#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define int long long
using namespace std;
#ifdef LOCAL
#define WOSAOJI freopen("in.txt", "r", stdin);
#else
#define WOSAOJI ios_base::sync_with_stdio(0), cin.tie(0);
#endif
#define chmax(a, b) (a) = (a) > (b) ? (a) : (b)
#define chmin(a, b) (a) = (a) < (b) ? (a) : (b)
const int MAXN = 5e5 + 5;
int n, s;
pair<int, int> a[MAXN];
int p_min[MAXN], p_max[MAXN];
int pre[MAXN];
signed main() {
WOSAOJI
cin >> n;
for (int i = 1; i <= n; i++) {
cin >> a[i].F >> a[i].S;
s += a[i].S;
}
sort(a + 1, a + 1 + n);
int cur = s - a[n].F + a[1].F;
for (int i = 1; i < n; i++) {
p_min[i] = a[i + 1].F - a[i].F - a[i].S;
p_min[i] += p_min[i - 1];
pre[i] = max(pre[i - 1], p_min[i]);
}
for (int i = n; i > 1; i--) {
p_max[i] = a[i].F - a[i].S - a[i - 1].F;
p_max[i] += p_max[i + 1];
}
for (int i = 1; i <= n; i++) {
//cout << p_min[i] << " \n"[i == n];
}
for (int i = 1; i <= n; i++) {
//cout << p_max[i] << " \n"[i == n];
}
int ans = max(0ll, cur);
for (int i = 2; i <= n + 1; i++) {
chmax(ans, cur + p_max[i] + pre[i - 2]);
}
cout << ans << '\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
324 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
324 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
332 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
336 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
336 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
324 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
332 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
336 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
336 KB |
Output is correct |
27 |
Correct |
4 ms |
596 KB |
Output is correct |
28 |
Correct |
2 ms |
596 KB |
Output is correct |
29 |
Correct |
3 ms |
596 KB |
Output is correct |
30 |
Correct |
2 ms |
596 KB |
Output is correct |
31 |
Correct |
2 ms |
580 KB |
Output is correct |
32 |
Correct |
2 ms |
592 KB |
Output is correct |
33 |
Correct |
2 ms |
596 KB |
Output is correct |
34 |
Correct |
2 ms |
604 KB |
Output is correct |
35 |
Correct |
2 ms |
652 KB |
Output is correct |
36 |
Correct |
2 ms |
600 KB |
Output is correct |
37 |
Correct |
2 ms |
596 KB |
Output is correct |
38 |
Correct |
3 ms |
656 KB |
Output is correct |
39 |
Correct |
2 ms |
624 KB |
Output is correct |
40 |
Correct |
2 ms |
596 KB |
Output is correct |
41 |
Correct |
3 ms |
596 KB |
Output is correct |
42 |
Correct |
4 ms |
664 KB |
Output is correct |
43 |
Correct |
2 ms |
596 KB |
Output is correct |
44 |
Correct |
3 ms |
596 KB |
Output is correct |
45 |
Correct |
3 ms |
584 KB |
Output is correct |
46 |
Correct |
3 ms |
576 KB |
Output is correct |
47 |
Correct |
3 ms |
600 KB |
Output is correct |
48 |
Correct |
3 ms |
596 KB |
Output is correct |
49 |
Correct |
3 ms |
596 KB |
Output is correct |
50 |
Correct |
2 ms |
596 KB |
Output is correct |
51 |
Correct |
3 ms |
596 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
324 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
332 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
336 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
336 KB |
Output is correct |
27 |
Correct |
4 ms |
596 KB |
Output is correct |
28 |
Correct |
2 ms |
596 KB |
Output is correct |
29 |
Correct |
3 ms |
596 KB |
Output is correct |
30 |
Correct |
2 ms |
596 KB |
Output is correct |
31 |
Correct |
2 ms |
580 KB |
Output is correct |
32 |
Correct |
2 ms |
592 KB |
Output is correct |
33 |
Correct |
2 ms |
596 KB |
Output is correct |
34 |
Correct |
2 ms |
604 KB |
Output is correct |
35 |
Correct |
2 ms |
652 KB |
Output is correct |
36 |
Correct |
2 ms |
600 KB |
Output is correct |
37 |
Correct |
2 ms |
596 KB |
Output is correct |
38 |
Correct |
3 ms |
656 KB |
Output is correct |
39 |
Correct |
2 ms |
624 KB |
Output is correct |
40 |
Correct |
2 ms |
596 KB |
Output is correct |
41 |
Correct |
3 ms |
596 KB |
Output is correct |
42 |
Correct |
4 ms |
664 KB |
Output is correct |
43 |
Correct |
2 ms |
596 KB |
Output is correct |
44 |
Correct |
3 ms |
596 KB |
Output is correct |
45 |
Correct |
3 ms |
584 KB |
Output is correct |
46 |
Correct |
3 ms |
576 KB |
Output is correct |
47 |
Correct |
3 ms |
600 KB |
Output is correct |
48 |
Correct |
3 ms |
596 KB |
Output is correct |
49 |
Correct |
3 ms |
596 KB |
Output is correct |
50 |
Correct |
2 ms |
596 KB |
Output is correct |
51 |
Correct |
3 ms |
596 KB |
Output is correct |
52 |
Correct |
176 ms |
21600 KB |
Output is correct |
53 |
Correct |
172 ms |
21596 KB |
Output is correct |
54 |
Correct |
177 ms |
21560 KB |
Output is correct |
55 |
Correct |
192 ms |
21648 KB |
Output is correct |
56 |
Correct |
169 ms |
21580 KB |
Output is correct |
57 |
Correct |
177 ms |
21608 KB |
Output is correct |
58 |
Correct |
169 ms |
21632 KB |
Output is correct |
59 |
Correct |
173 ms |
21644 KB |
Output is correct |
60 |
Correct |
176 ms |
21632 KB |
Output is correct |
61 |
Correct |
174 ms |
21712 KB |
Output is correct |
62 |
Correct |
183 ms |
21572 KB |
Output is correct |
63 |
Correct |
172 ms |
21764 KB |
Output is correct |
64 |
Correct |
186 ms |
21624 KB |
Output is correct |
65 |
Correct |
173 ms |
21584 KB |
Output is correct |
66 |
Correct |
176 ms |
21576 KB |
Output is correct |
67 |
Correct |
176 ms |
21660 KB |
Output is correct |
68 |
Correct |
164 ms |
21576 KB |
Output is correct |