oj.uz

답안 #411079

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
411079 2021-05-24T09:41:53 Z alireza_kaviani Cake 3 (JOI19_cake3) C++11
100 / 100
 1002 ms 26708 KB 
#include <bits/stdc++.h>
using namespace std;

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

#define all(x)						(x).begin(),(x).end()
#define X							first
#define Y							second
#define sep							' '
#define endl						'\n'
#define SZ(x)						ll(x.size())

const ll MAXN = (1 << 20);
const ll LOG = 20;
const ll INF = 8e18;
const ll MOD = 1e9 + 7; //998244353; //1e9 + 9;

ll n , m , curl = 1 , curr = 0 , V[MAXN] , C[MAXN] , val[MAXN] , ans[MAXN] , fen[2][MAXN];
vector<pll> vec , compress;

void add(int ind , int x , int val){
	for(x++; x < MAXN ; x += x & -x)	fen[ind][x] += val;
}

ll get(int ind , int x){
	ll ans = 0;
	for(x++; x ; x -= x & -x)	ans += fen[ind][x];
	return ans;
}

ll find(ll val){
	int ans = 0;
	for(int i = LOG - 1 ; i >= 0 ; i--){
		if(fen[0][ans + (1 << i)] < val){
			val -= fen[0][ans + (1 << i)];
			ans += (1 << i);
		}
	}
	return ans;
}

ll calc(){
	int ind = find(m - 2);
	return get(1 , ind);
}

void insert(int i , int x){
	add(0 , val[i] , 1 * x);
	add(1 , val[i] , V[i] * x);
//	cout << i << sep << x << sep << calc() << endl;
}

void move(int l , int r){
	while(curr < r)	insert(++curr , 1);
	while(l < curl)	insert(--curl , 1);
	while(r < curr)	insert(curr-- , -1);
	while(curl < l)	insert(curl++ , -1);
}

void solve(int l , int r , int optl , int optr){
	if(r < l)	return;
	int mid = l + r >> 1 , opt = -1;
	for(int i = optl ; i <= min(optr , mid - (int)m + 1) ; i++){
		move(i + 1 , mid - 1);
//		cout << i << sep << mid << sep << sum << endl;
		ll sum = calc();
		if(sum + V[mid] + V[i] - C[mid] + C[i] > ans[mid]){
			ans[mid] = sum + V[mid] - C[mid] + V[i] + C[i];
			opt = i;
		}
	}
	solve(l , mid - 1 , optl , opt);
	solve(mid + 1 , r , opt , optr);
}

int main() {
    ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
	fill(ans , ans + MAXN , -INF);
	cin >> n >> m;
	for(int i = 1 ; i <= n ; i++){
		cin >> V[i] >> C[i];
		vec.push_back({C[i] , V[i]});
	}
	sort(all(vec));
	for(int i = 1 ; i <= n ; i++){
		C[i] = vec[i - 1].X * 2;
		V[i] = vec[i - 1].Y;
		compress.push_back({V[i] , i});
	}
	sort(all(compress) , greater<pll>());
	for(int i = 0 ; i < n ; i++){
		val[compress[i].Y] = i;
	}
	solve(m , n , 1 , n);
	ll res = -INF;
	for(int i = 1 ; i <= n ; i++)	res = max(res , ans[i]);
	cout << res << endl;

