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답안 #375222

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
375222 2021-03-09T04:41:50 Z Kevin_Zhang_TW Naan (JOI19_naan) C++17
0 / 100
 1586 ms 492 KB 
//#undef KEV
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb emplace_back
#define AI(i) begin(i), end(i)
template<class T> bool chmin(T &a, T b) { return b < a && (a = b, true); }
template<class T> bool chmax(T &a, T b) { return a < b && (a = b, true); }
#ifdef KEV
#define DE(args...) kout("[ " + string(#args) + " ] = ", args)
void kout() { cerr << endl; }
template<class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ', kout(b...); }
template<class T> void debug(T l, T r) { while (l != r) cerr << *l << " \n"[next(l) == r], ++l; }
#else
#define DE(...) 0
#define debug(...) 0
#endif 
const int MAX_N = 2005, inf = 1e9;

using opl = long long;

int n, L;
opl v[MAX_N][MAX_N];

using lll = __int128;

#define ll lll


opl gcd(lll a, lll b) { return gcd(opl(a), opl(b)); }

struct frac {
	ll up, dn;
	void ref() { ll g = gcd(up, dn); up/=g, dn/=g; }
	frac(ll a, ll b) :
		up(a), dn(b) {}
	frac(ll v) :
		up(v), dn(1) {}
	void sca(ll v) { up *= v, dn *= v; }
	frac& chk() {
		if (dn > inf) {
			ll num = up / dn, lft = up % dn;
			up = (lll)inf * lft / dn + num * inf, dn = inf;
		}
		return *this;
	}
};
frac operator * (frac a, frac b) { a.up *= b.up, a.dn *= b.dn, a.ref(); return a.chk(); }
frac operator * (frac a, ll v) { a.up *= v; return a.chk(); }
frac operator / (frac a, ll v) { a.dn *= v; return a.chk(); }
frac operator + (frac a, frac b) {
	ll da = a.dn, db = b.dn, nd = da / gcd(da, db) * db;
	a.sca(nd/da), b.sca(nd/db);
	a.up += b.up;
	return a.chk();
}
frac operator - (frac a, frac b) { 
	ll da = a.dn, db = b.dn, nd = da / gcd(da, db) * db;
	a.sca(nd/da), b.sca(nd/db);
	a.up -= b.up;
	return a.chk();
}

frac& operator += (frac &a, frac b) { return a = a + b; }
frac& operator -= (frac &a, frac b) { return a = a - b; }

bool operator < (frac a, frac b) { return (lll)a.up * b.dn < (lll)b.up * a.dn; }
bool operator > (frac a, frac b) { return (lll)a.up * b.dn > (lll)b.up * a.dn; }

ostream& operator << (ostream& out, frac a) { return out << (opl)a.up << ' ' << (opl)a.dn; }


int32_t main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	cin >> n >> L;
	for (int i = 0;i < n;++i)
		for (int j = 0;j < L;++j)
			cin >> v[i][j];

	int holan = 5000;
	random_device rd;
	mt19937 gen(rd());

	while (holan--) {

		vector<int> res;
		bool ok = true;
		vector<frac> sep{{0, 1}};

		auto geted = [&](int x) {
			int sum = 0;
			for (int j = 0;j < L;++j)
				sum += v[x][j];

			auto [up, dn] = sep.back();

			int atid = up / dn, lft = dn - up % dn;

			//DE(x, atid, lft, dn);

			frac need{sum, n};

			if (frac(lft, dn) * v[x][atid] > need) {
				frac len = need / v[x][atid];
				return len + sep.back();
			}
			need -= frac(lft, dn) * v[x][atid];
			++atid;
			while (atid < L) {
				if (need < v[x][atid]) break;
				need -= v[x][atid++];
			}
			if (atid == L && need > frac(0)) {
				ok = false;
				return frac(inf, 1);
			}
			frac ed = frac(atid) + need / v[x][atid];
			return ed;
		};
		vector<int> od(n); iota(AI(od), 0);

		shuffle(AI(od), gen);
		debug(AI(od));

		for (int pos = 0;pos < n;++pos) {
			int id = -1;

			frac ned(inf, 1);

			for (int x : od) {
				frac ed = geted(x);
				if (chmin(ned, ed))
					id = x;
			}

			if (id == -1) {
				ok = false;
				break;
			}
			res.pb(id);
			sep.pb(ned);
			DE(id, ned);

			debug(AI(od));
			od.erase(find(AI(od), id));
			debug(AI(od));
		}

		if (!ok) continue;

		for (int i = 1;i < n;++i)
			cout << sep[i] << '\n';
		for (int i = 0;i < n;++i)
			cout << res[i]+1 << " \n"[i+1==n];

		return 0;
	}

	//cout << -1 << '\n';
}

Compilation message

naan.cpp: In function 'int32_t main()':
naan.cpp:16:20: warning: statement has no effect [-Wunused-value]
   16 | #define debug(...) 0
      |                    ^
naan.cpp:123:3: note: in expansion of macro 'debug'
  123 |   debug(AI(od));
      |   ^~~~~
naan.cpp:15:17: warning: statement has no effect [-Wunused-value]
   15 | #define DE(...) 0
      |                 ^
naan.cpp:142:4: note: in expansion of macro 'DE'
  142 |    DE(id, ned);
      |    ^~
naan.cpp:16:20: warning: statement has no effect [-Wunused-value]
   16 | #define debug(...) 0
      |                    ^
naan.cpp:144:4: note: in expansion of macro 'debug'
  144 |    debug(AI(od));
      |    ^~~~~
naan.cpp:16:20: warning: statement has no effect [-Wunused-value]
   16 | #define debug(...) 0
      |                    ^
naan.cpp:146:4: note: in expansion of macro 'debug'
  146 |    debug(AI(od));
      |    ^~~~~

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Incorrect 593 ms 364 KB Unexpected end of file - int64 expected
12 Halted 0 ms 0 KB -

Subtask #2
0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 2 ms 492 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 2 ms 492 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 2 ms 492 KB Output is correct
17 Correct 2 ms 492 KB Output is correct
18 Incorrect 1586 ms 492 KB Unexpected end of file - int64 expected
19 Halted 0 ms 0 KB -

Subtask #3
0 / 71.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Incorrect 593 ms 364 KB Unexpected end of file - int64 expected
12 Halted 0 ms 0 KB -