#include "bits/stdc++.h"
using namespace std;
const int maxn = 500005;
using ll = long long;
pair<ll, ll> p[maxn];
ll t[maxn << 2];
void upd(int node, int b, int e, int i, ll val){
if(i > e || i < b)return;
if(b == i && i == e){
t[node] = val;
return;
}
int mid = (b + e) >> 1;
upd(2*node, b, mid, i, val);
upd(2*node + 1, mid + 1, e, i, val);
t[node] = max(t[2*node], t[2*node + 1]);
}
ll query(int node, int b, int e, int i, int j){
if(i > j)return 0;
if(i > e || j < b)return 0;
if(b >= i && j >= e)return t[node];
int mid = (b + e) >> 1;
return max(query(2*node, b, mid, i, j), query(2*node + 1, mid + 1, e, i, j));
}
int main(int argc, char const *argv[])
{
// freopen("in.txt", "r", stdin);
int n;
scanf("%d", &n);
for(int i = 1; i <= n; i++){
scanf("%lld %lld", &p[i].first, &p[i].second);
}
sort(p + 1, p + n + 1);
vector<ll> pref(n + 1);
for(int i = 1; i <= n; i++){
pref[i] = pref[i - 1] + p[i].second;
}
ll ans = -1e18;
for(int i = 1; i <= n; i++){
upd(1, 1, n, i, p[i].first - pref[i - 1]);
}
for(int i = 1; i <= n; i++){
ans = max(ans, pref[i] - p[i].first + query(1, 1, n, 1, i));
}
cout << ans << endl;
return 0;
}
Compilation message
art.cpp: In function 'int main(int, const char**)':
art.cpp:34:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &n);
~~~~~^~~~~~~~~~
art.cpp:36:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld %lld", &p[i].first, &p[i].second);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 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 |
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 |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 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 |
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 |
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 |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 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 |
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 |
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 |
8 ms |
768 KB |
Output is correct |
| 28 |
Correct |
8 ms |
640 KB |
Output is correct |
| 29 |
Correct |
8 ms |
640 KB |
Output is correct |
| 30 |
Correct |
8 ms |
640 KB |
Output is correct |
| 31 |
Correct |
8 ms |
640 KB |
Output is correct |
| 32 |
Correct |
8 ms |
768 KB |
Output is correct |
| 33 |
Correct |
8 ms |
640 KB |
Output is correct |
| 34 |
Correct |
8 ms |
640 KB |
Output is correct |
| 35 |
Correct |
8 ms |
640 KB |
Output is correct |
| 36 |
Correct |
9 ms |
768 KB |
Output is correct |
| 37 |
Correct |
8 ms |
768 KB |
Output is correct |
| 38 |
Correct |
8 ms |
640 KB |
Output is correct |
| 39 |
Correct |
9 ms |
768 KB |
Output is correct |
| 40 |
Correct |
8 ms |
640 KB |
Output is correct |
| 41 |
Correct |
8 ms |
640 KB |
Output is correct |
| 42 |
Correct |
8 ms |
640 KB |
Output is correct |
| 43 |
Correct |
8 ms |
640 KB |
Output is correct |
| 44 |
Correct |
8 ms |
640 KB |
Output is correct |
| 45 |
Correct |
9 ms |
768 KB |
Output is correct |
| 46 |
Correct |
11 ms |
640 KB |
Output is correct |
| 47 |
Correct |
10 ms |
640 KB |
Output is correct |
| 48 |
Correct |
8 ms |
640 KB |
Output is correct |
| 49 |
Correct |
8 ms |
768 KB |
Output is correct |
| 50 |
Correct |
8 ms |
640 KB |
Output is correct |
| 51 |
Correct |
8 ms |
640 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 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 |
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 |
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 |
8 ms |
768 KB |
Output is correct |
| 28 |
Correct |
8 ms |
640 KB |
Output is correct |
| 29 |
Correct |
8 ms |
640 KB |
Output is correct |
| 30 |
Correct |
8 ms |
640 KB |
Output is correct |
| 31 |
Correct |
8 ms |
640 KB |
Output is correct |
| 32 |
Correct |
8 ms |
768 KB |
Output is correct |
| 33 |
Correct |
8 ms |
640 KB |
Output is correct |
| 34 |
Correct |
8 ms |
640 KB |
Output is correct |
| 35 |
Correct |
8 ms |
640 KB |
Output is correct |
| 36 |
Correct |
9 ms |
768 KB |
Output is correct |
| 37 |
Correct |
8 ms |
768 KB |
Output is correct |
| 38 |
Correct |
8 ms |
640 KB |
Output is correct |
| 39 |
Correct |
9 ms |
768 KB |
Output is correct |
| 40 |
Correct |
8 ms |
640 KB |
Output is correct |
| 41 |
Correct |
8 ms |
640 KB |
Output is correct |
| 42 |
Correct |
8 ms |
640 KB |
Output is correct |
| 43 |
Correct |
8 ms |
640 KB |
Output is correct |
| 44 |
Correct |
8 ms |
640 KB |
Output is correct |
| 45 |
Correct |
9 ms |
768 KB |
Output is correct |
| 46 |
Correct |
11 ms |
640 KB |
Output is correct |
| 47 |
Correct |
10 ms |
640 KB |
Output is correct |
| 48 |
Correct |
8 ms |
640 KB |
Output is correct |
| 49 |
Correct |
8 ms |
768 KB |
Output is correct |
| 50 |
Correct |
8 ms |
640 KB |
Output is correct |
| 51 |
Correct |
8 ms |
640 KB |
Output is correct |
| 52 |
Correct |
433 ms |
28536 KB |
Output is correct |
| 53 |
Correct |
419 ms |
32888 KB |
Output is correct |
| 54 |
Correct |
436 ms |
33016 KB |
Output is correct |
| 55 |
Correct |
439 ms |
32888 KB |
Output is correct |
| 56 |
Correct |
432 ms |
33144 KB |
Output is correct |
| 57 |
Correct |
427 ms |
32888 KB |
Output is correct |
| 58 |
Correct |
436 ms |
33016 KB |
Output is correct |
| 59 |
Correct |
423 ms |
32888 KB |
Output is correct |
| 60 |
Correct |
447 ms |
33016 KB |
Output is correct |
| 61 |
Correct |
425 ms |
32760 KB |
Output is correct |
| 62 |
Correct |
454 ms |
33096 KB |
Output is correct |
| 63 |
Correct |
431 ms |
32888 KB |
Output is correct |
| 64 |
Correct |
432 ms |
32864 KB |
Output is correct |
| 65 |
Correct |
447 ms |
33016 KB |
Output is correct |
| 66 |
Correct |
431 ms |
32888 KB |
Output is correct |
| 67 |
Correct |
442 ms |
33016 KB |
Output is correct |
| 68 |
Correct |
413 ms |
32888 KB |
Output is correct |