    return 0;
}
/*

*/

Compilation message

cake3.cpp: In function 'void solve(int, int, int, int)':
cake3.cpp:64:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   64 |  int mid = l + r >> 1 , opt = -1;
      |            ~~^~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 8652 KB Output is correct
2 Correct 6 ms 8672 KB Output is correct
3 Correct 5 ms 8652 KB Output is correct
4 Correct 5 ms 8652 KB Output is correct
5 Correct 4 ms 8652 KB Output is correct
6 Correct 4 ms 8652 KB Output is correct
7 Correct 4 ms 8652 KB Output is correct
8 Correct 5 ms 8652 KB Output is correct
9 Correct 5 ms 8652 KB Output is correct
10 Correct 5 ms 8652 KB Output is correct
11 Correct 6 ms 8652 KB Output is correct
12 Correct 4 ms 8652 KB Output is correct
13 Correct 4 ms 8608 KB Output is correct
14 Correct 5 ms 8652 KB Output is correct
15 Correct 5 ms 8652 KB Output is correct
16 Correct 4 ms 8652 KB Output is correct
17 Correct 4 ms 8652 KB Output is correct
18 Correct 4 ms 8652 KB Output is correct
19 Correct 4 ms 8652 KB Output is correct
20 Correct 5 ms 8652 KB Output is correct
21 Correct 5 ms 8652 KB Output is correct
22 Correct 5 ms 8652 KB Output is correct
23 Correct 5 ms 8624 KB Output is correct
24 Correct 5 ms 8652 KB Output is correct
25 Correct 5 ms 8640 KB Output is correct
26 Correct 5 ms 8564 KB Output is correct
27 Correct 5 ms 8652 KB Output is correct
28 Correct 5 ms 8608 KB Output is correct
29 Correct 5 ms 8660 KB Output is correct
30 Correct 5 ms 8640 KB Output is correct
31 Correct 5 ms 8652 KB Output is correct
32 Correct 5 ms 8596 KB Output is correct
33 Correct 5 ms 8584 KB Output is correct
34 Correct 5 ms 8652 KB Output is correct
35 Correct 5 ms 8652 KB Output is correct
36 Correct 5 ms 8652 KB Output is correct
37 Correct 5 ms 8660 KB Output is correct

Subtask #2
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 8652 KB Output is correct
2 Correct 6 ms 8672 KB Output is correct
3 Correct 5 ms 8652 KB Output is correct
4 Correct 5 ms 8652 KB Output is correct
5 Correct 4 ms 8652 KB Output is correct
6 Correct 4 ms 8652 KB Output is correct
7 Correct 4 ms 8652 KB Output is correct
8 Correct 5 ms 8652 KB Output is correct
9 Correct 5 ms 8652 KB Output is correct
10 Correct 5 ms 8652 KB Output is correct
11 Correct 6 ms 8652 KB Output is correct
12 Correct 4 ms 8652 KB Output is correct
13 Correct 4 ms 8608 KB Output is correct
14 Correct 5 ms 8652 KB Output is correct
15 Correct 5 ms 8652 KB Output is correct
