//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define mem(a,v) memset((a), (v), sizeof (a))
#define enl printf("\n")
#define case(t) printf("Case #%d: ", (t))
#define ni(n) scanf("%d", &(n))
#define nl(n) scanf("%lld", &(n))
#define nai(a, n) for (int i = 0; i < (n); i++) ni(a[i])
#define nal(a, n) for (int i = 0; i < (n); i++) nl(a[i])
#define pri(n) printf("%d\n", (n))
#define prl(n) printf("%lld\n", (n))
#define pii pair<int, int>
#define pil pair<int, long long>
#define pll pair<long long, long long>
#define vii vector<pii>
#define vil vector<pil>
#define vll vector<pll>
#define vi vector<int>
#define vl vector<long long>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
typedef cc_hash_table<int,int,hash<int>> ht;
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> oset;
const double pi = acos(-1);
const int MOD = 1e9 + 7;
const ll INF = 1e16 + 7;
const int MAXN = 2e5 + 5;
const double eps = 1e-9;
pair<pii,int> a[MAXN];
ll ans = -INF;
int n, m, curL = 0, curR = -1;
pair<ll,int> seg[MAXN*4];
void upd(int l, int r, int k, int a, ll val) {
if (r < a || a < l) return;
if (a <= l && r <= a) {
if (val < 0)
seg[k] = {0, 0};
else
seg[k] = {val, 1};
return;
}
int mi = (l + r) / 2;
upd(l, mi, k*2, a, val);
upd(mi+1, r, k*2+1, a, val);
seg[k].fi = seg[k*2].fi + seg[k*2+1].fi;
seg[k].se = seg[k*2].se + seg[k*2+1].se;
}
pair<ll,int> qry(int l, int r, int k, int cnt) {
if (seg[k].se <= cnt) return seg[k];
int mi = (l + r) / 2;
pair<ll,int> t1 = qry(mi+1, r, k*2+1, cnt);
if (t1.se >= cnt) return t1;
pair<ll,int> t2 = qry(l, mi, k*2, cnt - t1.se);
return mp(t1.fi+t2.fi, t1.se+t2.se);
}
ll qry(int lo, int hi) {
if (hi - lo + 1 < m)
return -INF;
while (curL > lo) {
curL--;
upd(0, n-1, 1, a[curL].se, a[curL].fi.se);
}
while (curR < hi) {
curR++;
upd(0, n-1, 1, a[curR].se, a[curR].fi.se);
}
while (curL < lo) {
upd(0, n-1, 1, a[curL].se, -1);
curL++;
}
while (curR > hi) {
upd(0, n-1, 1, a[curR].se, -1);
curR--;
}
/*upd(0, n-1, 1, a[lo].se, -1);
upd(0, n-1, 1, a[hi].se, -1);
ll ret = qry(0, n-1, 1, m-2).fi + a[lo].fi.se + a[hi].fi.se - 2 * (a[hi].fi.fi - a[lo].fi.fi);
upd(0, n-1, 1, a[lo].se, a[lo].fi.se);
upd(0, n-1, 1, a[hi].se, a[hi].fi.se);*/
ll ret = qry(0, n-1, 1, m).fi - 2 * (a[hi].fi.fi - a[lo].fi.fi);
return ret;
}
void dfs(int l, int r, int oL, int oR) {
if (l > r) return;
int mi = (l + r) / 2, nx = oL;
ll val = -INF;
for (int i = max(oL, mi + m-1); i <= oR; i++) {
ll tmp = qry(mi, i);
if (tmp > val)
tie(nx, val) = mp(i, tmp);
}
ans = max(ans, val);
dfs(l, mi-1, oL, nx);
dfs(mi+1, r, nx, oR);
}
int main() {
assert(scanf("%d %d", &n, &m) == 2);
for (int i = 0; i < n; i++) {
assert(scanf("%d %d", &a[i].fi.fi, &a[i].fi.se) == 2);
a[i].se = 0;
}
sort(a, a + n);
for (int i = 0; i < n; i++) {
a[i].se = i;
swap(a[i].fi.fi, a[i].fi.se);
}
sort(a, a + n);
dfs(0, n-m, 0, n-1);
prl(ans);
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
512 KB |
Output is correct |
2 |
Correct |
3 ms |
384 KB |
Output is correct |
3 |
Correct |
3 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
3 ms |
384 KB |
Output is correct |
8 |
Correct |
3 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
512 KB |
Output is correct |
10 |
Correct |
2 ms |
384 KB |
Output is correct |
11 |
Correct |
2 ms |
384 KB |
Output is correct |
12 |
Correct |
2 ms |
384 KB |
Output is correct |
13 |
Correct |
3 ms |
384 KB |
Output is correct |
14 |
Correct |
3 ms |
384 KB |
Output is correct |
15 |
Correct |
2 ms |
384 KB |
Output is correct |
16 |
Correct |
2 ms |
384 KB |
