oj.uz

Submission #389738

# Submission time Handle Problem Language Result Execution time Memory
389738 2021-04-14T12:28:48 Z cgiosy Cake 3 (JOI19_cake3) C++17
100 / 100
 660 ms 92400 KB 
#include <bits/stdc++.h>
using namespace std;
using ll=long long;

struct cake {
	int v, x;
	bool operator<(cake b) const { return x<b.x; }
};
struct node {
	ll v; int c, l, r;
};
int main() {
	ios::sync_with_stdio(0);cin.tie(0);
	int N, M;
	cin>>N>>M;
	cake A[N];
	int V[N];
	for(int i=0; i<N; i++) cin>>A[i].v>>A[i].x, V[i]=A[i].v;
	sort(A, A+N);
	sort(V, V+N);

	node T[3800100]{};
	int t=N;
	for(int i=0; i<N; i++) {
		int y=A[i].v, x=lower_bound(V, V+N, y)-V, p=i, q=i+1, s=0, e=N-1;
		while(s<e) {
			int m=s+e>>1;
			T[q].l=T[p].l, T[q].r=T[p].r;
			if(x<=m) T[q].v=T[p].v, T[q].c=T[p].c, e=m, p=T[p].l, q=T[q].l=++t;
			else T[q].v=T[p].v+y, T[q].c=T[p].c+1, s=m+1, p=T[p].r, q=T[q].r=++t;
		}
	}

	auto qry=[&](int l, int r) {
		int s=0, e=N-1, n=M;
		ll v=0;
		while(s<e) {
			int m=s+e>>1, c=T[r].c-T[l].c;
			if(n<=c) s=m+1, l=T[l].r, r=T[r].r;
			else v+=T[r].v-T[l].v, n-=c, e=m, l=T[l].l, r=T[r].l;
		}
		return v+ll(V[e])*n;
	};
	auto f=[&](int l, int r) {
		return qry(l, r)-2*(A[r-1].x-A[l].x);
	};

	ll ans=-1e18;
	function<void(int, int, int, int)> dnc=[&](int l, int r, int s, int e) {
		if(l>r || e-l<M) return;
		int m=l+r>>1, n=e;
		ll p=-1e18;
		for(int i=e; i>=max(s, m+M); i--) if(auto q=f(m, i); p<q) p=q, n=i;
		ans=max(ans, p);
		dnc(l, m-1, s, n), dnc(m+1, r, n, e);
	};
	dnc(0, N-1, M, N);
	cout<<ans<<'\n';
}

