#include <bits/stdc++.h>
#define ll long long
using namespace std;
long long ans,c,n;
pair<long long,long long>a[500005];
struct tutao{long long val,lazy;}st[2000020];
void Down(ll id)
{
long long t=st[id].lazy;
st[id*2].val+=t;
st[id*2].lazy+=t;
st[id*2+1].val+=t;
st[id*2+1].lazy+=t;
st[id].lazy=0;
}
void Update(ll id,ll l,ll r,ll u,ll v,ll val)
{
if(r<u||v<l)return;
if(u<=l&&r<=v)
{
st[id].val+=val;
st[id].lazy+=val;
return;
}
Down(id);
ll mid=(l+r)/2;
Update(id*2,l,mid,u,v,val);
Update(id*2+1,mid+1,r,u,v,val);
st[id].val=max(st[id*2].val,st[id*2+1].val);
}
long long Get(ll id,ll l,ll r,ll u,ll v)
{
if(r<u||v<l)return -1e18;
if(u<=l&&r<=v)return st[id].val;
Down(id);
ll mid=(l+r)/2;
return max(Get(id*2,l,mid,u,v),Get(id*2+1,mid+1,r,u,v));
}
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(NULL);
cout.tie(NULL);
cin>>n;
for(int i=1;i<=n;i++)cin>>a[i].first>>a[i].second;
sort(a+1,a+n+1);
ans=a[1].second;
Update(1,1,n,1,1,a[1].first+a[1].second);
for(int i=2;i<=n;i++)
{
ans=max(ans,a[i].second);
c=Get(1,1,n,1,i-1);
ans=max(ans,c+a[i].second-a[i].first);
Update(1,1,n,i,i,a[i].first+a[i].second);
Update(1,1,n,1,i-1,a[i].second);
}
cout<<ans;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2384 KB |
Output is correct |
2 |
Correct |
1 ms |
2384 KB |
Output is correct |
3 |
Correct |
1 ms |
2384 KB |
Output is correct |
4 |
Correct |
1 ms |
2384 KB |
Output is correct |
5 |
Correct |
1 ms |
2384 KB |
Output is correct |
6 |
Correct |
1 ms |
2384 KB |
Output is correct |
7 |
Correct |
1 ms |
2384 KB |
Output is correct |
8 |
Correct |
1 ms |
2384 KB |
Output is correct |
9 |
Correct |
1 ms |
2384 KB |
Output is correct |
10 |
Correct |
1 ms |
2552 KB |
Output is correct |
11 |
Correct |
1 ms |
2384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2384 KB |
Output is correct |
2 |
Correct |
1 ms |
2384 KB |
Output is correct |
3 |
Correct |
1 ms |
2384 KB |
Output is correct |
4 |
Correct |
1 ms |
2384 KB |
Output is correct |
5 |
Correct |
1 ms |
2384 KB |
Output is correct |
6 |
Correct |
1 ms |
2384 KB |
Output is correct |
7 |
Correct |
1 ms |
2384 KB |
Output is correct |
8 |
Correct |
1 ms |
2384 KB |
Output is correct |
9 |
Correct |
1 ms |
2384 KB |
Output is correct |
10 |
Correct |
1 ms |
2552 KB |
Output is correct |
11 |
Correct |
1 ms |
2384 KB |
Output is correct |
12 |
Correct |
1 ms |
2384 KB |
Output is correct |
13 |
Correct |
1 ms |
2384 KB |
Output is correct |
14 |
Correct |
1 ms |
2384 KB |
Output is correct |
15 |
Correct |
1 ms |
2384 KB |
Output is correct |
16 |
Correct |
1 ms |
2384 KB |
Output is correct |
17 |
Correct |
1 ms |
2384 KB |
Output is correct |
18 |
Correct |
1 ms |
2384 KB |
Output is correct |
19 |
Correct |
1 ms |
2384 KB |
Output is correct |
20 |
Correct |
1 ms |
2384 KB |
Output is correct |
21 |
Correct |
1 ms |
2556 KB |
Output is correct |
22 |
Correct |
1 ms |
2384 KB |
Output is correct |
23 |
Correct |
1 ms |
2384 KB |
Output is correct |
24 |
Correct |
1 ms |
2384 KB |
Output is correct |
25 |
Correct |
1 ms |
2384 KB |
Output is correct |
26 |
Correct |
1 ms |
2384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2384 KB |
