#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include <debug.h>
#endif
#define st first
#define nd second
#define pb push_back
#define pf push_front
#define _pb pop_back
#define _pf pop_front
#define lb lower_bound
#define ub upper_bound
#define mtp make_tuple
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
typedef long long ll; typedef unsigned long long ull;
typedef double db; typedef long double ldb;
typedef pair<int, int> pi; typedef pair<ll, ll> pll;
typedef vector<int> vi; typedef vector<ll> vll; typedef vector<pi> vpi; typedef vector<pll> vpll;
typedef string str;
template<typename T> T gcd(T a, T b) { return (b == 0? a : gcd(b, a % b)); }
template<typename T> T lcm(T a, T b) { return a / gcd(a, b) * b; }
#define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
#define FOS(i, r, l) for (int (i) = (r); (i) >= (l); --(i))
#define EACH(i, x) for (auto &(i) : (x))
#define WHILE while
#define file "TEST"
mt19937 rd(chrono::steady_clock::now().time_since_epoch().count());
ll rand(ll l, ll r) { return uniform_int_distribution<ll>(l, r)(rd); }
/*
Tran The Bao
CTL - Da Lat
Practising for VOI23 gold medal
*/
const ll oo = 1e18;
const int N = 5e5 + 1;
int n;
pll a[N];
ll v[N], d[N], f[N], rs = -oo;
void upd(int ps, ll v) { for (int i = ps; i <= n; i += (i & -i)) f[i] = max(f[i], v); }
ll get(int ps) { ll rs = -oo; for (int i = ps; i >= 1; i -= (i & -i)) rs = max(rs, f[i]); return rs; }
signed main() {
ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
// freopen(file".inp", "r", stdin);
// freopen(file".out", "w", stdout);
cin >> n;
FOR(i, 1, n) {
cin >> a[i].st >> a[i].nd;
v[i] = a[i].st;
}
sort(a + 1, a + 1 + n);
sort(v + 1, v + 1 + n);
FOR(i, 1, n) d[i] = d[i - 1] + a[i].nd;
FOR(i, 1, n) f[i] = -oo;
FOR(i, 1, n) {
rs = max(rs, a[i].nd);
int pos = lb(v + 1, v + 1 + n, a[i].st) - v;
ll tmp = get(pos);
rs = max(rs, d[i] - a[i].st + tmp);
upd(pos, -d[i - 1] + a[i].st);
}
cout << rs;
return 0;
}
Compilation message
art.cpp: In function 'int main()':
art.cpp:24:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
24 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
| ^
art.cpp:48:5: note: in expansion of macro 'FOR'
48 | FOR(i, 1, n) {
| ^~~
art.cpp:24:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
24 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
| ^
art.cpp:54:5: note: in expansion of macro 'FOR'
54 | FOR(i, 1, n) d[i] = d[i - 1] + a[i].nd;
| ^~~
art.cpp:24:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
24 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
| ^
art.cpp:55:5: note: in expansion of macro 'FOR'
55 | FOR(i, 1, n) f[i] = -oo;
| ^~~
art.cpp:24:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
24 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
| ^
art.cpp:56:5: note: in expansion of macro 'FOR'
56 | FOR(i, 1, n) {
| ^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
332 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
336 KB |
Output is correct |
| 10 |
Correct |
0 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 |
332 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
336 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 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 |
340 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 |
340 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 |
340 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
332 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
336 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 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 |
340 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 |
340 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 |
340 KB |
Output is correct |
| 27 |
Correct |
3 ms |
572 KB |
Output is correct |
| 28 |
Correct |
3 ms |
596 KB |