16 Correct 4 ms 8652 KB Output is correct
17 Correct 4 ms 8652 KB Output is correct
18 Correct 4 ms 8652 KB Output is correct
19 Correct 4 ms 8652 KB Output is correct
20 Correct 5 ms 8652 KB Output is correct
21 Correct 5 ms 8652 KB Output is correct
22 Correct 5 ms 8652 KB Output is correct
23 Correct 5 ms 8624 KB Output is correct
24 Correct 5 ms 8652 KB Output is correct
25 Correct 5 ms 8640 KB Output is correct
26 Correct 5 ms 8564 KB Output is correct
27 Correct 5 ms 8652 KB Output is correct
28 Correct 5 ms 8608 KB Output is correct
29 Correct 5 ms 8660 KB Output is correct
30 Correct 5 ms 8640 KB Output is correct
31 Correct 5 ms 8652 KB Output is correct
32 Correct 5 ms 8596 KB Output is correct
33 Correct 5 ms 8584 KB Output is correct
34 Correct 5 ms 8652 KB Output is correct
35 Correct 5 ms 8652 KB Output is correct
36 Correct 5 ms 8652 KB Output is correct
37 Correct 5 ms 8660 KB Output is correct
38 Correct 11 ms 8804 KB Output is correct
39 Correct 11 ms 8856 KB Output is correct
40 Correct 8 ms 8780 KB Output is correct
41 Correct 9 ms 8780 KB Output is correct
42 Correct 8 ms 8800 KB Output is correct
43 Correct 9 ms 8792 KB Output is correct
44 Correct 11 ms 8836 KB Output is correct
45 Correct 12 ms 8848 KB Output is correct
46 Correct 11 ms 8760 KB Output is correct
47 Correct 11 ms 8780 KB Output is correct
48 Correct 11 ms 8780 KB Output is correct
49 Correct 9 ms 8780 KB Output is correct
50 Correct 10 ms 8780 KB Output is correct
51 Correct 9 ms 8780 KB Output is correct
52 Correct 9 ms 8804 KB Output is correct
53 Correct 9 ms 8800 KB Output is correct
54 Correct 7 ms 8780 KB Output is correct
55 Correct 7 ms 8804 KB Output is correct
56 Correct 7 ms 8788 KB Output is correct
57 Correct 7 ms 8780 KB Output is correct
58 Correct 13 ms 8760 KB Output is correct
59 Correct 9 ms 8756 KB Output is correct
60 Correct 10 ms 8844 KB Output is correct
61 Correct 9 ms 8840 KB Output is correct
62 Correct 8 ms 8780 KB Output is correct
63 Correct 9 ms 8904 KB Output is correct
64 Correct 8 ms 8780 KB Output is correct
65 Correct 11 ms 8800 KB Output is correct
66 Correct 10 ms 8780 KB Output is correct
67 Correct 11 ms 8780 KB Output is correct
68 Correct 10 ms 8780 KB Output is correct
69 Correct 10 ms 8844 KB Output is correct
70 Correct 11 ms 8800 KB Output is correct
71 Correct 9 ms 8800 KB Output is correct
72 Correct 7 ms 8820 KB Output is correct
73 Correct 9 ms 8816 KB Output is correct
74 Correct 6 ms 8780 KB Output is correct

