#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define sz(a) ((int) a.size())
#define F first
#define S second
const int N = 3e5 + 15;
int n, K;
pair<int, int> a[N];
ll ans = -1e18;
int L = 1, R = 0;
ll cur = 0;
set<pair<int, int>> sm, bg;
void add(int p) {
if(sz(bg) < K) {
cur += a[p].S;
bg.insert({a[p].S, p});
} else {
assert(sz(bg) == K);
if(a[p].S > (*(bg.begin())).F) {
cur -= (*bg.begin()).F;
sm.insert(*bg.begin());
bg.erase(bg.begin());
bg.insert({a[p].S, p});
cur += a[p].S;
} else {
sm.insert({a[p].S, p});
}
}
}
void del(int p) {
if(bg.count({a[p].S, p})) {
cur -= a[p].S;
bg.erase({a[p].S, p});
if(sz(sm)) {
auto it = sm.end();
it--;
cur += (*it).F;
bg.insert(*it);
sm.erase(it);
}
} else {
assert(sm.find({a[p].S, p}) != sm.end());
sm.erase(sm.find({a[p].S, p}));
}
}
void dnc(int l, int r, int tl, int tr) {
if(l > r) {
return;
}
int m = (l + r) / 2;
int pt = tr;
ll mx = -1e18;
//cout << l << ' ' << r << ' ' << tl << ' ' << tr << '\n';
for(int k = max(m, tl); k <= tr; k++) {
while(R < k) {
add(++R);
}
while(L > m) {
add(--L);
}
while(R > k) {
del(R--);
}
while(L < m) {
del(L++);
}
if(sz(bg) == K && mx <= cur - 2 * (a[k].F - a[m].F)) {
mx = cur - 2 * (a[k].F - a[m].F);
pt = k;
}
}
ans = max(ans, mx);
dnc(l, m - 1, tl, pt);
dnc(m + 1, r, pt, tr);
}
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
cin >> n >> K;
for(int i = 1; i <= n; i++) {
cin >> a[i].S;
cin >> a[i].F;
}
sort(a + 1, a + n + 1);
dnc(1, n, 1, n);
cout << ans << '\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
1 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
600 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
712 KB |
Output is correct |
23 |
Correct |
1 ms |
344 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
344 KB |
Output is correct |
28 |
Correct |
1 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |
34 |
Correct |
1 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
344 KB |
Output is correct |
37 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
1 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
600 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
712 KB |
Output is correct |
23 |
Correct |
1 ms |
344 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
344 KB |
Output is correct |
28 |
Correct |
1 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |
34 |
Correct |
1 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
344 KB |
Output is correct |
37 |
Correct |
0 ms |
348 KB |
Output is correct |
38 |
Correct |
8 ms |
348 KB |
Output is correct |
39 |
Correct |
9 ms |
448 KB |
Output is correct |
40 |
Correct |
8 ms |
560 KB |
Output is correct |
41 |
Correct |
8 ms |
560 KB |
Output is correct |
42 |
Correct |
7 ms |
348 KB |
Output is correct |
43 |
Correct |
7 ms |
348 KB |
Output is correct |
44 |
Correct |
8 ms |
348 KB |
Output is correct |
45 |
Correct |
8 ms |
348 KB |
Output is correct |
46 |
Correct |
9 ms |
348 KB |
Output is correct |
47 |
Correct |
8 ms |
348 KB |
Output is correct |
48 |
Correct |
8 ms |
348 KB |
Output is correct |
49 |
Correct |
8 ms |
348 KB |
Output is correct |
50 |
Correct |
10 ms |
348 KB |
Output is correct |
51 |
Correct |
8 ms |
348 KB |
Output is correct |
52 |
Correct |
8 ms |
552 KB |
Output is correct |
53 |
Correct |
8 ms |
348 KB |
Output is correct |
54 |
Correct |
8 ms |
348 KB |
Output is correct |
55 |
Correct |
7 ms |
568 KB |
Output is correct |
56 |
Correct |
7 ms |
564 KB |
Output is correct |
57 |
Correct |
7 ms |
348 KB |
Output is correct |
58 |
Correct |
9 ms |
348 KB |
Output is correct |
59 |
Correct |
4 ms |
348 KB |
Output is correct |
60 |
Correct |
5 ms |
348 KB |
Output is correct |
61 |
Correct |
4 ms |
348 KB |
Output is correct |
62 |
Correct |
4 ms |
344 KB |
Output is correct |
63 |
Correct |
5 ms |
344 KB |
Output is correct |
64 |
Correct |
4 ms |
348 KB |
Output is correct |
65 |
Correct |
8 ms |
348 KB |
Output is correct |
66 |
Correct |
8 ms |
348 KB |
Output is correct |
67 |
Correct |
8 ms |
600 KB |
Output is correct |
68 |
Correct |
8 ms |
344 KB |
Output is correct |
69 |
Correct |
8 ms |
348 KB |
Output is correct |
70 |
Correct |
8 ms |
560 KB |
Output is correct |
71 |
Correct |
9 ms |
348 KB |
Output is correct |
72 |
Correct |
7 ms |
348 KB |
Output is correct |
73 |
Correct |
4 ms |
348 KB |
Output is correct |
74 |
Correct |
7 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
1 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
