#include <iostream>
#include <algorithm>
#define ll long long
#define pii pair<ll, ll>
#define fst first
#define snd second
using namespace std;
int n;
pii ar[500001];
ll pref[500001], mx[500001] = {}, res = 0;
int main()
{
ios :: sync_with_stdio(0); cin.tie(0); cout.tie(0);
cin >> n;
for (int i = 0; i < n; i++) cin >> ar[i].fst >> ar[i].snd;
sort(ar, ar + n);
for (int i = 1; i <= n; i++)
{
pref[i] = pref[i - 1] + ar[i - 1].snd - ar[i - 1].fst + ((i > 1) ? ar[i - 2].fst : 0);
}
mx[n] = pref[n];
for (int i = n - 1; i > 0; i--) {mx[i] = max(mx[i + 1], pref[i]);}
for (int i = 1; i <= n; i++)
{
res = max(res, mx[i] - pref[i] + ar[i - 1].snd);
}
cout << res << "\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
392 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
5 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
392 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
5 ms |
384 KB |
Output is correct |
12 |
Correct |
5 ms |
384 KB |
Output is correct |
13 |
Correct |
5 ms |
384 KB |
Output is correct |
14 |
Correct |
5 ms |
384 KB |
Output is correct |
15 |
Correct |
5 ms |
384 KB |
Output is correct |
16 |
Correct |
5 ms |
384 KB |
Output is correct |
17 |
Correct |
5 ms |
384 KB |
Output is correct |
18 |
Correct |
5 ms |
384 KB |
Output is correct |
19 |
Correct |
5 ms |
384 KB |
Output is correct |
20 |
Correct |
5 ms |
384 KB |
Output is correct |
21 |
Correct |
5 ms |
384 KB |
Output is correct |
22 |
Correct |
5 ms |
384 KB |
Output is correct |
23 |
Correct |
5 ms |
384 KB |
Output is correct |
24 |
Correct |
5 ms |
384 KB |
Output is correct |
25 |
Correct |
5 ms |
384 KB |
Output is correct |
26 |
Correct |
5 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
392 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
5 ms |
384 KB |
Output is correct |
12 |
Correct |
5 ms |
384 KB |
Output is correct |
13 |
Correct |
5 ms |
384 KB |
Output is correct |
14 |
Correct |
5 ms |
384 KB |
Output is correct |
15 |
Correct |
5 ms |
384 KB |
Output is correct |
16 |
Correct |
5 ms |
384 KB |
Output is correct |
17 |
Correct |
5 ms |
384 KB |
Output is correct |
18 |
Correct |
5 ms |
384 KB |
Output is correct |
19 |
Correct |
5 ms |
384 KB |
Output is correct |
20 |
Correct |
5 ms |
384 KB |
Output is correct |
21 |
Correct |
5 ms |
384 KB |
Output is correct |
22 |
Correct |
5 ms |
384 KB |
Output is correct |
23 |
Correct |
5 ms |
384 KB |
Output is correct |
24 |
Correct |
5 ms |
384 KB |
Output is correct |
25 |
Correct |
5 ms |
384 KB |
Output is correct |
26 |
Correct |
5 ms |
384 KB |
Output is correct |
27 |
Correct |
7 ms |
632 KB |
Output is correct |
28 |
Correct |
6 ms |
640 KB |
Output is correct |
29 |
Correct |
7 ms |
640 KB |
Output is correct |
30 |
Correct |
7 ms |
640 KB |
Output is correct |
31 |
Correct |
7 ms |
640 KB |
Output is correct |
32 |
Correct |
7 ms |
640 KB |
Output is correct |
33 |
Correct |
7 ms |
640 KB |
Output is correct |
34 |
Correct |
7 ms |
640 KB |
Output is correct |
35 |
Correct |
6 ms |
640 KB |
Output is correct |
36 |
Correct |
7 ms |
640 KB |
Output is correct |
37 |
Correct |
7 ms |
768 KB |
Output is correct |
38 |
Correct |
6 ms |
640 KB |
Output is correct |
39 |
Correct |
7 ms |
632 KB |
Output is correct |
40 |
Correct |
7 ms |
640 KB |
Output is correct |
41 |
Correct |
9 ms |
640 KB |
Output is correct |
42 |
Correct |
6 ms |
640 KB |
Output is correct |
43 |
Correct |
7 ms |
648 KB |
Output is correct |
44 |
Correct |
7 ms |
640 KB |
