oj.uz

답안 #123879

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
123879 2019-07-02T08:28:12 Z 윤교준(#3030) Naan (JOI19_naan) C++14
29 / 100
 4000 ms 49144 KB 
#include <bits/stdc++.h>
#define rf(x) (x)=0;while(*p<48)p++;while(47<*p)(x)=((x)<<3)+((x)<<1)+(*p++&15);
#define eb emplace_back
using namespace std;
typedef long long ll;
typedef long long lll;
//typedef __int128_t lll;
//typedef long double ld;
typedef double ld;
lll gcd(lll a, lll b) { for(;b;a%=b,swap(a,b)){} return a; }
static unsigned char str[55000055], *p=str;

const int MAXX = 1000000;

struct FRC {
	FRC(lll a, lll b) : a(a), b(b) {}
	FRC(lll a) : a(a), b(1) {}
	FRC() : a(0), b(1) {}
	ll a, b; // a / b

	void prt() const { printf("%lld %lld\n", ll(a), ll(b)); }
	FRC& norm() {
		if(!a) {
			b = 1;
			return *this;
		}
		if(b < 0) {
			a = -a;
			b = -b;
		}
		ll g = gcd(abs(a), b);
		if(g) {
			a /= g;
			b /= g;
		}
		return *this;
	}

	lll floor() const { return a/b; }

	FRC& snk() {
		if(MAXX < b) {
			ld t = ld(a) / b;
			b = MAXX;
			a = t*MAXX;
			a++;
			norm();
		}
		return *this;
	}
	FRC& rsnk() {
		if(MAXX < b) {
			ld t = ld(a) / b;
			b = MAXX;
			a = t*MAXX;
			norm();
		}
		return *this;
	}

	FRC operator + (const FRC &A) const {
		return FRC(a*A.b + b*A.a, b*A.b);
	}
	FRC operator - (const FRC &A) const {
		return FRC(a*A.b - b*A.a, b*A.b);
	}
	FRC operator * (const FRC &A) const {
		return FRC(a*A.a, b*A.b);
	}
	FRC operator / (const FRC &A) const {
		return FRC(a*A.b, b*A.a);
	}

	bool operator == (const FRC &A) const {
		return a == A.a && b == A.b;
	}
	bool operator < (const FRC &A) const {
		if(floor() != A.floor()) return floor() < A.floor();
		return (a-floor()*b)*A.b < b*(A.a-A.floor()*A.b);
	}
	bool operator <= (const FRC &A) const {
		return operator == (A) || operator < (A);
	}
	bool operator > (const FRC &A) const {
		return ! operator <= (A);
	}
	bool operator >= (const FRC &A) const {
		return ! operator < (A);
	}
};


const int MAXN = 2005;
const int MAXK = 2005;

ll AS[MAXN][MAXK];
int A[MAXN][MAXK];
int LS[MAXN];

FRC pos[MAXN], nd[MAXN];
int O[MAXN];
bitset<MAXN> chk;

int N, K;

FRC nxtF(int i, FRC pv, FRC nd) {
	pv.norm().snk(); nd.norm().snk();
	if(nd <= 0) return pv;
	if(pv >= K) return K+1;
	int j = pv.floor();
	{
		FRC l = FRC(j+1) - pv;
		l.rsnk();
		if(nd <= (l * A[i][j+1]).rsnk())
			return (pv + (nd / A[i][j+1]).snk()).snk();
		nd = (nd - (l * A[i][j+1]).rsnk()).snk();
		pv = j+1;
	}
	nd.norm();
	j++;
	if(nd > AS[i][K]-AS[i][j]) return K+1;
	int s = max(j, LS[i]-1), e = K-1;
	for(int m; s < e;) {
		m = (s+e+1) >> 1;
		if(nd <= AS[i][m]-AS[i][j]) e = m-1;
		else s = m;
	}
	LS[i] = s;
	nd = (nd - (AS[i][s]-AS[i][j])).snk();
	nd.norm();
	pv = s;
	FRC l = (nd / A[i][s+1]).snk();
	return (pv + l).snk();
}

int main() {
	fread(str, 1, 55000055, stdin);

	rf(N) rf(K)
	for(int i = 1; i <= N; i++) {
		for(int j = 1; j <= K; j++) {
			rf(A[i][j])
			AS[i][j] = AS[i][j-1] + A[i][j];
		}
	}