Compilation message

cake3.cpp: In function 'int main()':
cake3.cpp:27:11: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   27 |    int m=s+e>>1;
      |          ~^~
cake3.cpp: In lambda function:
cake3.cpp:38:11: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   38 |    int m=s+e>>1, c=T[r].c-T[l].c;
      |          ~^~
cake3.cpp: In lambda function:
cake3.cpp:51:10: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   51 |   int m=l+r>>1, n=e;
      |         ~^~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 89448 KB Output is correct
2 Correct 45 ms 89432 KB Output is correct
3 Correct 42 ms 89472 KB Output is correct
4 Correct 47 ms 89508 KB Output is correct
5 Correct 41 ms 89480 KB Output is correct
6 Correct 41 ms 89412 KB Output is correct
7 Correct 40 ms 89412 KB Output is correct
8 Correct 41 ms 89516 KB Output is correct
9 Correct 42 ms 89448 KB Output is correct
10 Correct 42 ms 89496 KB Output is correct
11 Correct 40 ms 89412 KB Output is correct
12 Correct 40 ms 89448 KB Output is correct
13 Correct 57 ms 89428 KB Output is correct
14 Correct 41 ms 89440 KB Output is correct
15 Correct 47 ms 89412 KB Output is correct
16 Correct 41 ms 89480 KB Output is correct
17 Correct 41 ms 89524 KB Output is correct
18 Correct 41 ms 89484 KB Output is correct
19 Correct 41 ms 89468 KB Output is correct
20 Correct 42 ms 89540 KB Output is correct
21 Correct 40 ms 89552 KB Output is correct
22 Correct 42 ms 89416 KB Output is correct
23 Correct 42 ms 89516 KB Output is correct
24 Correct 41 ms 89548 KB Output is correct
25 Correct 42 ms 89492 KB Output is correct
26 Correct 41 ms 89412 KB Output is correct
27 Correct 42 ms 89472 KB Output is correct
28 Correct 49 ms 89524 KB Output is correct
29 Correct 41 ms 89500 KB Output is correct
30 Correct 42 ms 89456 KB Output is correct
31 Correct 42 ms 89412 KB Output is correct
32 Correct 42 ms 89496 KB Output is correct
33 Correct 42 ms 89512 KB Output is correct
34 Correct 41 ms 89548 KB Output is correct
35 Correct 41 ms 89500 KB Output is correct
36 Correct 41 ms 89540 KB Output is correct
37 Correct 41 ms 89412 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 89448 KB Output is correct
2 Correct 45 ms 89432 KB Output is correct
3 Correct 42 ms 89472 KB Output is correct
4 Correct 47 ms 89508 KB Output is correct
5 Correct 41 ms 89480 KB Output is correct
6 Correct 41 ms 89412 KB Output is correct
7 Correct 40 ms 89412 KB Output is correct
8 Correct 41 ms 89516 KB Output is correct
9 Correct 42 ms 89448 KB Output is correct
10 Correct 42 ms 89496 KB Output is correct
11 Correct 40 ms 89412 KB Output is correct
12 Correct 40 ms 89448 KB Output is correct
13 Correct 57 ms 89428 KB Output is correct
14 Correct 41 ms 89440 KB Output is correct
15 Correct 47 ms 89412 KB Output is correct
16 Correct 41 ms 89480 KB Output is correct
17 Correct 41 ms 89524 KB Output is correct
18 Correct 41 ms 89484 KB Output is correct
19 Correct 41 ms 89468 KB Output is correct
20 Correct 42 ms 89540 KB Output is correct
21 Correct 40 ms 89552 KB Output is correct
22 Correct 42 ms 89416 KB Output is correct
23 Correct 42 ms 89516 KB Output is correct
24 Correct 41 ms 89548 KB Output is correct
25 Correct 42 ms 89492 KB Output is correct
26 Correct 41 ms 89412 KB Output is correct
27 Correct 42 ms 89472 KB Output is correct
28 Correct 49 ms 89524 KB Output is correct
29 Correct 41 ms 89500 KB Output is correct
30 Correct 42 ms 89456 KB Output is correct
31 Correct 42 ms 89412 KB Output is correct
32 Correct 42 ms 89496 KB Output is correct
33 Correct 42 ms 89512 KB Output is correct
34 Correct 41 ms 89548 KB Output is correct
35 Correct 41 ms 89500 KB Output is correct
36 Correct 41 ms 89540 KB Output is correct
37 Correct 41 ms 89412 KB Output is correct
38 Correct 50 ms 89560 KB Output is correct
39 Correct 43 ms 89492 KB Output is correct
40 Correct 42 ms 89580 KB Output is correct
41 Correct 42 ms 89564 KB Output is correct
42 Correct 43 ms 89540 KB Output is correct
43 Correct 49 ms 89488 KB Output is correct
44 Correct 43 ms 89536 KB Output is correct
45 Correct 43 ms 89536 KB Output is correct
46 Correct 43 ms 89540 KB Output is correct
47 Correct 43 ms 89512 KB Output is correct
48 Correct 42 ms 89540 KB Output is correct
49 Correct 44 ms 89604 KB Output is correct
50 Correct 44 ms 89544 KB Output is correct
51 Correct 43 ms 89536 KB Output is correct
52 Correct 49 ms 89540 KB Output is correct
53 Correct 43 ms 89544 KB Output is correct
54 Correct 43 ms 89596 KB Output is correct
55 Correct 41 ms 89536 KB Output is correct
56 Correct 44 ms 89500 KB Output is correct
57 Correct 42 ms 89552 KB Output is correct
58 Correct 43 ms 89484 KB Output is correct
59 Correct 42 ms 89552 KB Output is correct
60 Correct 48 ms 89528 KB Output is correct
61 Correct 43 ms 89496 KB Output is correct
62 Correct 42 ms 89540 KB Output is correct
63 Correct 42 ms 89548 KB Output is correct
64 Correct 41 ms 89576 KB Output is correct
65 Correct 43 ms 89604 KB Output is correct
66 Correct 44 ms 89484 KB Output is correct
67 Correct 42 ms 89660 KB Output is correct
68 Correct 43 ms 89560 KB Output is correct
69 Correct 42 ms 89548 KB Output is correct
70 Correct 42 ms 89492 KB Output is correct
71 Correct 42 ms 89488 KB Output is correct
72 Correct 42 ms 89540 KB Output is correct
73 Correct 44 ms 89540 KB Output is correct
74 Correct 44 ms 89576 KB Output is correct