600 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
712 KB |
Output is correct |
23 |
Correct |
1 ms |
344 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
344 KB |
Output is correct |
28 |
Correct |
1 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |
34 |
Correct |
1 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
344 KB |
Output is correct |
37 |
Correct |
0 ms |
348 KB |
Output is correct |
38 |
Correct |
8 ms |
348 KB |
Output is correct |
39 |
Correct |
9 ms |
448 KB |
Output is correct |
40 |
Correct |
8 ms |
560 KB |
Output is correct |
41 |
Correct |
8 ms |
560 KB |
Output is correct |
42 |
Correct |
7 ms |
348 KB |
Output is correct |
43 |
Correct |
7 ms |
348 KB |
Output is correct |
44 |
Correct |
8 ms |
348 KB |
Output is correct |
45 |
Correct |
8 ms |
348 KB |
Output is correct |
46 |
Correct |
9 ms |
348 KB |
Output is correct |
47 |
Correct |
8 ms |
348 KB |
Output is correct |
48 |
Correct |
8 ms |
348 KB |
Output is correct |
49 |
Correct |
8 ms |
348 KB |
Output is correct |
50 |
Correct |
10 ms |
348 KB |
Output is correct |
51 |
Correct |
8 ms |
348 KB |
Output is correct |
52 |
Correct |
8 ms |
552 KB |
Output is correct |
53 |
Correct |
8 ms |
348 KB |
Output is correct |
54 |
Correct |
8 ms |
348 KB |
Output is correct |
55 |
Correct |
7 ms |
568 KB |
Output is correct |
56 |
Correct |
7 ms |
564 KB |
Output is correct |
57 |
Correct |
7 ms |
348 KB |
Output is correct |
58 |
Correct |
9 ms |
348 KB |
Output is correct |
59 |
Correct |
4 ms |
348 KB |
Output is correct |
60 |
Correct |
5 ms |
348 KB |
Output is correct |
61 |
Correct |
4 ms |
348 KB |
Output is correct |
62 |
Correct |
4 ms |
344 KB |
Output is correct |
63 |
Correct |
5 ms |
344 KB |
Output is correct |
64 |
Correct |
4 ms |
348 KB |
Output is correct |
65 |
Correct |
8 ms |
348 KB |
Output is correct |
66 |
Correct |
8 ms |
348 KB |
Output is correct |
67 |
Correct |
8 ms |
600 KB |
Output is correct |
68 |
Correct |
8 ms |
344 KB |
Output is correct |
69 |
Correct |
8 ms |
348 KB |
Output is correct |
70 |
Correct |
8 ms |
560 KB |
Output is correct |
71 |
Correct |
9 ms |
348 KB |
Output is correct |
72 |
Correct |
7 ms |
348 KB |
Output is correct |
73 |
Correct |
4 ms |
348 KB |
Output is correct |
74 |
Correct |
7 ms |
348 KB |
Output is correct |
75 |
Correct |
2841 ms |
11656 KB |
Output is correct |
76 |
Correct |
2645 ms |
11176 KB |
Output is correct |
77 |
Correct |
2652 ms |
11368 KB |
Output is correct |
78 |
Correct |
2744 ms |
11996 KB |
Output is correct |
79 |
Correct |
2208 ms |
11600 KB |
Output is correct |
80 |
Correct |
2208 ms |
11376 KB |
Output is correct |
81 |
Correct |
2717 ms |
9864 KB |
Output is correct |
82 |
Correct |
2706 ms |
9392 KB |
Output is correct |
83 |
Correct |
2808 ms |
9840 KB |
Output is correct |
84 |
Correct |
2792 ms |
9844 KB |
Output is correct |
85 |
Correct |
2673 ms |
9956 KB |
Output is correct |
86 |
Correct |
2319 ms |
10212 KB |
Output is correct |
87 |
Correct |
2391 ms |
10116 KB |
Output is correct |
88 |
Correct |
2469 ms |
9800 KB |
Output is correct |
89 |
Correct |
2762 ms |
10348 KB |
Output is correct |
90 |
Correct |
2565 ms |
10900 KB |
Output is correct |
91 |
Correct |
2268 ms |
10352 KB |
Output is correct |
92 |
Correct |
2246 ms |
10320 KB |
Output is correct |
93 |
Correct |
2382 ms |
10480 KB |
Output is correct |
94 |
Correct |
2518 ms |
11408 KB |
Output is correct |
95 |
Correct |
2599 ms |
10836 KB |
Output is correct |
96 |
Correct |
731 ms |
9104 KB |
Output is correct |
97 |
Correct |
750 ms |
9688 KB |
Output is correct |
98 |
Correct |
728 ms |
9588 KB |
Output is correct |
99 |
Correct |
738 ms |
10104 KB |
Output is correct |
100 |
Correct |
722 ms |
10324 KB |
Output is correct |
101 |
Correct |
721 ms |
10124 KB |
Output is correct |
102 |
Correct |
1934 ms |
9212 KB |
Output is correct |
103 |
Correct |
1834 ms |
9848 KB |
Output is correct |
104 |
Correct |
1979 ms |
9476 KB |
Output is correct |
105 |
Correct |
1961 ms |
10580 KB |
Output is correct |
106 |
Correct |
1964 ms |
10576 KB |
Output is correct |
107 |
Correct |
1772 ms |
10500 KB |
Output is correct |
108 |
Correct |
2784 ms |
11716 KB |
Output is correct |
109 |
Correct |
2888 ms |
12420 KB |
Output is correct |
110 |
Correct |
1388 ms |
10340 KB |
Output is correct |
111 |
Correct |
1542 ms |
9556 KB |
Output is correct |
112 |
Correct |
833 ms |
11132 KB |
Output is correct |
113 |
Correct |
2188 ms |
11988 KB |
Output is correct |