Output is correct |
| 29 |
Correct |
3 ms |
596 KB |
Output is correct |
| 30 |
Correct |
3 ms |
596 KB |
Output is correct |
| 31 |
Correct |
3 ms |
596 KB |
Output is correct |
| 32 |
Correct |
4 ms |
596 KB |
Output is correct |
| 33 |
Correct |
4 ms |
596 KB |
Output is correct |
| 34 |
Correct |
3 ms |
604 KB |
Output is correct |
| 35 |
Correct |
4 ms |
604 KB |
Output is correct |
| 36 |
Correct |
3 ms |
596 KB |
Output is correct |
| 37 |
Correct |
3 ms |
596 KB |
Output is correct |
| 38 |
Correct |
3 ms |
592 KB |
Output is correct |
| 39 |
Correct |
3 ms |
568 KB |
Output is correct |
| 40 |
Correct |
3 ms |
596 KB |
Output is correct |
| 41 |
Correct |
3 ms |
596 KB |
Output is correct |
| 42 |
Correct |
3 ms |
596 KB |
Output is correct |
| 43 |
Correct |
3 ms |
596 KB |
Output is correct |
| 44 |
Correct |
3 ms |
676 KB |
Output is correct |
| 45 |
Correct |
3 ms |
596 KB |
Output is correct |
| 46 |
Correct |
3 ms |
596 KB |
Output is correct |
| 47 |
Correct |
4 ms |
572 KB |
Output is correct |
| 48 |
Correct |
3 ms |
596 KB |
Output is correct |
| 49 |
Correct |
3 ms |
596 KB |
Output is correct |
| 50 |
Correct |
3 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 |
332 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
336 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 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 |
340 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 |
340 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 |
340 KB |
Output is correct |
| 27 |
Correct |
3 ms |
572 KB |
Output is correct |
| 28 |
Correct |
3 ms |
596 KB |
Output is correct |
| 29 |
Correct |
3 ms |
596 KB |
Output is correct |
| 30 |
Correct |
3 ms |
596 KB |
Output is correct |
| 31 |
Correct |
3 ms |
596 KB |
Output is correct |
| 32 |
Correct |
4 ms |
596 KB |
Output is correct |
| 33 |
Correct |
4 ms |
596 KB |
Output is correct |
| 34 |
Correct |
3 ms |
604 KB |
Output is correct |
| 35 |
Correct |
4 ms |
604 KB |
Output is correct |
| 36 |
Correct |
3 ms |
596 KB |
Output is correct |
| 37 |
Correct |
3 ms |
596 KB |
Output is correct |
| 38 |
Correct |
3 ms |
592 KB |
Output is correct |
| 39 |
Correct |
3 ms |
568 KB |
Output is correct |
| 40 |
Correct |
3 ms |
596 KB |
Output is correct |
| 41 |
Correct |
3 ms |
596 KB |
Output is correct |
| 42 |
Correct |
3 ms |
596 KB |
Output is correct |
| 43 |
Correct |
3 ms |
596 KB |
Output is correct |
| 44 |
Correct |
3 ms |
676 KB |
Output is correct |
| 45 |
Correct |
3 ms |
596 KB |
Output is correct |
| 46 |
Correct |
3 ms |
596 KB |
Output is correct |
| 47 |
Correct |
4 ms |
572 KB |
Output is correct |
| 48 |
Correct |
3 ms |
596 KB |
Output is correct |
| 49 |
Correct |
3 ms |
596 KB |
Output is correct |
| 50 |
Correct |
3 ms |
596 KB |
Output is correct |
| 51 |
Correct |
3 ms |
596 KB |
Output is correct |
| 52 |
Correct |
276 ms |
25648 KB |
Output is correct |
| 53 |
Correct |
257 ms |
25752 KB |
Output is correct |
| 54 |
Correct |
257 ms |
25764 KB |
Output is correct |
| 55 |
Correct |
255 ms |
25872 KB |
Output is correct |
| 56 |
Correct |
250 ms |
25764 KB |
Output is correct |
| 57 |
Correct |
273 ms |
25768 KB |
Output is correct |
| 58 |
Correct |
263 ms |
25808 KB |
Output is correct |
| 59 |
Correct |
248 ms |
26060 KB |
Output is correct |
| 60 |
Correct |
255 ms |
26008 KB |
Output is correct |
| 61 |
Correct |
260 ms |
25936 KB |
Output is correct |
| 62 |
Correct |
271 ms |
25956 KB |
Output is correct |
| 63 |
Correct |
249 ms |
26096 KB |
Output is correct |
| 64 |
Correct |
259 ms |
26020 KB |
Output is correct |
| 65 |
Correct |
250 ms |
26024 KB |
Output is correct |
| 66 |
Correct |
257 ms |
26008 KB |
Output is correct |
| 67 |
Correct |
246 ms |
26008 KB |
Output is correct |
| 68 |
Correct |
247 ms |
25852 KB |
Output is correct |
