#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';
}
| # |
Verdict |
Execution time |
Memory |
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 |
| # |
Verdict |
Execution time |
Memory |
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 |
| # |
Verdict |
Execution time |
Memory |
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 |
| # |
Verdict |
Execution time |
Memory |
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 |
