oj.uz

답안 #197554

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
197554 2020-01-21T16:23:33 Z Juney Cake 3 (JOI19_cake3) C++14
100 / 100
 985 ms 125264 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 1 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 4 ms 376 KB Output is correct
8 Correct 4 ms 248 KB Output is correct
9 Correct 0 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 0 ms 376 KB Output is correct
18 Correct 2 ms 248 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 6 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 1 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 1 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 1 ms 504 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 3 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 0 ms 376 KB Output is correct
34 Correct 1 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 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 1 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 4 ms 376 KB Output is correct
8 Correct 4 ms 248 KB Output is correct
9 Correct 0 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 0 ms 376 KB Output is correct
18 Correct 2 ms 248 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 6 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 1 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 1 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 1 ms 504 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 3 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 0 ms 376 KB Output is correct
34 Correct 1 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 376 KB Output is correct
38 Correct 6 ms 1116 KB Output is correct
39 Correct 5 ms 1144 KB Output is correct
40 Correct 5 ms 1084 KB Output is correct
41 Correct 5 ms 1016 KB Output is correct
42 Correct 4 ms 1144 KB Output is correct
43 Correct 11 ms 1144 KB Output is correct
44 Correct 1 ms 1144 KB Output is correct
45 Correct 5 ms 1144 KB Output is correct
46 Correct 5 ms 1144 KB Output is correct
47 Correct 10 ms 1144 KB Output is correct
48 Correct 5 ms 1016 KB Output is correct
49 Correct 5 ms 1144 KB Output is correct
50 Correct 5 ms 1148 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 5 ms 1144 KB Output is correct
57 Correct 5 ms 1144 KB Output is correct
58 Correct 4 ms 1144 KB Output is correct
59 Correct 4 ms 1144 KB Output is correct
60 Correct 4 ms 1144 KB Output is correct
61 Correct 4 ms 1144 KB Output is correct
62 Correct 4 ms 1144 KB Output is correct
63 Correct 4 ms 1144 KB Output is correct
64 Correct 4 ms 1144 KB Output is correct
65 Correct 5 ms 1148 KB Output is correct
66 Correct 11 ms 1144 KB Output is correct
67 Correct 5 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 1148 KB Output is correct
71 Correct 4 ms 1144 KB Output is correct
72 Correct 3 ms 1144 KB Output is correct
73 Correct 5 ms 1144 KB Output is correct
74 Correct 4 ms 1144 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 1 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 4 ms 376 KB Output is correct
8 Correct 4 ms 248 KB Output is correct
9 Correct 0 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 0 ms 376 KB Output is correct
18 Correct 2 ms 248 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 6 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 1 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 1 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 1 ms 504 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 3 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 0 ms 376 KB Output is correct
34 Correct 1 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 376 KB Output is correct
38 Correct 6 ms 1116 KB Output is correct
39 Correct 5 ms 1144 KB Output is correct
40 Correct 5 ms 1084 KB Output is correct
41 Correct 5 ms 1016 KB Output is correct
42 Correct 4 ms 1144 KB Output is correct
43 Correct 11 ms 1144 KB Output is correct
44 Correct 1 ms 1144 KB Output is correct
45 Correct 5 ms 1144 KB Output is correct
46 Correct 5 ms 1144 KB Output is correct
47 Correct 10 ms 1144 KB Output is correct
48 Correct 5 ms 1016 KB Output is correct
49 Correct 5 ms 1144 KB Output is correct
50 Correct 5 ms 1148 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 5 ms 1144 KB Output is correct
57 Correct 5 ms 1144 KB Output is correct
58 Correct 4 ms 1144 KB Output is correct
59 Correct 4 ms 1144 KB Output is correct
60 Correct 4 ms 1144 KB Output is correct
61 Correct 4 ms 1144 KB Output is correct
62 Correct 4 ms 1144 KB Output is correct
63 Correct 4 ms 1144 KB Output is correct
64 Correct 4 ms 1144 KB Output is correct
65 Correct 5 ms 1148 KB Output is correct
66 Correct 11 ms 1144 KB Output is correct
67 Correct 5 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 1148 KB Output is correct
71 Correct 4 ms 1144 KB Output is correct
72 Correct 3 ms 1144 KB Output is correct
73 Correct 5 ms 1144 KB Output is correct
74 Correct 4 ms 1144 KB Output is correct
75 Correct 931 ms 115932 KB Output is correct
76 Correct 985 ms 112632 KB Output is correct
77 Correct 844 ms 115448 KB Output is correct
78 Correct 886 ms 116728 KB Output is correct
79 Correct 339 ms 117112 KB Output is correct
80 Correct 390 ms 113620 KB Output is correct
81 Correct 664 ms 116088 KB Output is correct
82 Correct 849 ms 117752 KB Output is correct
83 Correct 768 ms 121968 KB Output is correct
84 Correct 831 ms 121320 KB Output is correct
85 Correct 696 ms 116936 KB Output is correct
86 Correct 438 ms 112884 KB Output is correct
87 Correct 460 ms 111352 KB Output is correct
88 Correct 623 ms 110696 KB Output is correct
89 Correct 604 ms 117336 KB Output is correct
90 Correct 464 ms 122780 KB Output is correct
91 Correct 459 ms 113144 KB Output is correct
92 Correct 388 ms 112280 KB Output is correct
93 Correct 419 ms 117200 KB Output is correct
94 Correct 390 ms 122700 KB Output is correct
95 Correct 462 ms 122872 KB Output is correct
96 Correct 355 ms 116228 KB Output is correct
97 Correct 346 ms 125264 KB Output is correct
98 Correct 373 ms 123288 KB Output is correct
99 Correct 361 ms 123680 KB Output is correct
100 Correct 313 ms 116600 KB Output is correct
101 Correct 319 ms 116740 KB Output is correct
102 Correct 654 ms 114296 KB Output is correct
103 Correct 561 ms 112576 KB Output is correct
104 Correct 669 ms 119248 KB Output is correct
105 Correct 501 ms 118648 KB Output is correct
106 Correct 529 ms 121792 KB Output is correct
107 Correct 444 ms 117240 KB Output is correct
108 Correct 841 ms 116280 KB Output is correct
109 Correct 720 ms 123360 KB Output is correct
110 Correct 290 ms 114416 KB Output is correct
111 Correct 353 ms 116296 KB Output is correct
112 Correct 773 ms 110812 KB Output is correct
113 Correct 374 ms 123424 KB Output is correct