#include <bits/stdc++.h>
#define ll int
#define cst const long long
#define ff first
#define ss second
using namespace std;
ll o,d,m,n,a1,a2,a3,l,r,i,j,x,y,u,v,k,w,z,M,q,p[500005],f[2000005];
cst mod=1e9+7;
pair<ll,ll> a[500005];
void up(ll id,ll l,ll r,ll i,ll v)
{
if(i<l || i>r) return;
if(l==r)
{
f[id]=v;
return;
}
ll mid=(l+r)/2;
up(id*2,l,mid,i,v); up(id*2+1,mid+1,r,i,v);
f[id]=max(f[id*2],f[id*2+1]);
}
ll lay(ll id,ll l,ll r,ll u,ll v)
{
if(l>r) return 0;
if(v<l || r<u) return 0;
if(u<=l && v>=r) return f[id];
ll mid=(l+r)/2;
return max(lay(id*2,l,mid,u,v),lay(id*2+1,mid+1,r,u,v));
}
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);cout.tie(0);
cin >> n;
for(ll i=1;i<=n;i++) cin >> a[i].ff >> a[i].ss;
sort(a+1,a+1+n);
for(ll i=1;i<=n;i++) p[i]=p[i-1]+a[i].ss;
for(ll i=1;i<=n;i++)
{
d=lay(1,1,n,1,i-1);
w=max(w,d+p[i]-a[i].ff);
up(1,1,n,i,d-p[i-1]+a[i].ff);
}
cout << w;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
1 ms |
2384 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
1 ms |
2384 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
1 ms |
2384 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
1 ms |
2384 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
