#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))
const int MAXN = 5e5 + 5;
template<class T> T gcd(T a, T b){ return ((b == 0) ? a : gcd(b, a % b)); }
int n;
ll b[MAXN], s1[4 * MAXN];
void build(int id = 1, int l = 1, int r = n + 1){
if(r - l < 2){
s1[id] = b[l];
return;
}
int mid = (l + r) / 2;
build(id * 2, l, mid);
build(id * 2 + 1, mid, r);
s1[id] = max(s1[id * 2], s1[id * 2 + 1]);
}
ll maxQ(int x, int y, int id = 1, int l = 1, int r = n + 1){
if(x >= r || l >= y) return -1e18;
if(x <= l && r <= y) return s1[id];
int mid = (l + r) / 2;
return max(maxQ(x, y, id * 2, l, mid), maxQ(x, y, id * 2 + 1, mid, r));
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
//freopen("input.in", "r", stdin);
//freopen("output.out", "w", stdout);
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;
repn(i, 1, n + 1) b[i] = sum[i] - a[i].fi;
build();
repn(i, 1, n + 1){
//we need to have the maximum valueSum -
ll mxScore = maxQ(i, n + 1);
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!
*/
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
4 ms |
384 KB |
Output is correct |
| 4 |
Correct |
4 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 |
4 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 |
4 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
4 ms |
384 KB |
Output is correct |
| 4 |
Correct |
4 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 |
4 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 |
4 ms |
384 KB |
Output is correct |
| 12 |
Correct |
4 ms |
256 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 |
4 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 |
4 ms |
384 KB |
Output is correct |
| 26 |
Correct |
4 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
4 ms |
384 KB |
Output is correct |
| 4 |
Correct |
4 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 |
4 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 |
4 ms |
384 KB |
Output is correct |
| 12 |
Correct |
4 ms |
256 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 |
4 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 |
4 ms |
384 KB |
Output is correct |
| 26 |
Correct |
4 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 |
7 ms |
640 KB |
Output is correct |
| 31 |
Correct |
7 ms |
640 KB |
Output is correct |
| 32 |
Correct |
8 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 |
7 ms |
640 KB |
Output is correct |
| 36 |
Correct |
9 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 |
8 ms |
640 KB |
Output is correct |
| 41 |
Correct |
7 ms |
640 KB |
Output is correct |
| 42 |
Correct |
8 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 |
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 |
8 ms |
768 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 |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
4 ms |
384 KB |
Output is correct |
| 4 |
Correct |
4 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 |
4 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 |
4 ms |
384 KB |
Output is correct |
| 12 |
Correct |
4 ms |
256 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 |
4 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 |
4 ms |
384 KB |
Output is correct |
| 26 |
Correct |
4 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 |
7 ms |
640 KB |
Output is correct |
| 31 |
Correct |
7 ms |
640 KB |
Output is correct |
| 32 |
Correct |
8 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 |
7 ms |
640 KB |
Output is correct |
| 36 |
Correct |
9 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 |
8 ms |
640 KB |
Output is correct |
| 41 |
Correct |
7 ms |
640 KB |
Output is correct |
| 42 |
Correct |
8 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 |
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 |
8 ms |
768 KB |
Output is correct |
| 51 |
Correct |
7 ms |
640 KB |
Output is correct |
| 52 |
Correct |
271 ms |
24264 KB |
Output is correct |
| 53 |
Correct |
281 ms |
36856 KB |
Output is correct |
| 54 |
Correct |
274 ms |
36832 KB |
Output is correct |
| 55 |
Correct |
276 ms |
36944 KB |
Output is correct |
| 56 |
Correct |
275 ms |
37128 KB |
Output is correct |
| 57 |
Correct |
275 ms |
36856 KB |
Output is correct |
| 58 |
Correct |
264 ms |
36856 KB |
Output is correct |
| 59 |
Correct |
271 ms |
36856 KB |
Output is correct |
| 60 |
Correct |
266 ms |
36856 KB |
Output is correct |
| 61 |
Correct |
277 ms |
36984 KB |
Output is correct |
| 62 |
Correct |
268 ms |
36856 KB |
Output is correct |
| 63 |
Correct |
268 ms |
36832 KB |
Output is correct |
| 64 |
Correct |
283 ms |
36856 KB |
Output is correct |
| 65 |
Correct |
272 ms |
36856 KB |
Output is correct |
| 66 |
Correct |
285 ms |
37112 KB |
Output is correct |
| 67 |
Correct |
277 ms |
36856 KB |
Output is correct |
| 68 |
Correct |
278 ms |
36856 KB |
Output is correct |
