decltype(cerr << *x, 0);
sim > char dud(...);
struct debug {
#ifdef LOCAL
~debug() { cerr << endl; }
eni(!=) cerr << boolalpha << i; ris; }
eni(==) ris << range(begin(i), end(i)); }
sim, class b dor(pair < b, c > d) {
ris << "(" << d.first << ", " << d.second << ")";
}
sim dor(rge<c> d) {
*this << "[";
for (auto it = d.b; it != d.e; ++it)
*this << ", " + 2 * (it == d.b) << *it;
ris << "]";
}
#else
sim dor(const c&) { ris; }
#endif
};
#define show(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] "
int gcd(int a, int b)
{
if(b) return gcd(b,a%b);
return a;
}mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

int n,a,b,c[2005],viz[2005];
vector<int>zero;
bitset<2005>dp[2005];

inline bool f()
{
	for(int i = 1;i <= n;i++) dp[i].reset();
	dp[0][0] = 1;
	for(int i = 1;i <= n;i++)
	{
		for(int j = 0;j < i;j++)
		{
			int x = c[i] - c[j];
			bool B = 1;
			for(auto it : zero)
			{
				if(x & (1LL << it))
				{
					B = 0;
					break;
				}
			}
			if(B) dp[i] |= (dp[j] << 1);
		}
	}
	for(int i = 1;i <= b;i++)
	{
		if(dp[n][i]) return true;
	}
	return false;
}

int32_t main(){_
	//freopen("input","r",stdin);
	cin >> n >> a >> b;
	for(int i = 1;i <= n;i++)
	{
		cin >> c[i];
		c[i] += c[i - 1];
	}
	for(int bit = 40;bit >= 0;bit--)
	{
		zero.pb(bit);
		if(!f()) zero.pop_back();
	}
	for(auto it : zero)
	{
		viz[it] = 1;
	}
	int ans = 0;
	for(int i = 0;i <= 40;i++)
	{
		if(!viz[i]) ans += (1LL << i);
	}
	rc(ans);
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

sculpture.cpp:4:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
 # pragma GCC optimization ("unroll-loops")

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