Subtask #3
76.0 / 76.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 8652 KB Output is correct
2 Correct 6 ms 8672 KB Output is correct
3 Correct 5 ms 8652 KB Output is correct
4 Correct 5 ms 8652 KB Output is correct
5 Correct 4 ms 8652 KB Output is correct
6 Correct 4 ms 8652 KB Output is correct
7 Correct 4 ms 8652 KB Output is correct
8 Correct 5 ms 8652 KB Output is correct
9 Correct 5 ms 8652 KB Output is correct
10 Correct 5 ms 8652 KB Output is correct
11 Correct 6 ms 8652 KB Output is correct
12 Correct 4 ms 8652 KB Output is correct
13 Correct 4 ms 8608 KB Output is correct
14 Correct 5 ms 8652 KB Output is correct
15 Correct 5 ms 8652 KB Output is correct
16 Correct 4 ms 8652 KB Output is correct
17 Correct 4 ms 8652 KB Output is correct
18 Correct 4 ms 8652 KB Output is correct
19 Correct 4 ms 8652 KB Output is correct
20 Correct 5 ms 8652 KB Output is correct
21 Correct 5 ms 8652 KB Output is correct
22 Correct 5 ms 8652 KB Output is correct
23 Correct 5 ms 8624 KB Output is correct
24 Correct 5 ms 8652 KB Output is correct
25 Correct 5 ms 8640 KB Output is correct
26 Correct 5 ms 8564 KB Output is correct
27 Correct 5 ms 8652 KB Output is correct
28 Correct 5 ms 8608 KB Output is correct
29 Correct 5 ms 8660 KB Output is correct
30 Correct 5 ms 8640 KB Output is correct
31 Correct 5 ms 8652 KB Output is correct
32 Correct 5 ms 8596 KB Output is correct
33 Correct 5 ms 8584 KB Output is correct
34 Correct 5 ms 8652 KB Output is correct
35 Correct 5 ms 8652 KB Output is correct
36 Correct 5 ms 8652 KB Output is correct
37 Correct 5 ms 8660 KB Output is correct
38 Correct 11 ms 8804 KB Output is correct
39 Correct 11 ms 8856 KB Output is correct
40 Correct 8 ms 8780 KB Output is correct
41 Correct 9 ms 8780 KB Output is correct
42 Correct 8 ms 8800 KB Output is correct
43 Correct 9 ms 8792 KB Output is correct
44 Correct 11 ms 8836 KB Output is correct
45 Correct 12 ms 8848 KB Output is correct
46 Correct 11 ms 8760 KB Output is correct
47 Correct 11 ms 8780 KB Output is correct
48 Correct 11 ms 8780 KB Output is correct
49 Correct 9 ms 8780 KB Output is correct
50 Correct 10 ms 8780 KB Output is correct
51 Correct 9 ms 8780 KB Output is correct
52 Correct 9 ms 8804 KB Output is correct
53 Correct 9 ms 8800 KB Output is correct
54 Correct 7 ms 8780 KB Output is correct
55 Correct 7 ms 8804 KB Output is correct
56 Correct 7 ms 8788 KB Output is correct
57 Correct 7 ms 8780 KB Output is correct
58 Correct 13 ms 8760 KB Output is correct
59 Correct 9 ms 8756 KB Output is correct
60 Correct 10 ms 8844 KB Output is correct
61 Correct 9 ms 8840 KB Output is correct
62 Correct 8 ms 8780 KB Output is correct
63 Correct 9 ms 8904 KB Output is correct
64 Correct 8 ms 8780 KB Output is correct
65 Correct 11 ms 8800 KB Output is correct
66 Correct 10 ms 8780 KB Output is correct
67 Correct 11 ms 8780 KB Output is correct
68 Correct 10 ms 8780 KB Output is correct
69 Correct 10 ms 8844 KB Output is correct
70 Correct 11 ms 8800 KB Output is correct
71 Correct 9 ms 8800 KB Output is correct
72 Correct 7 ms 8820 KB Output is correct
73 Correct 9 ms 8816 KB Output is correct
74 Correct 6 ms 8780 KB Output is correct
75 Correct 764 ms 22708 KB Output is correct
76 Correct 942 ms 22316 KB Output is correct
77 Correct 665 ms 25644 KB Output is correct
78 Correct 729 ms 25900 KB Output is correct
79 Correct 130 ms 25728 KB Output is correct
80 Correct 170 ms 25264 KB Output is correct
81 Correct 747 ms 24932 KB Output is correct
82 Correct 1002 ms 25176 KB Output is correct
83 Correct 858 ms 25660 KB Output is correct
84 Correct 911 ms 25636 KB Output is correct
85 Correct 761 ms 25012 KB Output is correct
86 Correct 426 ms 24472 KB Output is correct
87 Correct 433 ms 24312 KB Output is correct
88 Correct 697 ms 24156 KB Output is correct
89 Correct 686 ms 25000 KB Output is correct
90 Correct 438 ms 25648 KB Output is correct
91 Correct 286 ms 24432 KB Output is correct
92 Correct 287 ms 24248 KB Output is correct
93 Correct 360 ms 25008 KB Output is correct
94 Correct 245 ms 25788 KB Output is correct
95 Correct 411 ms 25776 KB Output is correct
96 Correct 506 ms 24400 KB Output is correct
97 Correct 554 ms 25620 KB Output is correct
98 Correct 577 ms 25388 KB Output is correct
99 Correct 537 ms 25436 KB Output is correct
100 Correct 428 ms 24488 KB Output is correct
101 Correct 422 ms 24504 KB Output is correct
102 Correct 779 ms 24524 KB Output is correct
103 Correct 723 ms 24356 KB Output is correct
104 Correct 860 ms 25276 KB Output is correct
105 Correct 617 ms 25228 KB Output is correct
106 Correct 617 ms 25588 KB Output is correct
107 Correct 544 ms 24876 KB Output is correct
108 Correct 655 ms 25520 KB Output is correct
109 Correct 537 ms 26416 KB Output is correct
110 Correct 330 ms 24084 KB Output is correct
111 Correct 476 ms 24236 KB Output is correct
112 Correct 373 ms 23500 KB Output is correct
113 Correct 121 ms 26708 KB Output is correct