Output is correct |
2 |
Correct |
1 ms |
2384 KB |
Output is correct |
3 |
Correct |
1 ms |
2384 KB |
Output is correct |
4 |
Correct |
1 ms |
2384 KB |
Output is correct |
5 |
Correct |
1 ms |
2384 KB |
Output is correct |
6 |
Correct |
1 ms |
2384 KB |
Output is correct |
7 |
Correct |
1 ms |
2384 KB |
Output is correct |
8 |
Correct |
1 ms |
2384 KB |
Output is correct |
9 |
Correct |
1 ms |
2384 KB |
Output is correct |
10 |
Correct |
1 ms |
2552 KB |
Output is correct |
11 |
Correct |
1 ms |
2384 KB |
Output is correct |
12 |
Correct |
1 ms |
2384 KB |
Output is correct |
13 |
Correct |
1 ms |
2384 KB |
Output is correct |
14 |
Correct |
1 ms |
2384 KB |
Output is correct |
15 |
Correct |
1 ms |
2384 KB |
Output is correct |
16 |
Correct |
1 ms |
2384 KB |
Output is correct |
17 |
Correct |
1 ms |
2384 KB |
Output is correct |
18 |
Correct |
1 ms |
2384 KB |
Output is correct |
19 |
Correct |
1 ms |
2384 KB |
Output is correct |
20 |
Correct |
1 ms |
2384 KB |
Output is correct |
21 |
Correct |
1 ms |
2556 KB |
Output is correct |
22 |
Correct |
1 ms |
2384 KB |
Output is correct |
23 |
Correct |
1 ms |
2384 KB |
Output is correct |
24 |
Correct |
1 ms |
2384 KB |
Output is correct |
25 |
Correct |
1 ms |
2384 KB |
Output is correct |
26 |
Correct |
1 ms |
2384 KB |
Output is correct |
27 |
Correct |
4 ms |
4688 KB |
Output is correct |
28 |
Correct |
4 ms |
4736 KB |
Output is correct |
29 |
Correct |
4 ms |
4860 KB |
Output is correct |
30 |
Correct |
4 ms |
4688 KB |
Output is correct |
31 |
Correct |
4 ms |
4688 KB |
Output is correct |
32 |
Correct |
4 ms |
4688 KB |
Output is correct |
33 |
Correct |
5 ms |
4688 KB |
Output is correct |
34 |
Correct |
4 ms |
4604 KB |
Output is correct |
35 |
Correct |
5 ms |
4688 KB |
Output is correct |
36 |
Correct |
5 ms |
4688 KB |
Output is correct |
37 |
Correct |
4 ms |
4688 KB |
Output is correct |
38 |
Correct |
4 ms |
4688 KB |
Output is correct |
39 |
Correct |
4 ms |
4688 KB |
Output is correct |
40 |
Correct |
5 ms |
4688 KB |
Output is correct |
41 |
Correct |
5 ms |
4688 KB |
Output is correct |
42 |
Correct |
4 ms |
4688 KB |
Output is correct |
43 |
Correct |
4 ms |
4688 KB |
Output is correct |
44 |
Correct |
4 ms |
4688 KB |
Output is correct |
45 |
Correct |
4 ms |
4688 KB |
Output is correct |
46 |
Correct |
4 ms |
4688 KB |
Output is correct |
47 |
Correct |
4 ms |
4688 KB |
Output is correct |
48 |
Correct |
4 ms |
4688 KB |
Output is correct |
49 |
Correct |
4 ms |
4688 KB |
Output is correct |
50 |
Correct |
4 ms |
4568 KB |
Output is correct |
51 |
Correct |
4 ms |
4688 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2384 KB |
Output is correct |
2 |
Correct |
1 ms |
2384 KB |
Output is correct |
3 |
Correct |
1 ms |
2384 KB |
Output is correct |
4 |
Correct |
1 ms |
2384 KB |
Output is correct |
5 |
Correct |
1 ms |
2384 KB |
Output is correct |
6 |
Correct |
1 ms |
2384 KB |
Output is correct |
7 |
Correct |
1 ms |
2384 KB |
Output is correct |
8 |
Correct |
1 ms |
2384 KB |
Output is correct |
9 |
Correct |
1 ms |
2384 KB |
Output is correct |
10 |
