oj.uz

답안 #118631

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
118631 2019-06-19T10:03:50 Z roseanne_pcy Pinball (JOI14_pinball) C++14
51 / 100
 449 ms 104548 KB 
#include <bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
using namespace std;
#define X first
#define Y second
#define pb push_back
typedef pair<int, int> ii;
typedef long long ll;

const int maxn = 1e5+5;
int n, m;

int A[maxn], B[maxn], C[maxn], pay[maxn];
vector<int> cut;
map<int, int> bst;

struct node
{
	ll L, R, fill;
	node() : L(1e18), R(1e18), fill(1e18){}
	node(ll L, ll R, ll fill) : L(L), R(R), fill(fill){}
};

node st[15*maxn];
int cnt;

node pull(node &x, node &y)
{
	node a;
	a.L = min(x.L, y.L);
	a.R = min(x.R, y.R);
	a.fill = min(x.fill, y.fill);
	return a;
}

void build(int p = 1, int L = 1, int R = cnt)
{
	if(L == R) 
	{
		st[p] = node();
		return;
	}
	int M = (L+R)/2;
	build(2*p, L, M);
	build(2*p+1, M+1, R);
	st[p] = pull(st[2*p], st[2*p+1]);
}

node ask(int i, int j, int p = 1, int L = 1, int R = cnt)
{
	if(i> R || j< L) return node();
	if(i<= L && R<= j) return st[p];
	int M = (L+R)/2;
	node x = ask(i, j, 2*p, L, M);
	node y = ask(i, j, 2*p+1, M+1, R);
	node res = pull(x, y);
	return res;
}

void update(int x, node &dx, int p = 1, int L = 1, int R = cnt)
{
	if(L == R)
	{
		node res = pull(dx, st[p]);
		st[p] = res;
		return;
	}
	int M = (L+R)/2;
	if(x<= M) update(x, dx, 2*p, L, M);
	else update(x, dx, 2*p+1, M+1, R);
	st[p] = pull(st[2*p], st[2*p+1]);
}

int main()
{
	scanf("%d %d", &n, &m);
	for(int i = 1; i<= n; i++)
	{
		scanf("%d %d %d %d", &A[i], &B[i], &C[i], &pay[i]);
		cut.pb(A[i]); cut.pb(B[i]); cut.pb(C[i]);
	}
	sort(cut.begin(), cut.end());
	cut.resize(unique(cut.begin(), cut.end())-cut.begin());
	if(cut[0] != 1) cnt++;
	for(int i = 0; i+1< (int) cut.size(); i++)
	{
		int x = cut[i];
		cnt++;
		bst[x] = cnt;
		if(x+1 != cut[i+1]) cnt++;
	}
	cnt++;
	bst[cut.back()] = cnt;
	if(cut.back() != m) cnt++;
	for(int i = 1; i<= n; i++)
	{
		A[i] = bst[A[i]];
		B[i] = bst[B[i]];
		C[i] = bst[C[i]];
	}
	build();
	ll best = 1e18;
	for(int i = 1; i<= n; i++)
	{
		node que = ask(A[i], B[i]);
		node res;
		res.L = que.L+pay[i];
		if(A[i] == 1) res.L = min(res.L, 1LL*pay[i]);
		res.R = que.R+pay[i];
		if(B[i] == cnt) res.R = min(res.R, 1LL*pay[i]);
		res.fill = que.fill+pay[i];
		if(A[i] == 1 && B[i] == cnt) res.fill = min(res.fill, 1LL*pay[i]);
		if(A[i] == 1) res.fill = min(res.fill, pay[i]+que.R);
		if(B[i] == cnt) res.fill = min(res.fill, pay[i]+que.L);
		res.fill = min(res.fill, pay[i]+que.L+que.R);
		update(C[i], res);
		// printf("{%lld %lld %lld}\n", res.L, res.R, res.fill);
		best = min(best, res.fill);
	}
	if(best == 1e18) printf("-1\n");
	else printf("%lld\n", best);
}

