oj.uz

답안 #197552

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
197552 2020-01-21T16:19:32 Z Juney Cake 3 (JOI19_cake3) C++14
100 / 100
 971 ms 126844 KB 
#include <bits/stdc++.h>
using namespace std;

#define fi first
#define se second

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 2e5 + 5;

ll N, M, ans = -1e18;
pii A[MAXN];

ll comp[MAXN], root[MAXN];
int get_idx(ll val) { return lower_bound(comp+1, comp+1+N, val) - comp; }

struct PST {
	struct NODE { ll l, r, cnt, sum; } T[MAXN * 30];
	int sz;
	int make(int v, int l, int r, int n) {
		if(r < v || v < l) return n;
		int cur = ++sz;
		T[cur] = T[n];
		if(l != r) {
			int mid = l + r >> 1;
			T[cur].l = make(v, l, mid, T[n].l);
			T[cur].r = make(v, mid+1, r, T[n].r);
		}
		T[cur].cnt++;
		T[cur].sum += comp[v];
		return cur;
	}
	ll query(int tot, int l, int r, int n1, int n2) {
		if(l == r) return comp[l] * tot;
		int rcnt = T[T[n2].r].cnt - T[T[n1].r].cnt;
		ll sum = T[T[n2].r].sum - T[T[n1].r].sum;
		int mid = l + r >> 1;
		if(rcnt >= tot) return query(tot, mid+1, r, T[n1].r, T[n2].r);
		else return sum + query(tot - rcnt, l, mid, T[n1].l, T[n2].l);
	}
} pst;

void f(int s, int e, int l, int r) {
	if(l > r) return;
	int mid = l + r >> 1;
	ll k = e, MAX = -1e18;
	for(int i=max((ll)s, mid+M-1); i<=e; i++) {
		ll q = pst.query(M, 1, N, root[mid-1], root[i]) - 2LL * (A[i].fi - A[mid].fi);
		if(MAX <= q) {
			MAX = q;
			k = i;
		}
	}
	ans = max(ans, MAX);
	f(s, k, l, mid-1); f(k, e, mid+1, r);
}

int main() {
	ios::sync_with_stdio(0); cin.tie(0);
	cin >> N >> M;
	for(int i=1; i<=N; i++) {
		cin >> A[i].se >> A[i].fi;
		comp[i] = A[i].se;
	}
	sort(comp+1, comp+1+N);
	sort(A+1, A+1+N);
	for(int i=1; i<=N; i++) root[i] = pst.make(get_idx(A[i].se), 1, N, root[i-1]); 
	f(1, N, 1, N);
	cout << ans;
}

Compilation message

cake3.cpp: In member function 'int PST::make(int, int, int, int)':
cake3.cpp:27:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    int mid = l + r >> 1;
              ~~^~~
cake3.cpp: In member function 'll PST::query(int, int, int, int, int)':
cake3.cpp:39:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int mid = l + r >> 1;
             ~~^~~
cake3.cpp: In function 'void f(int, int, int, int)':
cake3.cpp:47:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid = l + r >> 1;
            ~~^~~

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 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 0 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 420 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 504 KB Output is correct
16 Correct 3 ms 376 KB Output is correct
17 Correct 2 ms 504 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 424 KB Output is correct
20 Correct 2 ms 504 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 7 ms 348 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 248 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 3 ms 376 KB Output is correct

Subtask #2
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 0 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 420 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 504 KB Output is correct
16 Correct 3 ms 376 KB Output is correct
17 Correct 2 ms 504 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 424 KB Output is correct
20 Correct 2 ms 504 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 7 ms 348 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 248 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 3 ms 376 KB Output is correct
38 Correct 2 ms 1144 KB Output is correct
39 Correct 4 ms 1272 KB Output is correct
40 Correct 9 ms 1272 KB Output is correct
41 Correct 5 ms 1144 KB Output is correct
42 Correct 4 ms 1144 KB Output is correct
43 Correct 5 ms 1144 KB Output is correct
44 Correct 5 ms 1144 KB Output is correct
45 Correct 5 ms 1144 KB Output is correct
46 Correct 6 ms 1220 KB Output is correct
47 Correct 6 ms 1144 KB Output is correct
48 Correct 5 ms 1144 KB Output is correct
49 Correct 6 ms 1272 KB Output is correct
50 Correct 5 ms 1144 KB Output is correct
51 Correct 5 ms 1144 KB Output is correct
52 Correct 5 ms 1144 KB Output is correct
53 Correct 5 ms 1144 KB Output is correct
54 Correct 4 ms 1144 KB Output is correct
55 Correct 5 ms 1144 KB Output is correct
56 Correct 4 ms 1144 KB Output is correct
57 Correct 4 ms 1168 KB Output is correct
58 Correct 4 ms 1144 KB Output is correct
59 Correct 4 ms 1272 KB Output is correct
60 Correct 4 ms 1144 KB Output is correct
61 Correct 4 ms 1144 KB Output is correct
62 Correct 2 ms 1144 KB Output is correct
63 Correct 4 ms 1276 KB Output is correct
64 Correct 4 ms 1192 KB Output is correct
65 Correct 5 ms 1144 KB Output is correct
66 Correct 5 ms 1148 KB Output is correct
67 Correct 6 ms 1144 KB Output is correct
68 Correct 5 ms 1272 KB Output is correct
69 Correct 5 ms 1144 KB Output is correct
70 Correct 5 ms 1144 KB Output is correct
71 Correct 4 ms 1144 KB Output is correct
72 Correct 4 ms 1144 KB Output is correct
73 Correct 5 ms 1144 KB Output is correct
74 Correct 4 ms 1148 KB Output is correct

