답안 #73815

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
73815 2018-08-29T05:08:34 Z 윤교준(#2277) 놀이터에 떨어진 이상한 약 (FXCUP3_gorgeous) C++11
0 / 100
13 ms 632 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 pb push_back
#define eb emplace_back
#define sz(V) ((int)(V).size())
#define allv(V) ((V).begin()),((V).end())
#define sorv(V) sort(allv(V))
#define revv(V) reverse(allv(V))
#define univ(V) (V).erase(unique(allv(V)),(V).end())
#define clv(V) (V).clear()
#define upmin(a,b) (a)=min((a),(b))
#define upmax(a,b) (a)=max((a),(b))
#define rb(x) ((x)&(-(x)))
#define INF (0x3f3f3f3f)
#define INFLL (0x3f3f3f3f3f3f3f3fll)
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
static unsigned char str[8800088], *p=str;
static ll __arrll[20000000], *__arrllp = __arrll;
inline ll* newll(const unsigned int SZ) {
	__arrllp += SZ;
	return __arrllp - SZ;
}
static int __arrint[20000000], *__arrintp = __arrint;
inline int* newint(const unsigned int SZ) {
	__arrintp += SZ;
	return __arrintp - SZ;
}

const int MAXN = 300005;
const int MX = 524288;

struct BIT {
	ll *d;
	int *XV;
	int n, i;
	
	void pushpoint() { n++; }
	void precalpoint() {
		if(!n) return;
		XV = newint(n);
	}
	void push(int x) { XV[i++] = x; }
	void precal() {
		if(!n) return;
		sort(XV, XV+n);
		n = int(unique(XV, XV+n) - XV);
		d = newll(n+1);
		fill(d, d+n+1, 0);
	}
	
	void upd(int x, ll r) {
		x = int(lower_bound(XV, XV+n, x) - XV) + 1;
		for(; x <= n; x += rb(x))
			if(d[x] < r) d[x] = r;
	}
	ll get(int x) {
		x = int(upper_bound(XV, XV+n, x) - XV);
		ll r = 0;
		for(; 0 < x; x -= rb(x))
			if(r < d[x]) r = d[x];
		return r;
	}
};

struct SEG {
	BIT d[MX*2];
	int mx;

	void pushpoint(int x, int y) {
		for(x += mx; x; x >>= 1)
			d[x].pushpoint();
	}
	void precalpoint() {
		for(int i = 1; i < mx*2; i++)
			d[i].precalpoint();
	}
	void push(int x, int y) {
		for(x += mx; x; x >>= 1)
			d[x].push(y);
	}
	void precal() {
		for(int i = 1; i < mx*2; i++)
			d[i].precal();
	}

	void upd(int x, int y, ll r) {
		for(x += mx; x; x >>= 1)
			d[x].upd(y, r);
	}
	ll get(int s, int y) {
		ll r = 0, t; int e = mx-1;
		for(s += mx, e += mx; s <= e; s >>= 1, e >>= 1) {
			if(s&1) {
				t = d[s].get(y);
				if(r < t) r = t;
				s++;
			}
			if(~e&1) {
				t = d[e].get(y);
				if(r < t) r = t;
				e--;
			}
		}
		return r;
	}
} seg;

struct EVT {
	EVT(int s, int e, int x) : s(s), e(e), x(x) {}
	int s, e, x;

	inline void f(int &_s, int &_e, int &_x) const {
		_s = s; _e = e; _x = x;
	}
	bool operator < (const EVT &t) const {
		return (e-s) > (t.e-t.s);
	}
};

vector<EVT> EV;
vector<pii> LV;
vector<int> LXV, LYV;

int A[MAXN], B[MAXN];

int N;

inline bool isGood(int s, int e) { return 1 <= s && s <= e && e <= N; }

int main() {
	fread(str, 1, 8800088, stdin);

	rf(N)
	for(int i = 1; i <= N; i++) { rf(A[i]) }
	for(int i = 1; i <= N; i++) { rf(B[i]) }

	LV.eb(1, N);
	for(int i = 1, s, e; i <= N; i++) {
		s = i-A[i]+1; e = i-1;
		if(isGood(s, e)) {
			LV.eb(s, e);
			EV.eb(s, e+1, i);
		}
		s = i+1; e = i+A[i]-1;
		if(isGood(s, e)) {
			LV.eb(s, e);
			EV.eb(s-1, e, -i);
		}
	}
	for(auto &v : LV) { LXV.eb(v.first); LYV.eb(v.second); }
	sorv(LXV); univ(LXV); sorv(LYV); univ(LYV);
	for(seg.mx = 1; seg.mx < sz(LXV); seg.mx <<= 1);
	for(auto &v : LV) {
		v.first = int(lower_bound(allv(LXV), v.first) - LXV.begin());
		v.second = int(lower_bound(allv(LYV), v.second) - LYV.begin());
	}
	for(auto &v : LV) seg.pushpoint(v.second, v.first);
	seg.precalpoint();
	for(auto &v : LV) seg.push(v.second, v.first);
	seg.precal(); sorv(EV);

	for(auto &evt : EV) {
		int s, e, idx, si, ei; evt.f(s, e, idx);
		if(0 < idx) {
			ei = int(lower_bound(allv(LYV), e) - LYV.begin());
			si = int(upper_bound(allv(LXV), s) - LXV.begin()) - 1;
			ll t = seg.get(ei, si) + B[idx];
			ei = int(lower_bound(allv(LYV), e-1) - LYV.begin());
			seg.upd(ei, si, t);
		} else {
			idx = -idx;
			ei = int(lower_bound(allv(LYV), e) - LYV.begin());
			si = int(upper_bound(allv(LXV), s) - LXV.begin()) - 1;
			ll t = seg.get(ei, si) + B[idx];
			si = int(upper_bound(allv(LXV), s+1) - LXV.begin()) - 1;
			seg.upd(ei, si, t);
		}
	}

	for(int i = 1; i <= N; i++) {
		int ei = int(lower_bound(allv(LYV), i) - LYV.begin());
		int si = int(upper_bound(allv(LXV), i) - LXV.begin()) - 1;
		printf("%lld ", seg.get(ei, si) + (1 == A[i] ? B[i] : 0));
	}
	puts("");
	return 0;
}

Compilation message

gorgeous.cpp: In function 'int main()':
gorgeous.cpp:133:7: 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, 8800088, stdin);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 416 KB Output is correct
2 Correct 4 ms 436 KB Output is correct
3 Correct 3 ms 436 KB Output is correct
4 Correct 2 ms 472 KB Output is correct
5 Runtime error 13 ms 632 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 416 KB Output is correct
2 Correct 4 ms 436 KB Output is correct
3 Correct 3 ms 436 KB Output is correct
4 Correct 2 ms 472 KB Output is correct
5 Runtime error 13 ms 632 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 416 KB Output is correct
2 Correct 4 ms 436 KB Output is correct
3 Correct 3 ms 436 KB Output is correct
4 Correct 2 ms 472 KB Output is correct
5 Runtime error 13 ms 632 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Halted 0 ms 0 KB -