#include<bits/stdc++.h>
using namespace std;
const int N=5e5;
int n;
pair<long long,long long>p[N+5];
long long inf=1e18,res=-inf;
struct SegmentTree{
long long st[N*4+5],lazy[N*4+5];
void down(int id) {
long long t=lazy[id];
if (t==0) return;
lazy[id]=0;
lazy[id*2]+=t;
st[id*2]+=t;
lazy[id*2+1]+=t;
st[id*2+1]+=t;
}
void update(int id,int l,int r,int u,int v,long long val) {
if (l>v||r<u||u>v) return;
if (u<=l&&r<=v) {
st[id]+=val;
lazy[id]+=val;
return;
}
down(id);
int mid=(l+r)/2;
update(id*2,l,mid,u,v,val);
update(id*2+1,mid+1,r,u,v,val);
st[id]=max(st[id*2],st[id*2+1]);
}
long long get(int id,int l,int r,int u,int v) {
if (l>v||r<u||u>v) return -inf;
if (u<=l&&r<=v) return st[id];
down(id);
int mid=(l+r)/2;
return max(get(id*2,l,mid,u,v),get(id*2+1,mid+1,r,u,v));
}
} tree;
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
cin>>n;
for (int i=1;i<=n;i++) {
cin>>p[i].first>>p[i].second;
res=max(res,p[i].second);
}
sort(p+1,p+1+n);
for (int i=1;i<=n;i++) {
tree.update(1,1,n,i,i,p[i].first+p[i].second);
tree.update(1,1,n,1,i-1,p[i].second);
res=max(res,-p[i].first+tree.get(1,1,n,1,i-1));
//cout<<p[i].first<<' '<<p[i].second<<' '<<res<<endl;
}
cout<<res;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
2384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
2552 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 |
2552 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2384 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2384 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2384 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
2384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
2552 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 |
2552 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2384 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2384 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 |
2636 KB |
Output is correct |
| 21 |
Correct |
2 ms |
2384 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 |
2 ms |
2384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
2552 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 |
2552 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2384 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2384 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 |
2636 KB |
Output is correct |
| 21 |
Correct |
2 ms |
2384 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 |
5 ms |
2896 KB |
Output is correct |
| 28 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 29 |
Correct |
3 ms |
2896 KB |
Output is correct |
| 30 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 31 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 32 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 33 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 34 |
Correct |
4 ms |
2640 KB |
Output is correct |
| 35 |
Correct |
5 ms |
2640 KB |
Output is correct |
| 36 |
Correct |
3 ms |
2896 KB |
Output is correct |
| 37 |
Correct |
4 ms |
3060 KB |
Output is correct |
| 38 |
Correct |
3 ms |
2896 KB |
Output is correct |
| 39 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 40 |
Correct |
4 ms |
2640 KB |
Output is correct |
| 41 |
Correct |
5 ms |
2896 KB |
Output is correct |
| 42 |
Correct |
4 ms |
2884 KB |
Output is correct |
| 43 |
Correct |
4 ms |
2736 KB |
Output is correct |
| 44 |
Correct |
3 ms |
2896 KB |
Output is correct |
| 45 |
Correct |
3 ms |
2908 KB |
Output is correct |
| 46 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 47 |
Correct |
3 ms |
2896 KB |
Output is correct |
| 48 |
Correct |
4 ms |
2892 KB |
Output is correct |
| 49 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 50 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 51 |
Correct |
4 ms |
2888 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
2384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
2552 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 |
2552 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2384 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2384 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 |
2636 KB |
Output is correct |
| 21 |
Correct |
2 ms |
2384 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 |
5 ms |
2896 KB |
Output is correct |
| 28 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 29 |
Correct |
3 ms |
2896 KB |
Output is correct |
| 30 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 31 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 32 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 33 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 34 |
Correct |
4 ms |
2640 KB |
Output is correct |
| 35 |
Correct |
5 ms |
2640 KB |
Output is correct |
| 36 |
Correct |
3 ms |
2896 KB |
Output is correct |
| 37 |
Correct |
4 ms |
3060 KB |
Output is correct |
| 38 |
Correct |
3 ms |
2896 KB |
Output is correct |
| 39 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 40 |
Correct |
4 ms |
2640 KB |
Output is correct |
| 41 |
Correct |
5 ms |
2896 KB |
Output is correct |
| 42 |
Correct |
4 ms |
2884 KB |
Output is correct |
| 43 |
Correct |
4 ms |
2736 KB |
Output is correct |
| 44 |
Correct |
3 ms |
2896 KB |
Output is correct |
| 45 |
Correct |
3 ms |
2908 KB |
Output is correct |
| 46 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 47 |
Correct |
3 ms |
2896 KB |
Output is correct |
| 48 |
Correct |
4 ms |
2892 KB |
Output is correct |
| 49 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 50 |
Correct |
4 ms |
2896 KB |
Output is correct |
| 51 |
Correct |
4 ms |
2888 KB |
Output is correct |
| 52 |
Correct |
283 ms |
35144 KB |
Output is correct |
| 53 |
Correct |
291 ms |
31816 KB |
Output is correct |
| 54 |
Correct |
293 ms |
35140 KB |
Output is correct |
| 55 |
Correct |
291 ms |
25160 KB |
Output is correct |
| 56 |
Correct |
298 ms |
35024 KB |
Output is correct |
| 57 |
Correct |
292 ms |
31832 KB |
Output is correct |
| 58 |
Correct |
292 ms |
25040 KB |
Output is correct |
| 59 |
Correct |
274 ms |
31816 KB |
Output is correct |
| 60 |
Correct |
272 ms |
35280 KB |
Output is correct |
| 61 |
Correct |
281 ms |
31560 KB |
Output is correct |
| 62 |
Correct |
274 ms |
35144 KB |
Output is correct |
| 63 |
Correct |
286 ms |
31876 KB |
Output is correct |
| 64 |
Correct |
280 ms |
31704 KB |
Output is correct |
| 65 |
Correct |
290 ms |
35100 KB |
Output is correct |
| 66 |
Correct |
283 ms |
35056 KB |
Output is correct |
| 67 |
Correct |
292 ms |
31844 KB |
Output is correct |
| 68 |
Correct |
296 ms |
36536 KB |
Output is correct |
