Submission #62225

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
62225	2018-07-27T22:21:56 Z	kingpig9	Art Exhibition (JOI18_art)	C++11	100 / 100	348 ms	115196 KB

art

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
const int MAXN = 500010;

#define debug(...) fprintf(stderr, __VA_ARGS__)
#define fi first
#define se second
#define all(v) (v).begin(), (v).end()
#define fillchar(a, s) memset((a), (s), sizeof(a))

void setmax (ll &a, ll b) {
	if (a < b) {
		a = b;
	}
}

int N;
pll P[MAXN];
ll V[MAXN];

int main() {
	scanf("%d", &N);
	for (int i = 1; i <= N; i++) {
		scanf("%lld %lld", &P[i].fi, &P[i].se);
	}
	sort(P + 1, P + N + 1);

	for (int i = N; i >= 1; i--) {
		P[i].fi -= P[i - 1].fi;
	}

	for (int i = 1; i <= N; i++) {
		V[i] = V[i - 1] - P[i].fi + P[i].se;
	}

	ll ans = LLONG_MIN;
	ll suffmx = LLONG_MIN;
	for (int i = N; i >= 1; i--) {
		setmax(suffmx, V[i]);
		setmax(ans, suffmx - V[i] + P[i].se);
	}
	printf("%lld\n", ans);
}

Compilation message

art.cpp: In function 'int main()':
art.cpp:25:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
art.cpp:27:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld", &P[i].fi, &P[i].se);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	464 KB	Output is correct
3	Correct	2 ms	476 KB	Output is correct
4	Correct	2 ms	580 KB	Output is correct
5	Correct	3 ms	580 KB	Output is correct
6	Correct	3 ms	588 KB	Output is correct
7	Correct	3 ms	592 KB	Output is correct
8	Correct	3 ms	608 KB	Output is correct
9	Correct	3 ms	620 KB	Output is correct
10	Correct	3 ms	628 KB	Output is correct
11	Correct	3 ms	632 KB	Output is correct

Subtask #2

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	464 KB	Output is correct
3	Correct	2 ms	476 KB	Output is correct
4	Correct	2 ms	580 KB	Output is correct
5	Correct	3 ms	580 KB	Output is correct
6	Correct	3 ms	588 KB	Output is correct
7	Correct	3 ms	592 KB	Output is correct
8	Correct	3 ms	608 KB	Output is correct
9	Correct	3 ms	620 KB	Output is correct
10	Correct	3 ms	628 KB	Output is correct
11	Correct	3 ms	632 KB	Output is correct
12	Correct	2 ms	632 KB	Output is correct
13	Correct	3 ms	644 KB	Output is correct
14	Correct	3 ms	652 KB	Output is correct
15	Correct	3 ms	660 KB	Output is correct
16	Correct	2 ms	668 KB	Output is correct
17	Correct	4 ms	676 KB	Output is correct
18	Correct	2 ms	684 KB	Output is correct
19	Correct	4 ms	692 KB	Output is correct
20	Correct	4 ms	828 KB	Output is correct
21	Correct	3 ms	828 KB	Output is correct
22	Correct	3 ms	828 KB	Output is correct
23	Correct	3 ms	828 KB	Output is correct
24	Correct	2 ms	828 KB	Output is correct
25	Correct	3 ms	828 KB	Output is correct
26	Correct	2 ms	828 KB	Output is correct

Subtask #3

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	464 KB	Output is correct
3	Correct	2 ms	476 KB	Output is correct
4	Correct	2 ms	580 KB	Output is correct
5	Correct	3 ms	580 KB	Output is correct
6	Correct	3 ms	588 KB	Output is correct
7	Correct	3 ms	592 KB	Output is correct
8	Correct	3 ms	608 KB	Output is correct
9	Correct	3 ms	620 KB	Output is correct
10	Correct	3 ms	628 KB	Output is correct
11	Correct	3 ms	632 KB	Output is correct
12	Correct	2 ms	632 KB	Output is correct
13	Correct	3 ms	644 KB	Output is correct
14	Correct	3 ms	652 KB	Output is correct
15	Correct	3 ms	660 KB	Output is correct
16	Correct	2 ms	668 KB	Output is correct
17	Correct	4 ms	676 KB	Output is correct
18	Correct	2 ms	684 KB	Output is correct
19	Correct	4 ms	692 KB	Output is correct
20	Correct	4 ms	828 KB	Output is correct
21	Correct	3 ms	828 KB	Output is correct
22	Correct	3 ms	828 KB	Output is correct
23	Correct	3 ms	828 KB	Output is correct
24	Correct	2 ms	828 KB	Output is correct
25	Correct	3 ms	828 KB	Output is correct
26	Correct	2 ms	828 KB	Output is correct
27	Correct	6 ms	900 KB	Output is correct
28	Correct	7 ms	1028 KB	Output is correct
29	Correct	5 ms	1156 KB	Output is correct
30	Correct	6 ms	1300 KB	Output is correct
31	Correct	5 ms	1424 KB	Output is correct
32	Correct	5 ms	1564 KB	Output is correct
33	Correct	6 ms	1668 KB	Output is correct
34	Correct	6 ms	1924 KB	Output is correct
35	Correct	6 ms	1928 KB	Output is correct
36	Correct	6 ms	2052 KB	Output is correct
37	Correct	7 ms	2180 KB	Output is correct
38	Correct	7 ms	2308 KB	Output is correct
39	Correct	6 ms	2448 KB	Output is correct
40	Correct	9 ms	2584 KB	Output is correct
41	Correct	7 ms	2692 KB	Output is correct
42	Correct	8 ms	2816 KB	Output is correct
43	Correct	8 ms	2944 KB	Output is correct
44	Correct	6 ms	3200 KB	Output is correct
45	Correct	6 ms	3200 KB	Output is correct
46	Correct	7 ms	3328 KB	Output is correct
47	Correct	6 ms	3464 KB	Output is correct
48	Correct	5 ms	3604 KB	Output is correct
49	Correct	6 ms	3712 KB	Output is correct
50	Correct	6 ms	3840 KB	Output is correct
51	Correct	6 ms	3968 KB	Output is correct

