답안 #171710

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
171710	2019-12-30T07:06:53 Z	dennisstar	Art Exhibition (JOI18_art)	C++11	100 / 100	334 ms	36924 KB

#include <bits/stdc++.h>
#define fi first
#define se second
#define ryan bear
#define all(V) ((V).begin()), ((V).end())
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef long double ld;
typedef vector<int> vim;
typedef vector<ll> vlm;

int N;
pll ar[500010];
ll B[500010], C[500010];
ll seg[(1<<20)];
ll x, y;

ll mx(int fr, int re) {
	fr+=(1<<19); re+=(1<<19);
	ll ret=seg[0];
	while (fr<=re) {
		if (fr%2) ret=max(ret, seg[fr++]);
		if (re%2==0) ret=max(ret, seg[re--]);
		fr/=2; re/=2;
	}
	return ret;
}

int main() {
	scanf("%d", &N);
	for (int i=0; i<N; i++) {
		scanf("%lld %lld", &x, &y);
		ar[i]={x, y};
	}
	sort(ar, ar+N);
	for (int i=0; i<N; i++) B[i]=ar[i].se, C[i]=ar[i].fi+ar[i].se-ar[i+1].fi;
	for (int i=N-1; i>=0; i--) seg[i+(1<<19)]=seg[i+1+(1<<19)]+C[i];
	for (int i=(1<<19)-1; i; i--) seg[i]=max(seg[i*2], seg[i*2+1]);
	ll ans=B[0], s=0;
	for (int i=N-1; i; i--) {
		s+=C[i];
		ans=max(ans, mx(0, i-1)-s+B[i]);
		ans=max(ans, B[i]);
	}
	printf("%lld\n", ans);
	return 0;
}

Compilation message

art.cpp: In function 'int main()':
art.cpp:32:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
art.cpp:34:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld", &x, &y);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	4476 KB	Output is correct
2	Correct	7 ms	4472 KB	Output is correct
3	Correct	7 ms	4472 KB	Output is correct
4	Correct	7 ms	4460 KB	Output is correct
5	Correct	7 ms	4448 KB	Output is correct
6	Correct	7 ms	4472 KB	Output is correct
7	Correct	7 ms	4472 KB	Output is correct
8	Correct	7 ms	4472 KB	Output is correct
9	Correct	7 ms	4472 KB	Output is correct
10	Correct	7 ms	4472 KB	Output is correct
11	Correct	7 ms	4472 KB	Output is correct

Subtask #2
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	4476 KB	Output is correct
2	Correct	7 ms	4472 KB	Output is correct
3	Correct	7 ms	4472 KB	Output is correct
4	Correct	7 ms	4460 KB	Output is correct
5	Correct	7 ms	4448 KB	Output is correct
6	Correct	7 ms	4472 KB	Output is correct
7	Correct	7 ms	4472 KB	Output is correct
8	Correct	7 ms	4472 KB	Output is correct
9	Correct	7 ms	4472 KB	Output is correct
10	Correct	7 ms	4472 KB	Output is correct
11	Correct	7 ms	4472 KB	Output is correct
12	Correct	7 ms	4472 KB	Output is correct
13	Correct	7 ms	4472 KB	Output is correct
14	Correct	8 ms	4600 KB	Output is correct
15	Correct	7 ms	4472 KB	Output is correct
16	Correct	7 ms	4472 KB	Output is correct
17	Correct	7 ms	4472 KB	Output is correct
18	Correct	7 ms	4472 KB	Output is correct
19	Correct	7 ms	4444 KB	Output is correct
20	Correct	7 ms	4472 KB	Output is correct
21	Correct	7 ms	4472 KB	Output is correct
22	Correct	7 ms	4472 KB	Output is correct
23	Correct	7 ms	4472 KB	Output is correct
24	Correct	7 ms	4444 KB	Output is correct
25	Correct	7 ms	4472 KB	Output is correct
26	Correct	7 ms	4472 KB	Output is correct

Subtask #3
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	4476 KB	Output is correct
2	Correct	7 ms	4472 KB	Output is correct
3	Correct	7 ms	4472 KB	Output is correct
4	Correct	7 ms	4460 KB	Output is correct
5	Correct	7 ms	4448 KB	Output is correct
6	Correct	7 ms	4472 KB	Output is correct
7	Correct	7 ms	4472 KB	Output is correct
8	Correct	7 ms	4472 KB	Output is correct
9	Correct	7 ms	4472 KB	Output is correct
10	Correct	7 ms	4472 KB	Output is correct
11	Correct	7 ms	4472 KB	Output is correct
12	Correct	7 ms	4472 KB	Output is correct
13	Correct	7 ms	4472 KB	Output is correct
14	Correct	8 ms	4600 KB	Output is correct
15	Correct	7 ms	4472 KB	Output is correct
16	Correct	7 ms	4472 KB	Output is correct
17	Correct	7 ms	4472 KB	Output is correct
18	Correct	7 ms	4472 KB	Output is correct
19	Correct	7 ms	4444 KB	Output is correct
20	Correct	7 ms	4472 KB	Output is correct
21	Correct	7 ms	4472 KB	Output is correct
22	Correct	7 ms	4472 KB	Output is correct
23	Correct	7 ms	4472 KB	Output is correct
24	Correct	7 ms	4444 KB	Output is correct
25	Correct	7 ms	4472 KB	Output is correct
26	Correct	7 ms	4472 KB	Output is correct
27	Correct	10 ms	4732 KB	Output is correct
28	Correct	10 ms	4728 KB	Output is correct
29	Correct	10 ms	4728 KB	Output is correct
30	Correct	10 ms	4728 KB	Output is correct
31	Correct	10 ms	4728 KB	Output is correct
32	Correct	10 ms	4728 KB	Output is correct
33	Correct	10 ms	4728 KB	Output is correct
34	Correct	10 ms	4716 KB	Output is correct
35	Correct	10 ms	4788 KB	Output is correct
36	Correct	10 ms	4856 KB	Output is correct
37	Correct	10 ms	4856 KB	Output is correct
38	Correct	10 ms	4856 KB	Output is correct
39	Correct	10 ms	4856 KB	Output is correct
40	Correct	10 ms	4728 KB	Output is correct
41	Correct	10 ms	4728 KB	Output is correct
42	Correct	10 ms	4728 KB	Output is correct
43	Correct	11 ms	4856 KB	Output is correct
44	Correct	10 ms	4856 KB	Output is correct
45	Correct	10 ms	4728 KB	Output is correct
46	Correct	10 ms	4728 KB	Output is correct
47	Correct	11 ms	4732 KB	Output is correct
48	Correct	33 ms	4828 KB	Output is correct
49	Correct	10 ms	4728 KB	Output is correct
50	Correct	11 ms	4700 KB	Output is correct
51	Correct	11 ms	4856 KB	Output is correct

