#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef vector<int> vi;
typedef pair<int, int> pi;
#define debug(x) cerr << #x << ": " << x << endl;
#define debug2(x, y) debug(x) debug(y);
#define repn(i, a, b) for(int i = (int)(a); i < (int)(b); i++)
#define rep(i, a) for(int i = 0; i < (int)(a); i++)
#define all(v) v.begin(), v.end()
#define mp make_pair
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define fi first
#define se second
#define sq(x) ((x) * (x))
template<class T> T gcd(T a, T b){ return ((b == 0) ? a : gcd(b, a % b)); }
int main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
//freopen("input.in", "r", stdin);
//freopen("output.out", "w", stdout);
int n;
cin >> n;
vector<pair<ll, ll>> a(n + 1);
repn(i, 1, n + 1) cin >> a[i].fi >> a[i].se;
sort(1 + all(a));
vector<ll> sum(n + 1, 0);
repn(i, 1, n + 1) sum[i] += sum[i - 1] + a[i].se;
ll ans = 0;
vector<ll> maxQ(n + 2, -1e18);
for(int i = n; i >= 1; i--) maxQ[i] = max(maxQ[i + 1], sum[i] - a[i].fi);
repn(i, 1, n + 1){
ll mxScore = maxQ[i];
ans = max(ans, mxScore - sum[i - 1] + a[i].fi);
}
cout << ans << endl;
return 0;
}
/*
Things to look out for:
- Integer overflows
- Array bounds
- Special cases
Be careful!
*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
4 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
4 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
4 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
4 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 |
4 ms |
384 KB |
Output is correct |
24 |
Correct |
5 ms |
384 KB |
Output is correct |
25 |
Correct |
4 ms |
384 KB |
Output is correct |
26 |
Correct |
5 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
4 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
4 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 |
4 ms |
384 KB |
Output is correct |
24 |
Correct |
5 ms |
384 KB |
Output is correct |
25 |
Correct |
4 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 |
6 ms |
768 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 |
6 ms |
640 KB |
Output is correct |
33 |
Correct |
7 ms |
640 KB |
Output is correct |
34 |
Correct |
6 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 |
640 KB |
Output is correct |
38 |
Correct |
6 ms |
640 KB |
Output is correct |
39 |
Correct |
7 ms |
640 KB |
Output is correct |
40 |
Correct |
6 ms |
640 KB |
Output is correct |
41 |
Correct |
6 ms |
640 KB |
Output is correct |
42 |
Correct |
6 ms |
640 KB |
Output is correct |
43 |
Correct |
7 ms |
640 KB |
Output is correct |
44 |
Correct |
6 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 |
6 ms |
640 KB |
Output is correct |
51 |
Correct |
7 ms |
560 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
4 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
4 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 |
4 ms |
384 KB |
Output is correct |
24 |
Correct |
5 ms |
384 KB |
Output is correct |
25 |
Correct |
4 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 |
6 ms |
768 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 |
6 ms |
640 KB |
Output is correct |
33 |
Correct |
7 ms |
640 KB |
Output is correct |
34 |
Correct |
6 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 |
640 KB |
Output is correct |
38 |
Correct |
6 ms |
640 KB |
Output is correct |
39 |
Correct |
7 ms |
640 KB |
Output is correct |
40 |
Correct |
6 ms |
640 KB |
Output is correct |
41 |
Correct |
6 ms |
640 KB |
Output is correct |
42 |
Correct |
6 ms |
640 KB |
Output is correct |
43 |
Correct |
7 ms |
640 KB |
Output is correct |
44 |
Correct |
6 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 |
6 ms |
640 KB |
Output is correct |
51 |
Correct |
7 ms |
560 KB |
Output is correct |
52 |
Correct |
221 ms |
19064 KB |
Output is correct |
53 |
Correct |
225 ms |
19192 KB |
Output is correct |
54 |
Correct |
221 ms |
19064 KB |
Output is correct |
55 |
Correct |
224 ms |
19136 KB |
Output is correct |
56 |
Correct |
225 ms |
19192 KB |
Output is correct |
57 |
Correct |
218 ms |
19068 KB |
Output is correct |
58 |
Correct |
221 ms |
19064 KB |
Output is correct |
59 |
Correct |
227 ms |
19064 KB |
Output is correct |
60 |
Correct |
224 ms |
19192 KB |
Output is correct |
61 |
Correct |
220 ms |
19064 KB |
Output is correct |
62 |
Correct |
222 ms |
19064 KB |
Output is correct |
63 |
Correct |
230 ms |
19236 KB |
Output is correct |
64 |
Correct |
237 ms |
19112 KB |
Output is correct |
65 |
Correct |
219 ms |
19068 KB |
Output is correct |
66 |
Correct |
223 ms |
18788 KB |
Output is correct |
67 |
Correct |
222 ms |
18680 KB |
Output is correct |
68 |
Correct |
225 ms |
18808 KB |
Output is correct |