Output is correct |
17 |
Correct |
0 ms |
384 KB |
Output is correct |
18 |
Correct |
3 ms |
384 KB |
Output is correct |
19 |
Correct |
2 ms |
384 KB |
Output is correct |
20 |
Correct |
3 ms |
384 KB |
Output is correct |
21 |
Correct |
2 ms |
384 KB |
Output is correct |
22 |
Correct |
3 ms |
384 KB |
Output is correct |
23 |
Correct |
2 ms |
384 KB |
Output is correct |
24 |
Correct |
2 ms |
384 KB |
Output is correct |
25 |
Correct |
3 ms |
384 KB |
Output is correct |
26 |
Correct |
2 ms |
384 KB |
Output is correct |
27 |
Correct |
3 ms |
356 KB |
Output is correct |
28 |
Correct |
3 ms |
384 KB |
Output is correct |
29 |
Correct |
2 ms |
384 KB |
Output is correct |
30 |
Correct |
2 ms |
384 KB |
Output is correct |
31 |
Correct |
2 ms |
384 KB |
Output is correct |
32 |
Correct |
2 ms |
384 KB |
Output is correct |
33 |
Correct |
3 ms |
384 KB |
Output is correct |
34 |
Correct |
3 ms |
384 KB |
Output is correct |
35 |
Correct |
2 ms |
384 KB |
Output is correct |
36 |
Correct |
3 ms |
384 KB |
Output is correct |
37 |
Correct |
0 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
512 KB |
Output is correct |
2 |
Correct |
3 ms |
384 KB |
Output is correct |
3 |
Correct |
3 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
3 ms |
384 KB |
Output is correct |
8 |
Correct |
3 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
512 KB |
Output is correct |
10 |
Correct |
2 ms |
384 KB |
Output is correct |
11 |
Correct |
2 ms |
384 KB |
Output is correct |
12 |
Correct |
2 ms |
384 KB |
Output is correct |
13 |
Correct |
3 ms |
384 KB |
Output is correct |
14 |
Correct |
3 ms |
384 KB |
Output is correct |
15 |
Correct |
2 ms |
384 KB |
Output is correct |
16 |
Correct |
2 ms |
384 KB |
Output is correct |
17 |
Correct |
0 ms |
384 KB |
Output is correct |
18 |
Correct |
3 ms |
384 KB |
Output is correct |
19 |
Correct |
2 ms |
384 KB |
Output is correct |
20 |
Correct |
3 ms |
384 KB |
Output is correct |
21 |
Correct |
2 ms |
384 KB |
Output is correct |
22 |
Correct |
3 ms |
384 KB |
Output is correct |
23 |
Correct |
2 ms |
384 KB |
Output is correct |
24 |
Correct |
2 ms |
384 KB |
Output is correct |
25 |
Correct |
3 ms |
384 KB |
Output is correct |
26 |
Correct |
2 ms |
384 KB |
Output is correct |
27 |
Correct |
3 ms |
356 KB |
Output is correct |
28 |
Correct |
3 ms |
384 KB |
Output is correct |
29 |
Correct |
2 ms |
384 KB |
Output is correct |
30 |
Correct |
2 ms |
384 KB |
Output is correct |
31 |
Correct |
2 ms |
384 KB |
Output is correct |
32 |
Correct |
2 ms |
384 KB |
Output is correct |
33 |
Correct |
3 ms |
384 KB |
Output is correct |
34 |
Correct |
3 ms |
384 KB |
Output is correct |
35 |
Correct |
2 ms |
384 KB |
Output is correct |
36 |
Correct |
3 ms |
384 KB |
Output is correct |
37 |
Correct |
0 ms |
384 KB |
Output is correct |
38 |
Correct |
11 ms |
512 KB |
Output is correct |
39 |
Correct |
11 ms |
500 KB |
Output is correct |
40 |
Correct |
6 ms |
384 KB |
Output is correct |
41 |
Correct |
7 ms |
512 KB |
Output is correct |
42 |
Correct |
5 ms |
384 KB |
Output is correct |
43 |
Correct |
6 ms |
384 KB |
Output is correct |
44 |
Correct |
10 ms |
384 KB |
Output is correct |
45 |
Correct |
10 ms |
508 KB |
Output is correct |
46 |
Correct |
11 ms |
384 KB |
Output is correct |
47 |
Correct |
11 ms |
384 KB |
Output is correct |
48 |
Correct |
8 ms |
484 KB |
Output is correct |
49 |
Correct |
8 ms |
384 KB |
Output is correct |
50 |
Correct |
8 ms |
384 KB |
Output is correct |
51 |
Correct |