	for(int i = 1; i <= N; i++) nd[i] = FRC(AS[i][K], N);

	for(int cnt = 1; cnt <= N; cnt++) {
		if(cnt == N) {
			for(int i = 1; i <= N; i++) if(!chk[i]) O[N] = i;
			break;
		}
		FRC mnx(K+1);
		int mni = -1;
		for(int i = 1; i <= N; i++) if(!chk[i]) {
			FRC t = nxtF(i, pos[cnt-1], nd[i]).snk();
			if(t.b > MAXX/8) {
				t.a += 3;
				t.norm().snk();
			}
			t.norm().snk();
			if(t < mnx) {
				mnx = t;
				mni = i;
			}
		}
		if(mni < 0) {
			puts("FUK");
			exit(-1);
		}
		pos[cnt] = mnx;
		O[cnt] = mni;
		chk[mni] = true;
	}

	for(int i = 1; i < N; i++) pos[i].prt();
	for(int i = 1; i <= N; i++) printf("%d ", O[i]);
	puts("");
	return 0;
}

Compilation message

naan.cpp: In function 'int main()':
naan.cpp:137:7: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
  fread(str, 1, 55000055, stdin);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 504 KB Output is correct
3 Correct 2 ms 504 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 2 ms 504 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 504 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 504 KB Output is correct
14 Correct 2 ms 504 KB Output is correct
15 Correct 2 ms 548 KB Output is correct

Subtask #2
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 504 KB Output is correct
3 Correct 2 ms 504 KB Output is correct
4 Correct 2 ms 632 KB Output is correct
5 Correct 2 ms 632 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 2 ms 552 KB Output is correct
9 Correct 2 ms 504 KB Output is correct
10 Correct 2 ms 504 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 504 KB Output is correct
14 Correct 2 ms 632 KB Output is correct
15 Correct 2 ms 504 KB Output is correct
16 Correct 2 ms 636 KB Output is correct
17 Correct 2 ms 632 KB Output is correct
18 Correct 2 ms 504 KB Output is correct
19 Correct 2 ms 504 KB Output is correct
20 Correct 2 ms 504 KB Output is correct
21 Correct 2 ms 504 KB Output is correct
22 Correct 2 ms 632 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 504 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 2 ms 508 KB Output is correct
27 Correct 2 ms 504 KB Output is correct

Subtask #3
0 / 71.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 504 KB Output is correct
3 Correct 2 ms 504 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 2 ms 504 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 504 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 504 KB Output is correct
14 Correct 2 ms 504 KB Output is correct
15 Correct 2 ms 548 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 504 KB Output is correct
18 Correct 2 ms 504 KB Output is correct
19 Correct 2 ms 632 KB Output is correct
20 Correct 2 ms 632 KB Output is correct
21 Correct 2 ms 504 KB Output is correct
22 Correct 2 ms 504 KB Output is correct
23 Correct 2 ms 552 KB Output is correct
24 Correct 2 ms 504 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 2 ms 504 KB Output is correct
27 Correct 2 ms 504 KB Output is correct
28 Correct 2 ms 504 KB Output is correct
29 Correct 2 ms 632 KB Output is correct
30 Correct 2 ms 504 KB Output is correct
31 Correct 2 ms 636 KB Output is correct
32 Correct 2 ms 632 KB Output is correct
33 Correct 2 ms 504 KB Output is correct
34 Correct 2 ms 504 KB Output is correct
35 Correct 2 ms 504 KB Output is correct
36 Correct 2 ms 504 KB Output is correct
37 Correct 2 ms 632 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 2 ms 504 KB Output is correct
40 Correct 2 ms 504 KB Output is correct
41 Correct 2 ms 508 KB Output is correct
42 Correct 2 ms 504 KB Output is correct
43 Correct 321 ms 9560 KB Output is correct
44 Correct 1962 ms 39980 KB Output is correct
45 Correct 631 ms 24056 KB Output is correct
46 Correct 24 ms 4344 KB Output is correct
47 Correct 1074 ms 31228 KB Output is correct
48 Correct 3472 ms 27512 KB Output is correct
49 Correct 743 ms 14456 KB Output is correct
50 Execution timed out 4014 ms 49144 KB Time limit exceeded
51 Halted 0 ms 0 KB -