Subtask #4
50.0 / 50.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	4476 KB	Output is correct
2	Correct	7 ms	4472 KB	Output is correct
3	Correct	7 ms	4472 KB	Output is correct
4	Correct	7 ms	4460 KB	Output is correct
5	Correct	7 ms	4448 KB	Output is correct
6	Correct	7 ms	4472 KB	Output is correct
7	Correct	7 ms	4472 KB	Output is correct
8	Correct	7 ms	4472 KB	Output is correct
9	Correct	7 ms	4472 KB	Output is correct
10	Correct	7 ms	4472 KB	Output is correct
11	Correct	7 ms	4472 KB	Output is correct
12	Correct	7 ms	4472 KB	Output is correct
13	Correct	7 ms	4472 KB	Output is correct
14	Correct	8 ms	4600 KB	Output is correct
15	Correct	7 ms	4472 KB	Output is correct
16	Correct	7 ms	4472 KB	Output is correct
17	Correct	7 ms	4472 KB	Output is correct
18	Correct	7 ms	4472 KB	Output is correct
19	Correct	7 ms	4444 KB	Output is correct
20	Correct	7 ms	4472 KB	Output is correct
21	Correct	7 ms	4472 KB	Output is correct
22	Correct	7 ms	4472 KB	Output is correct
23	Correct	7 ms	4472 KB	Output is correct
24	Correct	7 ms	4444 KB	Output is correct
25	Correct	7 ms	4472 KB	Output is correct
26	Correct	7 ms	4472 KB	Output is correct
27	Correct	10 ms	4732 KB	Output is correct
28	Correct	10 ms	4728 KB	Output is correct
29	Correct	10 ms	4728 KB	Output is correct
30	Correct	10 ms	4728 KB	Output is correct
31	Correct	10 ms	4728 KB	Output is correct
32	Correct	10 ms	4728 KB	Output is correct
33	Correct	10 ms	4728 KB	Output is correct
34	Correct	10 ms	4716 KB	Output is correct
35	Correct	10 ms	4788 KB	Output is correct
36	Correct	10 ms	4856 KB	Output is correct
37	Correct	10 ms	4856 KB	Output is correct
38	Correct	10 ms	4856 KB	Output is correct
39	Correct	10 ms	4856 KB	Output is correct
40	Correct	10 ms	4728 KB	Output is correct
41	Correct	10 ms	4728 KB	Output is correct
42	Correct	10 ms	4728 KB	Output is correct
43	Correct	11 ms	4856 KB	Output is correct
44	Correct	10 ms	4856 KB	Output is correct
45	Correct	10 ms	4728 KB	Output is correct
46	Correct	10 ms	4728 KB	Output is correct
47	Correct	11 ms	4732 KB	Output is correct
48	Correct	33 ms	4828 KB	Output is correct
49	Correct	10 ms	4728 KB	Output is correct
50	Correct	11 ms	4700 KB	Output is correct
51	Correct	11 ms	4856 KB	Output is correct
52	Correct	334 ms	36680 KB	Output is correct
53	Correct	326 ms	36864 KB	Output is correct
54	Correct	325 ms	36732 KB	Output is correct
55	Correct	334 ms	36860 KB	Output is correct
56	Correct	325 ms	36740 KB	Output is correct
57	Correct	333 ms	36712 KB	Output is correct
58	Correct	331 ms	36764 KB	Output is correct
59	Correct	329 ms	36728 KB	Output is correct
60	Correct	324 ms	36728 KB	Output is correct
61	Correct	327 ms	36600 KB	Output is correct
62	Correct	327 ms	36924 KB	Output is correct
63	Correct	329 ms	36796 KB	Output is correct
64	Correct	327 ms	36804 KB	Output is correct
65	Correct	325 ms	36708 KB	Output is correct
66	Correct	326 ms	36728 KB	Output is correct
67	Correct	324 ms	36728 KB	Output is correct
68	Correct	321 ms	36724 KB	Output is correct

답안 #171710

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 20.0 / 20.0

Subtask #3 20.0 / 20.0

Subtask #4 50.0 / 50.0

Subtask #1
10.0 / 10.0

Subtask #2
20.0 / 20.0

Subtask #3
20.0 / 20.0

Subtask #4
50.0 / 50.0