9 ms |
384 KB |
Output is correct |
52 |
Correct |
7 ms |
512 KB |
Output is correct |
53 |
Correct |
8 ms |
384 KB |
Output is correct |
54 |
Correct |
8 ms |
384 KB |
Output is correct |
55 |
Correct |
6 ms |
384 KB |
Output is correct |
56 |
Correct |
5 ms |
356 KB |
Output is correct |
57 |
Correct |
5 ms |
512 KB |
Output is correct |
58 |
Correct |
4 ms |
384 KB |
Output is correct |
59 |
Correct |
7 ms |
384 KB |
Output is correct |
60 |
Correct |
9 ms |
384 KB |
Output is correct |
61 |
Correct |
6 ms |
384 KB |
Output is correct |
62 |
Correct |
6 ms |
384 KB |
Output is correct |
63 |
Correct |
7 ms |
384 KB |
Output is correct |
64 |
Correct |
5 ms |
384 KB |
Output is correct |
65 |
Correct |
9 ms |
384 KB |
Output is correct |
66 |
Correct |
8 ms |
512 KB |
Output is correct |
67 |
Correct |
9 ms |
384 KB |
Output is correct |
68 |
Correct |
7 ms |
384 KB |
Output is correct |
69 |
Correct |
7 ms |
384 KB |
Output is correct |
70 |
Correct |
7 ms |
384 KB |
Output is correct |
71 |
Correct |
41 ms |
384 KB |
Output is correct |
72 |
Correct |
7 ms |
384 KB |
Output is correct |
73 |
Correct |
8 ms |
512 KB |
Output is correct |
74 |
Correct |
4 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
512 KB |
Output is correct |
2 |
Correct |
3 ms |
384 KB |
Output is correct |
3 |
Correct |
3 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
3 ms |
384 KB |
Output is correct |
8 |
Correct |
3 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
512 KB |
Output is correct |
10 |
Correct |
2 ms |
384 KB |
Output is correct |
11 |
Correct |
2 ms |
384 KB |
Output is correct |
12 |
Correct |
2 ms |
384 KB |
Output is correct |
13 |
Correct |
3 ms |
384 KB |
Output is correct |
14 |
Correct |
3 ms |
384 KB |
Output is correct |
15 |
Correct |
2 ms |
384 KB |
Output is correct |
16 |
Correct |
2 ms |
384 KB |
Output is correct |
17 |
Correct |
0 ms |
384 KB |
Output is correct |
18 |
Correct |
3 ms |
384 KB |
Output is correct |
19 |
Correct |
2 ms |
384 KB |
Output is correct |
20 |
Correct |
3 ms |
384 KB |
Output is correct |
21 |
Correct |
2 ms |
384 KB |
Output is correct |
22 |
Correct |
3 ms |
384 KB |
Output is correct |
23 |
Correct |
2 ms |
384 KB |
Output is correct |
24 |
Correct |
2 ms |
384 KB |
Output is correct |
25 |
Correct |
3 ms |
384 KB |
Output is correct |
26 |
Correct |
2 ms |
384 KB |
Output is correct |
27 |
Correct |
3 ms |
356 KB |
Output is correct |
28 |
Correct |
3 ms |
384 KB |
Output is correct |
29 |
Correct |
2 ms |
384 KB |
Output is correct |
30 |
Correct |
2 ms |
384 KB |
Output is correct |
31 |
Correct |
2 ms |
384 KB |
Output is correct |
32 |
Correct |
2 ms |
384 KB |
Output is correct |
33 |
Correct |
3 ms |
384 KB |
Output is correct |
34 |
Correct |
3 ms |
384 KB |
Output is correct |
35 |
Correct |
2 ms |
384 KB |
Output is correct |
36 |
Correct |
3 ms |
384 KB |
Output is correct |
37 |
Correct |
0 ms |
384 KB |
Output is correct |
38 |
Correct |
11 ms |
512 KB |
Output is correct |
39 |
Correct |
11 ms |
500 KB |
Output is correct |
40 |
Correct |
6 ms |
384 KB |
Output is correct |
41 |
Correct |
7 ms |
512 KB |
Output is correct |
42 |
Correct |
5 ms |
384 KB |
Output is correct |
43 |
Correct |
6 ms |
384 KB |
Output is correct |
44 |
Correct |
10 ms |
384 KB |
Output is correct |
45 |
Correct |
10 ms |
508 KB |
Output is correct |
46 |
Correct |
11 ms |
384 KB |
Output is correct |
47 |
Correct |
11 ms |
384 KB |
Output is correct |
48 |
Correct |
8 ms |
484 KB |
Output is correct |