Correct |
1 ms |
2552 KB |
Output is correct |
11 |
Correct |
1 ms |
2384 KB |
Output is correct |
12 |
Correct |
1 ms |
2384 KB |
Output is correct |
13 |
Correct |
1 ms |
2384 KB |
Output is correct |
14 |
Correct |
1 ms |
2384 KB |
Output is correct |
15 |
Correct |
1 ms |
2384 KB |
Output is correct |
16 |
Correct |
1 ms |
2384 KB |
Output is correct |
17 |
Correct |
1 ms |
2384 KB |
Output is correct |
18 |
Correct |
1 ms |
2384 KB |
Output is correct |
19 |
Correct |
1 ms |
2384 KB |
Output is correct |
20 |
Correct |
1 ms |
2384 KB |
Output is correct |
21 |
Correct |
1 ms |
2556 KB |
Output is correct |
22 |
Correct |
1 ms |
2384 KB |
Output is correct |
23 |
Correct |
1 ms |
2384 KB |
Output is correct |
24 |
Correct |
1 ms |
2384 KB |
Output is correct |
25 |
Correct |
1 ms |
2384 KB |
Output is correct |
26 |
Correct |
1 ms |
2384 KB |
Output is correct |
27 |
Correct |
4 ms |
4688 KB |
Output is correct |
28 |
Correct |
4 ms |
4736 KB |
Output is correct |
29 |
Correct |
4 ms |
4860 KB |
Output is correct |
30 |
Correct |
4 ms |
4688 KB |
Output is correct |
31 |
Correct |
4 ms |
4688 KB |
Output is correct |
32 |
Correct |
4 ms |
4688 KB |
Output is correct |
33 |
Correct |
5 ms |
4688 KB |
Output is correct |
34 |
Correct |
4 ms |
4604 KB |
Output is correct |
35 |
Correct |
5 ms |
4688 KB |
Output is correct |
36 |
Correct |
5 ms |
4688 KB |
Output is correct |
37 |
Correct |
4 ms |
4688 KB |
Output is correct |
38 |
Correct |
4 ms |
4688 KB |
Output is correct |
39 |
Correct |
4 ms |
4688 KB |
Output is correct |
40 |
Correct |
5 ms |
4688 KB |
Output is correct |
41 |
Correct |
5 ms |
4688 KB |
Output is correct |
42 |
Correct |
4 ms |
4688 KB |
Output is correct |
43 |
Correct |
4 ms |
4688 KB |
Output is correct |
44 |
Correct |
4 ms |
4688 KB |
Output is correct |
45 |
Correct |
4 ms |
4688 KB |
Output is correct |
46 |
Correct |
4 ms |
4688 KB |
Output is correct |
47 |
Correct |
4 ms |
4688 KB |
Output is correct |
48 |
Correct |
4 ms |
4688 KB |
Output is correct |
49 |
Correct |
4 ms |
4688 KB |
Output is correct |
50 |
Correct |
4 ms |
4568 KB |
Output is correct |
51 |
Correct |
4 ms |
4688 KB |
Output is correct |
52 |
Correct |
360 ms |
25192 KB |
Output is correct |
53 |
Correct |
396 ms |
25160 KB |
Output is correct |
54 |
Correct |
350 ms |
25160 KB |
Output is correct |
55 |
Correct |
354 ms |
25164 KB |
Output is correct |
56 |
Correct |
349 ms |
25168 KB |
Output is correct |
57 |
Correct |
348 ms |
25056 KB |
Output is correct |
58 |
Correct |
352 ms |
25236 KB |
Output is correct |
59 |
Correct |
345 ms |
25040 KB |
Output is correct |
60 |
Correct |
391 ms |
25168 KB |
Output is correct |
61 |
Correct |
376 ms |
25044 KB |
Output is correct |
62 |
Correct |
360 ms |
25100 KB |
Output is correct |
63 |
Correct |
380 ms |
25080 KB |
Output is correct |
64 |
Correct |
368 ms |
25160 KB |
Output is correct |
65 |
Correct |
356 ms |
25160 KB |
Output is correct |
66 |
Correct |
362 ms |
25168 KB |
Output is correct |
67 |
Correct |
368 ms |
25044 KB |
Output is correct |
68 |
Correct |
366 ms |
25156 KB |
Output is correct |