Subtask #4

50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	464 KB	Output is correct
3	Correct	2 ms	476 KB	Output is correct
4	Correct	2 ms	580 KB	Output is correct
5	Correct	3 ms	580 KB	Output is correct
6	Correct	3 ms	588 KB	Output is correct
7	Correct	3 ms	592 KB	Output is correct
8	Correct	3 ms	608 KB	Output is correct
9	Correct	3 ms	620 KB	Output is correct
10	Correct	3 ms	628 KB	Output is correct
11	Correct	3 ms	632 KB	Output is correct
12	Correct	2 ms	632 KB	Output is correct
13	Correct	3 ms	644 KB	Output is correct
14	Correct	3 ms	652 KB	Output is correct
15	Correct	3 ms	660 KB	Output is correct
16	Correct	2 ms	668 KB	Output is correct
17	Correct	4 ms	676 KB	Output is correct
18	Correct	2 ms	684 KB	Output is correct
19	Correct	4 ms	692 KB	Output is correct
20	Correct	4 ms	828 KB	Output is correct
21	Correct	3 ms	828 KB	Output is correct
22	Correct	3 ms	828 KB	Output is correct
23	Correct	3 ms	828 KB	Output is correct
24	Correct	2 ms	828 KB	Output is correct
25	Correct	3 ms	828 KB	Output is correct
26	Correct	2 ms	828 KB	Output is correct
27	Correct	6 ms	900 KB	Output is correct
28	Correct	7 ms	1028 KB	Output is correct
29	Correct	5 ms	1156 KB	Output is correct
30	Correct	6 ms	1300 KB	Output is correct
31	Correct	5 ms	1424 KB	Output is correct
32	Correct	5 ms	1564 KB	Output is correct
33	Correct	6 ms	1668 KB	Output is correct
34	Correct	6 ms	1924 KB	Output is correct
35	Correct	6 ms	1928 KB	Output is correct
36	Correct	6 ms	2052 KB	Output is correct
37	Correct	7 ms	2180 KB	Output is correct
38	Correct	7 ms	2308 KB	Output is correct
39	Correct	6 ms	2448 KB	Output is correct
40	Correct	9 ms	2584 KB	Output is correct
41	Correct	7 ms	2692 KB	Output is correct
42	Correct	8 ms	2816 KB	Output is correct
43	Correct	8 ms	2944 KB	Output is correct
44	Correct	6 ms	3200 KB	Output is correct
45	Correct	6 ms	3200 KB	Output is correct
46	Correct	7 ms	3328 KB	Output is correct
47	Correct	6 ms	3464 KB	Output is correct
48	Correct	5 ms	3604 KB	Output is correct
49	Correct	6 ms	3712 KB	Output is correct
50	Correct	6 ms	3840 KB	Output is correct
51	Correct	6 ms	3968 KB	Output is correct
52	Correct	343 ms	28268 KB	Output is correct
53	Correct	301 ms	40916 KB	Output is correct
54	Correct	295 ms	53656 KB	Output is correct
55	Correct	288 ms	66384 KB	Output is correct
56	Correct	282 ms	78936 KB	Output is correct
57	Correct	285 ms	91452 KB	Output is correct
58	Correct	348 ms	104224 KB	Output is correct
59	Correct	303 ms	115028 KB	Output is correct
60	Correct	298 ms	115196 KB	Output is correct
61	Correct	290 ms	115196 KB	Output is correct
62	Correct	320 ms	115196 KB	Output is correct
63	Correct	333 ms	115196 KB	Output is correct
64	Correct	289 ms	115196 KB	Output is correct
65	Correct	344 ms	115196 KB	Output is correct
66	Correct	324 ms	115196 KB	Output is correct
67	Correct	304 ms	115196 KB	Output is correct
68	Correct	306 ms	115196 KB	Output is correct