Subtask #3
76.0 / 76.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 0 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 420 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 504 KB Output is correct
16 Correct 3 ms 376 KB Output is correct
17 Correct 2 ms 504 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 424 KB Output is correct
20 Correct 2 ms 504 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 7 ms 348 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 248 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 3 ms 376 KB Output is correct
38 Correct 2 ms 1144 KB Output is correct
39 Correct 4 ms 1272 KB Output is correct
40 Correct 9 ms 1272 KB Output is correct
41 Correct 5 ms 1144 KB Output is correct
42 Correct 4 ms 1144 KB Output is correct
43 Correct 5 ms 1144 KB Output is correct
44 Correct 5 ms 1144 KB Output is correct
45 Correct 5 ms 1144 KB Output is correct
46 Correct 6 ms 1220 KB Output is correct
47 Correct 6 ms 1144 KB Output is correct
48 Correct 5 ms 1144 KB Output is correct
49 Correct 6 ms 1272 KB Output is correct
50 Correct 5 ms 1144 KB Output is correct
51 Correct 5 ms 1144 KB Output is correct
52 Correct 5 ms 1144 KB Output is correct
53 Correct 5 ms 1144 KB Output is correct
54 Correct 4 ms 1144 KB Output is correct
55 Correct 5 ms 1144 KB Output is correct
56 Correct 4 ms 1144 KB Output is correct
57 Correct 4 ms 1168 KB Output is correct
58 Correct 4 ms 1144 KB Output is correct
59 Correct 4 ms 1272 KB Output is correct
60 Correct 4 ms 1144 KB Output is correct
61 Correct 4 ms 1144 KB Output is correct
62 Correct 2 ms 1144 KB Output is correct
63 Correct 4 ms 1276 KB Output is correct
64 Correct 4 ms 1192 KB Output is correct
65 Correct 5 ms 1144 KB Output is correct
66 Correct 5 ms 1148 KB Output is correct
67 Correct 6 ms 1144 KB Output is correct
68 Correct 5 ms 1272 KB Output is correct
69 Correct 5 ms 1144 KB Output is correct
70 Correct 5 ms 1144 KB Output is correct
71 Correct 4 ms 1144 KB Output is correct
72 Correct 4 ms 1144 KB Output is correct
73 Correct 5 ms 1144 KB Output is correct
74 Correct 4 ms 1148 KB Output is correct
75 Correct 915 ms 116856 KB Output is correct
76 Correct 971 ms 113564 KB Output is correct
77 Correct 832 ms 117152 KB Output is correct
78 Correct 873 ms 119032 KB Output is correct
79 Correct 342 ms 119416 KB Output is correct
80 Correct 358 ms 115764 KB Output is correct
81 Correct 657 ms 117496 KB Output is correct
82 Correct 838 ms 119332 KB Output is correct
83 Correct 753 ms 123532 KB Output is correct
84 Correct 812 ms 123128 KB Output is correct
85 Correct 683 ms 118508 KB Output is correct
86 Correct 435 ms 114372 KB Output is correct
87 Correct 462 ms 112668 KB Output is correct
88 Correct 609 ms 111928 KB Output is correct
89 Correct 623 ms 118648 KB Output is correct
90 Correct 574 ms 124288 KB Output is correct
91 Correct 376 ms 114420 KB Output is correct
92 Correct 381 ms 113400 KB Output is correct
93 Correct 421 ms 118708 KB Output is correct
94 Correct 418 ms 124316 KB Output is correct
95 Correct 516 ms 124592 KB Output is correct
96 Correct 391 ms 117584 KB Output is correct
97 Correct 379 ms 126844 KB Output is correct
98 Correct 384 ms 124792 KB Output is correct
99 Correct 356 ms 125176 KB Output is correct
100 Correct 317 ms 118008 KB Output is correct
101 Correct 322 ms 118136 KB Output is correct
102 Correct 571 ms 115704 KB Output is correct
103 Correct 735 ms 114016 KB Output is correct
104 Correct 786 ms 120688 KB Output is correct
105 Correct 507 ms 120184 KB Output is correct
106 Correct 526 ms 123516 KB Output is correct
107 Correct 444 ms 118780 KB Output is correct
108 Correct 831 ms 118180 KB Output is correct
109 Correct 703 ms 125816 KB Output is correct
110 Correct 291 ms 115360 KB Output is correct
111 Correct 392 ms 117240 KB Output is correct
112 Correct 824 ms 111668 KB Output is correct
113 Correct 362 ms 125940 KB Output is correct