#include <bits/stdc++.h>
#define int long long
#define mid (x+y)/2
using namespace std;
int n,ans,par[500005];
pair<int,int> a[500005];
int t[500005<<2];
void build(int id,int x,int y)
{
if (x==y) t[id]=a[x].first-par[x-1];
else {
build(id*2,x,mid);
build(id*2+1,mid+1,y);
t[id]=max(t[id*2],t[id*2+1]);
}
}
int query(int id,int x,int y,int l,int r)
{
if (x>r || y<l) return 0;
if (l<=x && y<=r) return t[id];
return max(query(id*2,x,mid,l,r),query(id*2+1,mid+1,y,l,r));
}
signed main()
{
cin>>n;
for (int i=1;i<=n;i++) cin>>a[i].first>>a[i].second;
sort(a+1,a+1+n);
for (int i=1;i<=n;i++) par[i]=par[i-1]+a[i].second;
build(1,1,n);
for (int i=1;i<=n;i++){
ans=max(ans,par[i]-a[i].first+query(1,1,n,1,i));
}
cout<<ans<<'\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
308 KB |
Output is correct |
5 |
Correct |
1 ms |
304 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
292 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
284 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
308 KB |
Output is correct |
5 |
Correct |
1 ms |
304 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
292 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
284 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
312 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 |
308 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 |
316 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 |
308 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
308 KB |
Output is correct |
5 |
Correct |
1 ms |
304 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
292 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
284 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
312 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 |
308 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 |
316 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 |
308 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
6 ms |
692 KB |
Output is correct |
28 |
Correct |
7 ms |
576 KB |
Output is correct |
29 |
Correct |
6 ms |
596 KB |
Output is correct |
30 |
Correct |
6 ms |
684 KB |
Output is correct |
31 |
Correct |
7 ms |
596 KB |
Output is correct |
32 |
Correct |
7 ms |
628 KB |
Output is correct |
33 |
Correct |
6 ms |
596 KB |
Output is correct |
34 |
Correct |
6 ms |
700 KB |
Output is correct |
35 |
Correct |
7 ms |
580 KB |
Output is correct |
36 |
Correct |
6 ms |
684 KB |
Output is correct |
37 |
Correct |
7 ms |
704 KB |
Output is correct |
38 |
Correct |
6 ms |
596 KB |
Output is correct |
39 |
Correct |
6 ms |
596 KB |
Output is correct |
40 |
Correct |
6 ms |
576 KB |
Output is correct |
41 |
Correct |
5 ms |
596 KB |
Output is correct |
42 |
Correct |
6 ms |
700 KB |
Output is correct |
43 |
Correct |
6 ms |
596 KB |
Output is correct |
44 |
Correct |
6 ms |
572 KB |
Output is correct |
45 |
Correct |
6 ms |
688 KB |
Output is correct |
46 |
Correct |
5 ms |
640 KB |
Output is correct |
47 |
Correct |
6 ms |
684 KB |
Output is correct |
48 |
Correct |
6 ms |
576 KB |
Output is correct |
49 |
Correct |
5 ms |
596 KB |
Output is correct |
50 |
Correct |
5 ms |
632 KB |
Output is correct |
51 |
Correct |
6 ms |
636 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
308 KB |
Output is correct |
5 |
Correct |
1 ms |
304 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
292 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
284 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
312 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 |
308 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 |
316 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 |
308 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
6 ms |
692 KB |
Output is correct |
28 |
Correct |
7 ms |
576 KB |
Output is correct |
29 |
Correct |
6 ms |
596 KB |
Output is correct |
30 |
Correct |
6 ms |
684 KB |
Output is correct |
31 |
Correct |
7 ms |
596 KB |
Output is correct |
32 |
Correct |
7 ms |
628 KB |
Output is correct |
33 |
Correct |
6 ms |
596 KB |
Output is correct |
34 |
Correct |
6 ms |
700 KB |
Output is correct |
35 |
Correct |
7 ms |
580 KB |
Output is correct |
36 |
Correct |
6 ms |
684 KB |
Output is correct |
37 |
Correct |
7 ms |
704 KB |
Output is correct |
38 |
Correct |
6 ms |
596 KB |
Output is correct |
39 |
Correct |
6 ms |
596 KB |
Output is correct |
40 |
Correct |
6 ms |
576 KB |
Output is correct |
41 |
Correct |
5 ms |
596 KB |
Output is correct |
42 |
Correct |
6 ms |
700 KB |
Output is correct |
43 |
Correct |
6 ms |
596 KB |
Output is correct |
44 |
Correct |
6 ms |
572 KB |
Output is correct |
45 |
Correct |
6 ms |
688 KB |
Output is correct |
46 |
Correct |
5 ms |
640 KB |
Output is correct |
47 |
Correct |
6 ms |
684 KB |
Output is correct |
48 |
Correct |
6 ms |
576 KB |
Output is correct |
49 |
Correct |
5 ms |
596 KB |
Output is correct |
50 |
Correct |
5 ms |
632 KB |
Output is correct |
51 |
Correct |
6 ms |
636 KB |
Output is correct |
52 |
Correct |
580 ms |
32824 KB |
Output is correct |
53 |
Correct |
562 ms |
32768 KB |
Output is correct |
54 |
Correct |
596 ms |
32888 KB |
Output is correct |
55 |
Correct |
548 ms |
32800 KB |
Output is correct |
56 |
Correct |
554 ms |
32844 KB |
Output is correct |
57 |
Correct |
571 ms |
32812 KB |
Output is correct |
58 |
Correct |
543 ms |
32940 KB |
Output is correct |
59 |
Correct |
551 ms |
32796 KB |
Output is correct |
60 |
Correct |
581 ms |
32856 KB |
Output is correct |
61 |
Correct |
548 ms |
32636 KB |
Output is correct |
62 |
Correct |
562 ms |
32840 KB |
Output is correct |
63 |
Correct |
541 ms |
32972 KB |
Output is correct |
64 |
Correct |
548 ms |
32844 KB |
Output is correct |
65 |
Correct |
550 ms |
32788 KB |
Output is correct |
66 |
Correct |
544 ms |
32880 KB |
Output is correct |
67 |
Correct |
538 ms |
32952 KB |
Output is correct |
68 |
Correct |
560 ms |
32924 KB |
Output is correct |