// IOI 2021
#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define ends ' '
#define die(x) return cout << x << endl, 0
#define all(v) v.begin(), v.end()
#define sz(x) (int)(x.size())
void debug_out() { cerr << endl; }
template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) { cerr << ends << H; debug_out(T...); }
#define debug(...) cerr << "{" << #__VA_ARGS__ << "}:", debug_out(__VA_ARGS__)
typedef long long ll;
typedef pair<int, int> pii;
const ll INF = 1e15;
const ll MOD = 1e9 + 7;
////////////////////////////////////////////////////////////////////
const int N = 5e5 + 5;
int B[N], P[N];
ll A[N], DP[N], S[N];
int main() {
ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
mt19937 Rnd(time(0));
int n; cin >> n;
for (int i = 1; i <= n; i++) cin >> A[i] >> B[i], P[i] = i;
sort(P + 1, P + 1 + n, [&](int i, int j) { return A[i] < A[j]; });
for (int i = 1; i <= n; i++) {
S[i] = max(S[i - 1] + B[P[i]], 1LL * (B[P[i]] + A[P[i]]));
DP[i] = max(DP[i - 1], S[i] - A[P[i]]);
}
cout << DP[n] << endl;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
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 |
4 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
384 KB |
Output is correct |
| 6 |
Correct |
4 ms |
384 KB |
Output is correct |
| 7 |
Correct |
4 ms |
384 KB |
Output is correct |
| 8 |
Correct |
4 ms |
384 KB |
Output is correct |
| 9 |
Correct |
5 ms |
384 KB |
Output is correct |
| 10 |
Correct |
4 ms |
384 KB |
Output is correct |
| 11 |
Correct |
5 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
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 |
4 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
384 KB |
Output is correct |
| 6 |
Correct |
4 ms |
384 KB |
Output is correct |
| 7 |
Correct |
4 ms |
384 KB |
Output is correct |
| 8 |
Correct |
4 ms |
384 KB |
Output is correct |
| 9 |
Correct |
5 ms |
384 KB |
Output is correct |
| 10 |
Correct |
4 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 |
| # |
Verdict |
Execution time |
Memory |
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 |
4 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
384 KB |
Output is correct |
| 6 |
Correct |
4 ms |
384 KB |
Output is correct |
| 7 |
Correct |
4 ms |
384 KB |
Output is correct |
| 8 |
Correct |
4 ms |
384 KB |
Output is correct |
| 9 |
Correct |
5 ms |
384 KB |
Output is correct |
| 10 |
Correct |
4 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 |
640 KB |
Output is correct |
| 28 |
Correct |
7 ms |
640 KB |
Output is correct |
| 29 |
Correct |
7 ms |
640 KB |
Output is correct |
| 30 |
Correct |
8 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 |
8 ms |
768 KB |
Output is correct |
| 35 |
Correct |
7 ms |
632 KB |
Output is correct |
| 36 |
Correct |
7 ms |
640 KB |
Output is correct |
| 37 |
Correct |
7 ms |
640 KB |
Output is correct |
| 38 |
Correct |
7 ms |
640 KB |
Output is correct |
| 39 |
Correct |
7 ms |
640 KB |
Output is correct |
| 40 |
Correct |
7 ms |
640 KB |
Output is correct |
| 41 |
Correct |
7 ms |
640 KB |
Output is correct |
| 42 |
Correct |
7 ms |
640 KB |
Output is correct |
| 43 |
Correct |
7 ms |
640 KB |
Output is correct |
| 44 |
Correct |
7 ms |
640 KB |
Output is correct |
| 45 |
Correct |
7 ms |
640 KB |
Output is correct |
| 46 |
Correct |
7 ms |
640 KB |
Output is correct |
| 47 |
Correct |
8 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 |
| # |
Verdict |
Execution time |
Memory |
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 |
4 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
384 KB |
Output is correct |
| 6 |
Correct |
4 ms |
384 KB |
Output is correct |
| 7 |
Correct |
4 ms |
384 KB |
Output is correct |
| 8 |
Correct |
4 ms |
384 KB |
Output is correct |
| 9 |
Correct |
5 ms |
384 KB |
Output is correct |
| 10 |
Correct |
4 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 |
640 KB |
Output is correct |
| 28 |
Correct |
7 ms |
640 KB |
Output is correct |
| 29 |
Correct |
7 ms |
640 KB |
Output is correct |
| 30 |
Correct |
8 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 |
8 ms |
768 KB |
Output is correct |
| 35 |
Correct |
7 ms |
632 KB |
Output is correct |
| 36 |
Correct |
7 ms |
640 KB |
Output is correct |
| 37 |
Correct |
7 ms |
640 KB |
Output is correct |
| 38 |
Correct |
7 ms |
640 KB |
Output is correct |
| 39 |
Correct |
7 ms |
640 KB |
Output is correct |
| 40 |
Correct |
7 ms |
640 KB |
Output is correct |
| 41 |
Correct |
7 ms |
640 KB |
Output is correct |
| 42 |
Correct |
7 ms |
640 KB |
Output is correct |
| 43 |
Correct |
7 ms |
640 KB |
Output is correct |
| 44 |
Correct |
7 ms |
640 KB |
Output is correct |
| 45 |
Correct |
7 ms |
640 KB |
Output is correct |
| 46 |
Correct |
7 ms |
640 KB |
Output is correct |
| 47 |
Correct |
8 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 |
248 ms |
28616 KB |
Output is correct |
| 53 |
Correct |
277 ms |
28808 KB |
Output is correct |
| 54 |
Correct |
247 ms |
28664 KB |
Output is correct |
| 55 |
Correct |
262 ms |
28664 KB |
Output is correct |
| 56 |
Correct |
245 ms |
28664 KB |
Output is correct |
| 57 |
Correct |
249 ms |
28664 KB |
Output is correct |
| 58 |
Correct |
259 ms |
28684 KB |
Output is correct |
| 59 |
Correct |
262 ms |
28664 KB |
Output is correct |
| 60 |
Correct |
266 ms |
28792 KB |
Output is correct |
| 61 |
Correct |
256 ms |
28632 KB |
Output is correct |
| 62 |
Correct |
254 ms |
28664 KB |
Output is correct |
| 63 |
Correct |
254 ms |
28664 KB |
Output is correct |
| 64 |
Correct |
248 ms |
28668 KB |
Output is correct |
| 65 |
Correct |
260 ms |
28664 KB |
Output is correct |
| 66 |
Correct |
261 ms |
28664 KB |
Output is correct |
| 67 |
Correct |
251 ms |
28664 KB |
Output is correct |
| 68 |
Correct |
248 ms |
28664 KB |
Output is correct |