Subtask #3
76.0 / 76.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 89448 KB Output is correct
2 Correct 45 ms 89432 KB Output is correct
3 Correct 42 ms 89472 KB Output is correct
4 Correct 47 ms 89508 KB Output is correct
5 Correct 41 ms 89480 KB Output is correct
6 Correct 41 ms 89412 KB Output is correct
7 Correct 40 ms 89412 KB Output is correct
8 Correct 41 ms 89516 KB Output is correct
9 Correct 42 ms 89448 KB Output is correct
10 Correct 42 ms 89496 KB Output is correct
11 Correct 40 ms 89412 KB Output is correct
12 Correct 40 ms 89448 KB Output is correct
13 Correct 57 ms 89428 KB Output is correct
14 Correct 41 ms 89440 KB Output is correct
15 Correct 47 ms 89412 KB Output is correct
16 Correct 41 ms 89480 KB Output is correct
17 Correct 41 ms 89524 KB Output is correct
18 Correct 41 ms 89484 KB Output is correct
19 Correct 41 ms 89468 KB Output is correct
20 Correct 42 ms 89540 KB Output is correct
21 Correct 40 ms 89552 KB Output is correct
22 Correct 42 ms 89416 KB Output is correct
23 Correct 42 ms 89516 KB Output is correct
24 Correct 41 ms 89548 KB Output is correct
25 Correct 42 ms 89492 KB Output is correct
26 Correct 41 ms 89412 KB Output is correct
27 Correct 42 ms 89472 KB Output is correct
28 Correct 49 ms 89524 KB Output is correct
29 Correct 41 ms 89500 KB Output is correct
30 Correct 42 ms 89456 KB Output is correct
31 Correct 42 ms 89412 KB Output is correct
32 Correct 42 ms 89496 KB Output is correct
33 Correct 42 ms 89512 KB Output is correct
34 Correct 41 ms 89548 KB Output is correct
35 Correct 41 ms 89500 KB Output is correct
36 Correct 41 ms 89540 KB Output is correct
37 Correct 41 ms 89412 KB Output is correct
38 Correct 50 ms 89560 KB Output is correct
39 Correct 43 ms 89492 KB Output is correct
40 Correct 42 ms 89580 KB Output is correct
41 Correct 42 ms 89564 KB Output is correct
42 Correct 43 ms 89540 KB Output is correct
43 Correct 49 ms 89488 KB Output is correct
44 Correct 43 ms 89536 KB Output is correct
45 Correct 43 ms 89536 KB Output is correct
46 Correct 43 ms 89540 KB Output is correct
47 Correct 43 ms 89512 KB Output is correct
48 Correct 42 ms 89540 KB Output is correct
49 Correct 44 ms 89604 KB Output is correct
50 Correct 44 ms 89544 KB Output is correct
51 Correct 43 ms 89536 KB Output is correct
52 Correct 49 ms 89540 KB Output is correct
53 Correct 43 ms 89544 KB Output is correct
54 Correct 43 ms 89596 KB Output is correct
55 Correct 41 ms 89536 KB Output is correct
56 Correct 44 ms 89500 KB Output is correct
57 Correct 42 ms 89552 KB Output is correct
58 Correct 43 ms 89484 KB Output is correct
59 Correct 42 ms 89552 KB Output is correct
60 Correct 48 ms 89528 KB Output is correct
61 Correct 43 ms 89496 KB Output is correct
62 Correct 42 ms 89540 KB Output is correct
63 Correct 42 ms 89548 KB Output is correct
64 Correct 41 ms 89576 KB Output is correct
65 Correct 43 ms 89604 KB Output is correct
66 Correct 44 ms 89484 KB Output is correct
67 Correct 42 ms 89660 KB Output is correct
68 Correct 43 ms 89560 KB Output is correct
69 Correct 42 ms 89548 KB Output is correct
70 Correct 42 ms 89492 KB Output is correct
71 Correct 42 ms 89488 KB Output is correct
72 Correct 42 ms 89540 KB Output is correct
73 Correct 44 ms 89540 KB Output is correct
74 Correct 44 ms 89576 KB Output is correct
75 Correct 631 ms 92140 KB Output is correct
76 Correct 660 ms 92192 KB Output is correct
77 Correct 568 ms 92356 KB Output is correct
78 Correct 597 ms 92228 KB Output is correct
79 Correct 228 ms 92228 KB Output is correct
80 Correct 240 ms 92296 KB Output is correct
81 Correct 458 ms 92400 KB Output is correct
82 Correct 577 ms 92160 KB Output is correct
83 Correct 570 ms 92356 KB Output is correct
84 Correct 552 ms 92364 KB Output is correct
85 Correct 466 ms 92096 KB Output is correct
86 Correct 295 ms 91972 KB Output is correct
87 Correct 305 ms 92072 KB Output is correct
88 Correct 409 ms 92044 KB Output is correct
89 Correct 389 ms 92100 KB Output is correct
90 Correct 321 ms 92236 KB Output is correct
91 Correct 244 ms 91972 KB Output is correct
92 Correct 248 ms 91976 KB Output is correct
93 Correct 273 ms 92100 KB Output is correct
94 Correct 237 ms 92280 KB Output is correct
95 Correct 306 ms 92228 KB Output is correct
96 Correct 313 ms 92108 KB Output is correct
97 Correct 370 ms 92208 KB Output is correct
98 Correct 319 ms 92208 KB Output is correct
99 Correct 338 ms 92096 KB Output is correct
100 Correct 287 ms 91856 KB Output is correct
101 Correct 309 ms 91844 KB Output is correct
102 Correct 349 ms 91964 KB Output is correct
103 Correct 341 ms 91884 KB Output is correct
104 Correct 413 ms 91996 KB Output is correct
105 Correct 299 ms 91992 KB Output is correct
106 Correct 311 ms 91996 KB Output is correct
107 Correct 272 ms 92104 KB Output is correct
108 Correct 560 ms 91944 KB Output is correct
109 Correct 467 ms 91976 KB Output is correct
110 Correct 198 ms 91924 KB Output is correct
111 Correct 254 ms 91976 KB Output is correct
112 Correct 588 ms 91716 KB Output is correct
113 Correct 229 ms 92100 KB Output is correct