Output is correct |
45 |
Correct |
8 ms |
640 KB |
Output is correct |
46 |
Correct |
7 ms |
640 KB |
Output is correct |
47 |
Correct |
7 ms |
640 KB |
Output is correct |
48 |
Correct |
7 ms |
640 KB |
Output is correct |
49 |
Correct |
7 ms |
640 KB |
Output is correct |
50 |
Correct |
7 ms |
640 KB |
Output is correct |
51 |
Correct |
7 ms |
640 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
392 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
5 ms |
384 KB |
Output is correct |
12 |
Correct |
5 ms |
384 KB |
Output is correct |
13 |
Correct |
5 ms |
384 KB |
Output is correct |
14 |
Correct |
5 ms |
384 KB |
Output is correct |
15 |
Correct |
5 ms |
384 KB |
Output is correct |
16 |
Correct |
5 ms |
384 KB |
Output is correct |
17 |
Correct |
5 ms |
384 KB |
Output is correct |
18 |
Correct |
5 ms |
384 KB |
Output is correct |
19 |
Correct |
5 ms |
384 KB |
Output is correct |
20 |
Correct |
5 ms |
384 KB |
Output is correct |
21 |
Correct |
5 ms |
384 KB |
Output is correct |
22 |
Correct |
5 ms |
384 KB |
Output is correct |
23 |
Correct |
5 ms |
384 KB |
Output is correct |
24 |
Correct |
5 ms |
384 KB |
Output is correct |
25 |
Correct |
5 ms |
384 KB |
Output is correct |
26 |
Correct |
5 ms |
384 KB |
Output is correct |
27 |
Correct |
7 ms |
632 KB |
Output is correct |
28 |
Correct |
6 ms |
640 KB |
Output is correct |
29 |
Correct |
7 ms |
640 KB |
Output is correct |
30 |
Correct |
7 ms |
640 KB |
Output is correct |
31 |
Correct |
7 ms |
640 KB |
Output is correct |
32 |
Correct |
7 ms |
640 KB |
Output is correct |
33 |
Correct |
7 ms |
640 KB |
Output is correct |
34 |
Correct |
7 ms |
640 KB |
Output is correct |
35 |
Correct |
6 ms |
640 KB |
Output is correct |
36 |
Correct |
7 ms |
640 KB |
Output is correct |
37 |
Correct |
7 ms |
768 KB |
Output is correct |
38 |
Correct |
6 ms |
640 KB |
Output is correct |
39 |
Correct |
7 ms |
632 KB |
Output is correct |
40 |
Correct |
7 ms |
640 KB |
Output is correct |
41 |
Correct |
9 ms |
640 KB |
Output is correct |
42 |
Correct |
6 ms |
640 KB |
Output is correct |
43 |
Correct |
7 ms |
648 KB |
Output is correct |
44 |
Correct |
7 ms |
640 KB |
Output is correct |
45 |
Correct |
8 ms |
640 KB |
Output is correct |
46 |
Correct |
7 ms |
640 KB |
Output is correct |
47 |
Correct |
7 ms |
640 KB |
Output is correct |
48 |
Correct |
7 ms |
640 KB |
Output is correct |
49 |
Correct |
7 ms |
640 KB |
Output is correct |
50 |
Correct |
7 ms |
640 KB |
Output is correct |
51 |
Correct |
7 ms |
640 KB |
Output is correct |
52 |
Correct |
218 ms |
28536 KB |
Output is correct |
53 |
Correct |
229 ms |
28664 KB |
Output is correct |
54 |
Correct |
215 ms |
28584 KB |
Output is correct |
55 |
Correct |
228 ms |
28884 KB |
Output is correct |
56 |
Correct |
223 ms |
28664 KB |
Output is correct |
57 |
Correct |
215 ms |
28664 KB |
Output is correct |
58 |
Correct |
321 ms |
28708 KB |
Output is correct |
59 |
Correct |
229 ms |
28640 KB |
Output is correct |
60 |
Correct |
239 ms |
28576 KB |
Output is correct |
61 |
Correct |
232 ms |
28444 KB |
Output is correct |
62 |
Correct |
214 ms |
28664 KB |
Output is correct |
63 |
Correct |
241 ms |
28744 KB |
Output is correct |
64 |
Correct |
237 ms |
28836 KB |
Output is correct |
65 |
Correct |
262 ms |
28768 KB |
Output is correct |
66 |
Correct |
225 ms |
28680 KB |
Output is correct |
67 |
Correct |
220 ms |
28664 KB |
Output is correct |
68 |
Correct |
226 ms |
28668 KB |
Output is correct |