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답안 #118630

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
118630 2019-06-19T10:02:25 Z roseanne_pcy Pinball (JOI14_pinball) C++14
51 / 100
 447 ms 94336 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[12*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 22 ms 28536 KB Output is correct
2 Correct 23 ms 28544 KB Output is correct
3 Correct 23 ms 28536 KB Output is correct
4 Correct 22 ms 28544 KB Output is correct
5 Correct 22 ms 28544 KB Output is correct
6 Correct 23 ms 28536 KB Output is correct
7 Correct 22 ms 28544 KB Output is correct
8 Correct 22 ms 28544 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 28536 KB Output is correct
2 Correct 23 ms 28544 KB Output is correct
3 Correct 23 ms 28536 KB Output is correct
4 Correct 22 ms 28544 KB Output is correct
5 Correct 22 ms 28544 KB Output is correct
6 Correct 23 ms 28536 KB Output is correct
7 Correct 22 ms 28544 KB Output is correct
8 Correct 22 ms 28544 KB Output is correct
9 Correct 31 ms 28544 KB Output is correct
10 Correct 22 ms 28544 KB Output is correct
11 Correct 23 ms 28576 KB Output is correct
12 Correct 23 ms 28536 KB Output is correct
13 Correct 22 ms 28536 KB Output is correct
14 Correct 23 ms 28544 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 28536 KB Output is correct
2 Correct 23 ms 28544 KB Output is correct
3 Correct 23 ms 28536 KB Output is correct
4 Correct 22 ms 28544 KB Output is correct
5 Correct 22 ms 28544 KB Output is correct
6 Correct 23 ms 28536 KB Output is correct
7 Correct 22 ms 28544 KB Output is correct
8 Correct 22 ms 28544 KB Output is correct
9 Correct 31 ms 28544 KB Output is correct
10 Correct 22 ms 28544 KB Output is correct
11 Correct 23 ms 28576 KB Output is correct
12 Correct 23 ms 28536 KB Output is correct
13 Correct 22 ms 28536 KB Output is correct
14 Correct 23 ms 28544 KB Output is correct
15 Correct 22 ms 28536 KB Output is correct
16 Correct 23 ms 28544 KB Output is correct
17 Correct 23 ms 28544 KB Output is correct
18 Correct 26 ms 28544 KB Output is correct
19 Correct 23 ms 28664 KB Output is correct
20 Correct 25 ms 28672 KB Output is correct
21 Correct 24 ms 28536 KB Output is correct
22 Correct 24 ms 28700 KB Output is correct
23 Correct 24 ms 28672 KB Output is correct
24 Correct 24 ms 28792 KB Output is correct

Subtask #4
0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 28536 KB Output is correct
2 Correct 23 ms 28544 KB Output is correct
3 Correct 23 ms 28536 KB Output is correct
4 Correct 22 ms 28544 KB Output is correct
5 Correct 22 ms 28544 KB Output is correct
6 Correct 23 ms 28536 KB Output is correct
7 Correct 22 ms 28544 KB Output is correct
8 Correct 22 ms 28544 KB Output is correct
9 Correct 31 ms 28544 KB Output is correct
10 Correct 22 ms 28544 KB Output is correct
11 Correct 23 ms 28576 KB Output is correct
12 Correct 23 ms 28536 KB Output is correct
13 Correct 22 ms 28536 KB Output is correct
14 Correct 23 ms 28544 KB Output is correct
15 Correct 22 ms 28536 KB Output is correct
16 Correct 23 ms 28544 KB Output is correct
17 Correct 23 ms 28544 KB Output is correct
18 Correct 26 ms 28544 KB Output is correct
19 Correct 23 ms 28664 KB Output is correct
20 Correct 25 ms 28672 KB Output is correct
21 Correct 24 ms 28536 KB Output is correct
22 Correct 24 ms 28700 KB Output is correct
23 Correct 24 ms 28672 KB Output is correct
24 Correct 24 ms 28792 KB Output is correct
25 Correct 43 ms 29944 KB Output is correct
26 Correct 109 ms 32752 KB Output is correct
27 Correct 301 ms 37868 KB Output is correct
28 Correct 156 ms 35564 KB Output is correct
29 Correct 192 ms 36156 KB Output is correct
30 Correct 218 ms 36068 KB Output is correct
31 Correct 447 ms 42980 KB Output is correct
32 Correct 413 ms 40932 KB Output is correct
33 Correct 68 ms 32500 KB Output is correct
34 Correct 224 ms 38892 KB Output is correct
35 Runtime error 276 ms 94336 KB Execution killed with signal 11 (could be triggered by violating memory limits)
36 Halted 0 ms 0 KB -