49 |
Correct |
8 ms |
384 KB |
Output is correct |
50 |
Correct |
8 ms |
384 KB |
Output is correct |
51 |
Correct |
9 ms |
384 KB |
Output is correct |
52 |
Correct |
7 ms |
512 KB |
Output is correct |
53 |
Correct |
8 ms |
384 KB |
Output is correct |
54 |
Correct |
8 ms |
384 KB |
Output is correct |
55 |
Correct |
6 ms |
384 KB |
Output is correct |
56 |
Correct |
5 ms |
356 KB |
Output is correct |
57 |
Correct |
5 ms |
512 KB |
Output is correct |
58 |
Correct |
4 ms |
384 KB |
Output is correct |
59 |
Correct |
7 ms |
384 KB |
Output is correct |
60 |
Correct |
9 ms |
384 KB |
Output is correct |
61 |
Correct |
6 ms |
384 KB |
Output is correct |
62 |
Correct |
6 ms |
384 KB |
Output is correct |
63 |
Correct |
7 ms |
384 KB |
Output is correct |
64 |
Correct |
5 ms |
384 KB |
Output is correct |
65 |
Correct |
9 ms |
384 KB |
Output is correct |
66 |
Correct |
8 ms |
512 KB |
Output is correct |
67 |
Correct |
9 ms |
384 KB |
Output is correct |
68 |
Correct |
7 ms |
384 KB |
Output is correct |
69 |
Correct |
7 ms |
384 KB |
Output is correct |
70 |
Correct |
7 ms |
384 KB |
Output is correct |
71 |
Correct |
41 ms |
384 KB |
Output is correct |
72 |
Correct |
7 ms |
384 KB |
Output is correct |
73 |
Correct |
8 ms |
512 KB |
Output is correct |
74 |
Correct |
4 ms |
384 KB |
Output is correct |
75 |
Correct |
2358 ms |
10780 KB |
Output is correct |
76 |
Correct |
2990 ms |
14328 KB |
Output is correct |
77 |
Correct |
1951 ms |
14456 KB |
Output is correct |
78 |
Correct |
2377 ms |
14568 KB |
Output is correct |
79 |
Correct |
187 ms |
14588 KB |
Output is correct |
80 |
Correct |
379 ms |
14352 KB |
Output is correct |
81 |
Correct |
2139 ms |
13688 KB |
Output is correct |
82 |
Correct |
2893 ms |
13740 KB |
Output is correct |
83 |
Correct |
2532 ms |
13888 KB |
Output is correct |
84 |
Correct |
2406 ms |
13944 KB |
Output is correct |
85 |
Correct |
2050 ms |
13664 KB |
Output is correct |
86 |
Correct |
1012 ms |
13560 KB |
Output is correct |
87 |
Correct |
1190 ms |
13432 KB |
Output is correct |
88 |
Correct |
1895 ms |
13532 KB |
Output is correct |
89 |
Correct |
1654 ms |
13676 KB |
Output is correct |
90 |
Correct |
1277 ms |
13872 KB |
Output is correct |
91 |
Correct |
768 ms |
13576 KB |
Output is correct |
92 |
Correct |
815 ms |
13432 KB |
Output is correct |
93 |
Correct |
928 ms |
13816 KB |
Output is correct |
94 |
Correct |
620 ms |
13820 KB |
Output is correct |
95 |
Correct |
1099 ms |
13872 KB |
Output is correct |
96 |
Correct |
997 ms |
13560 KB |
Output is correct |
97 |
Correct |
1106 ms |
13840 KB |
Output is correct |
98 |
Correct |
1010 ms |
13660 KB |
Output is correct |
99 |
Correct |
978 ms |
13780 KB |
Output is correct |
100 |
Correct |
687 ms |
13432 KB |
Output is correct |
101 |
Correct |
755 ms |
13560 KB |
Output is correct |
102 |
Correct |
1611 ms |
13532 KB |
Output is correct |
103 |
Correct |
1641 ms |
13536 KB |
Output is correct |
104 |
Correct |
1937 ms |
13696 KB |
Output is correct |
105 |
Correct |
1490 ms |
13776 KB |
Output is correct |
106 |
Correct |
1584 ms |
13816 KB |
Output is correct |
107 |
Correct |
1386 ms |
13724 KB |
Output is correct |
108 |
Correct |
2112 ms |
14324 KB |
Output is correct |
109 |
Correct |
1465 ms |
14712 KB |
Output is correct |
110 |
Correct |
944 ms |
13148 KB |
Output is correct |
111 |
Correct |
1421 ms |
13048 KB |
Output is correct |
112 |
Correct |
1348 ms |
12924 KB |
Output is correct |
113 |
Correct |
186 ms |
14880 KB |
Output is correct |