oj.uz

답안 #118645

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
118645 2019-06-19T10:11:49 Z roseanne_pcy Pinball (JOI14_pinball) C++14
51 / 100
 476 ms 104508 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);
	if(n> 100000) while(true);
	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]];
	}
	assert(cnt<= 3e5);
	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:81:8: 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 56 ms 35576 KB Output is correct
2 Correct 28 ms 35584 KB Output is correct
3 Correct 28 ms 35540 KB Output is correct
4 Correct 30 ms 35576 KB Output is correct
5 Correct 51 ms 35576 KB Output is correct
6 Correct 27 ms 35584 KB Output is correct
7 Correct 27 ms 35528 KB Output is correct
8 Correct 26 ms 35576 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 56 ms 35576 KB Output is correct
2 Correct 28 ms 35584 KB Output is correct
3 Correct 28 ms 35540 KB Output is correct
4 Correct 30 ms 35576 KB Output is correct
5 Correct 51 ms 35576 KB Output is correct
6 Correct 27 ms 35584 KB Output is correct
7 Correct 27 ms 35528 KB Output is correct
8 Correct 26 ms 35576 KB Output is correct
9 Correct 29 ms 35572 KB Output is correct
10 Correct 28 ms 35508 KB Output is correct
11 Correct 27 ms 35588 KB Output is correct
12 Correct 27 ms 35628 KB Output is correct
13 Correct 27 ms 35604 KB Output is correct
14 Correct 27 ms 35556 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 56 ms 35576 KB Output is correct
2 Correct 28 ms 35584 KB Output is correct
3 Correct 28 ms 35540 KB Output is correct
4 Correct 30 ms 35576 KB Output is correct
5 Correct 51 ms 35576 KB Output is correct
6 Correct 27 ms 35584 KB Output is correct
7 Correct 27 ms 35528 KB Output is correct
8 Correct 26 ms 35576 KB Output is correct
9 Correct 29 ms 35572 KB Output is correct
10 Correct 28 ms 35508 KB Output is correct
11 Correct 27 ms 35588 KB Output is correct
12 Correct 27 ms 35628 KB Output is correct
13 Correct 27 ms 35604 KB Output is correct
14 Correct 27 ms 35556 KB Output is correct
15 Correct 27 ms 35576 KB Output is correct
16 Correct 27 ms 35584 KB Output is correct
17 Correct 28 ms 35604 KB Output is correct
18 Correct 28 ms 35584 KB Output is correct
19 Correct 28 ms 35656 KB Output is correct
20 Correct 29 ms 35612 KB Output is correct
21 Correct 29 ms 35704 KB Output is correct
22 Correct 29 ms 35744 KB Output is correct
23 Correct 29 ms 35704 KB Output is correct
24 Correct 28 ms 35840 KB Output is correct

Subtask #4
0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 56 ms 35576 KB Output is correct
2 Correct 28 ms 35584 KB Output is correct
3 Correct 28 ms 35540 KB Output is correct
4 Correct 30 ms 35576 KB Output is correct
5 Correct 51 ms 35576 KB Output is correct
6 Correct 27 ms 35584 KB Output is correct
7 Correct 27 ms 35528 KB Output is correct
8 Correct 26 ms 35576 KB Output is correct
9 Correct 29 ms 35572 KB Output is correct
10 Correct 28 ms 35508 KB Output is correct
11 Correct 27 ms 35588 KB Output is correct
12 Correct 27 ms 35628 KB Output is correct
13 Correct 27 ms 35604 KB Output is correct
14 Correct 27 ms 35556 KB Output is correct
15 Correct 27 ms 35576 KB Output is correct
16 Correct 27 ms 35584 KB Output is correct
17 Correct 28 ms 35604 KB Output is correct
18 Correct 28 ms 35584 KB Output is correct
19 Correct 28 ms 35656 KB Output is correct
20 Correct 29 ms 35612 KB Output is correct
21 Correct 29 ms 35704 KB Output is correct
22 Correct 29 ms 35744 KB Output is correct
23 Correct 29 ms 35704 KB Output is correct
24 Correct 28 ms 35840 KB Output is correct
25 Correct 50 ms 36600 KB Output is correct
26 Correct 106 ms 38896 KB Output is correct
27 Correct 296 ms 42296 KB Output is correct
28 Correct 151 ms 39148 KB Output is correct
29 Correct 208 ms 41196 KB Output is correct
30 Correct 217 ms 39268 KB Output is correct
31 Correct 476 ms 46236 KB Output is correct
32 Correct 415 ms 44008 KB Output is correct
33 Correct 79 ms 38916 KB Output is correct
34 Correct 260 ms 44040 KB Output is correct
35 Runtime error 298 ms 104508 KB Execution killed with signal 11 (could be triggered by violating memory limits)
36 Halted 0 ms 0 KB -