Compilation message

pinball.cpp: In function 'int main()':
pinball.cpp:77:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~~
pinball.cpp:80:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d %d", &A[i], &B[i], &C[i], &pay[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 27 ms 35576 KB Output is correct
2 Correct 27 ms 35576 KB Output is correct
3 Correct 27 ms 35584 KB Output is correct
4 Correct 26 ms 35584 KB Output is correct
5 Correct 27 ms 35576 KB Output is correct
6 Correct 26 ms 35584 KB Output is correct
7 Correct 26 ms 35584 KB Output is correct
8 Correct 26 ms 35580 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 27 ms 35576 KB Output is correct
2 Correct 27 ms 35576 KB Output is correct
3 Correct 27 ms 35584 KB Output is correct
4 Correct 26 ms 35584 KB Output is correct
5 Correct 27 ms 35576 KB Output is correct
6 Correct 26 ms 35584 KB Output is correct
7 Correct 26 ms 35584 KB Output is correct
8 Correct 26 ms 35580 KB Output is correct
9 Correct 26 ms 35520 KB Output is correct
10 Correct 28 ms 35704 KB Output is correct
11 Correct 27 ms 35584 KB Output is correct
12 Correct 28 ms 35548 KB Output is correct
13 Correct 29 ms 35576 KB Output is correct
14 Correct 28 ms 35584 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 27 ms 35576 KB Output is correct
2 Correct 27 ms 35576 KB Output is correct
3 Correct 27 ms 35584 KB Output is correct
4 Correct 26 ms 35584 KB Output is correct
5 Correct 27 ms 35576 KB Output is correct
6 Correct 26 ms 35584 KB Output is correct
7 Correct 26 ms 35584 KB Output is correct
8 Correct 26 ms 35580 KB Output is correct
9 Correct 26 ms 35520 KB Output is correct
10 Correct 28 ms 35704 KB Output is correct
11 Correct 27 ms 35584 KB Output is correct
12 Correct 28 ms 35548 KB Output is correct
13 Correct 29 ms 35576 KB Output is correct
14 Correct 28 ms 35584 KB Output is correct
15 Correct 28 ms 35612 KB Output is correct
16 Correct 29 ms 35576 KB Output is correct
17 Correct 34 ms 35676 KB Output is correct
18 Correct 33 ms 35576 KB Output is correct
19 Correct 30 ms 35832 KB Output is correct
20 Correct 29 ms 35704 KB Output is correct
21 Correct 29 ms 35660 KB Output is correct
22 Correct 29 ms 35704 KB Output is correct
23 Correct 29 ms 35712 KB Output is correct
24 Correct 31 ms 35760 KB Output is correct

Subtask #4
0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 27 ms 35576 KB Output is correct
2 Correct 27 ms 35576 KB Output is correct
3 Correct 27 ms 35584 KB Output is correct
4 Correct 26 ms 35584 KB Output is correct
5 Correct 27 ms 35576 KB Output is correct
6 Correct 26 ms 35584 KB Output is correct
7 Correct 26 ms 35584 KB Output is correct
8 Correct 26 ms 35580 KB Output is correct
9 Correct 26 ms 35520 KB Output is correct
10 Correct 28 ms 35704 KB Output is correct
11 Correct 27 ms 35584 KB Output is correct
12 Correct 28 ms 35548 KB Output is correct
13 Correct 29 ms 35576 KB Output is correct
14 Correct 28 ms 35584 KB Output is correct
15 Correct 28 ms 35612 KB Output is correct
16 Correct 29 ms 35576 KB Output is correct
17 Correct 34 ms 35676 KB Output is correct
18 Correct 33 ms 35576 KB Output is correct
19 Correct 30 ms 35832 KB Output is correct
20 Correct 29 ms 35704 KB Output is correct
21 Correct 29 ms 35660 KB Output is correct
22 Correct 29 ms 35704 KB Output is correct
23 Correct 29 ms 35712 KB Output is correct
24 Correct 31 ms 35760 KB Output is correct
25 Correct 51 ms 36728 KB Output is correct
26 Correct 171 ms 38996 KB Output is correct
27 Correct 296 ms 42192 KB Output is correct
28 Correct 157 ms 39148 KB Output is correct
29 Correct 218 ms 41248 KB Output is correct
30 Correct 218 ms 39144 KB Output is correct
31 Correct 449 ms 46352 KB Output is correct
32 Correct 376 ms 44008 KB Output is correct
33 Correct 73 ms 38900 KB Output is correct
34 Correct 253 ms 44080 KB Output is correct
35 Runtime error 313 ms 104548 KB Execution killed with signal 11 (could be triggered by violating memory limits)
36 Halted 0 ms 0 KB -