#include<bits/stdc++.h>
using namespace std;
struct data
{
long long a, b;
bool operator < (const data & o) const
{
return a < o.a;
}
};
struct tree
{
long long s, sl, sr, ans;
};
data arr[500500];
tree seg[2002000];
void build(int l, int r, int idx)
{
if(l == r)
{
seg[idx] = {arr[l].b, arr[l].b - arr[l].a, arr[l].b + arr[l].a, arr[l].b};
return ;
}
int mid = (l+r)>>1;
build(l, mid, idx<<1);
build(mid+1, r, idx<<1|1);
long long S = seg[idx<<1].s + seg[idx<<1|1].s;
long long SL = max(seg[idx<<1].sl, seg[idx<<1].s + seg[idx<<1|1].sl);
long long SR = max(seg[idx<<1|1].sr, seg[idx<<1|1].s + seg[idx<<1].sr);
long long ANS = max(max(seg[idx<<1].ans, seg[idx<<1|1].ans), seg[idx<<1].sr + seg[idx<<1|1].sl);
seg[idx] = {S, SL, SR, ANS};
}
int main()
{
int n;
scanf(" %d",&n);
for(int i=1 ; i<=n ; i++)
scanf(" %lld %lld",&arr[i].a, &arr[i].b);
sort(arr+1, arr+n+1);
build(1, n, 1);
printf("%lld\n",seg[1].ans);
return 0;
}
Compilation message
art.cpp: In function 'int main()':
art.cpp:41:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf(" %d",&n);
~~~~~^~~~~~~~~~
art.cpp:43:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf(" %lld %lld",&arr[i].a, &arr[i].b);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
376 KB |
Output is correct |
| 2 |
Correct |
5 ms |
376 KB |
Output is correct |
| 3 |
Correct |
5 ms |
376 KB |
Output is correct |
| 4 |
Correct |
5 ms |
376 KB |
Output is correct |
| 5 |
Correct |
5 ms |
376 KB |
Output is correct |
| 6 |
Correct |
5 ms |
376 KB |
Output is correct |
| 7 |
Correct |
5 ms |
376 KB |
Output is correct |
| 8 |
Correct |
5 ms |
376 KB |
Output is correct |
| 9 |
Correct |
5 ms |
376 KB |
Output is correct |
| 10 |
Correct |
5 ms |
376 KB |
Output is correct |
| 11 |
Correct |
5 ms |
376 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
376 KB |
Output is correct |
| 2 |
Correct |
5 ms |
376 KB |
Output is correct |
| 3 |
Correct |
5 ms |
376 KB |
Output is correct |
| 4 |
Correct |
5 ms |
376 KB |
Output is correct |
| 5 |
Correct |
5 ms |
376 KB |
Output is correct |
| 6 |
Correct |
5 ms |
376 KB |
Output is correct |
| 7 |
Correct |
5 ms |
376 KB |
Output is correct |
| 8 |
Correct |
5 ms |
376 KB |
Output is correct |
| 9 |
Correct |
5 ms |
376 KB |
Output is correct |
| 10 |
Correct |
5 ms |
376 KB |
Output is correct |
| 11 |
Correct |
5 ms |
376 KB |
Output is correct |
| 12 |
Correct |
5 ms |
376 KB |
Output is correct |
| 13 |
Correct |
5 ms |
376 KB |
Output is correct |
| 14 |
Correct |
5 ms |
376 KB |
Output is correct |
| 15 |
Correct |
5 ms |
376 KB |
Output is correct |
| 16 |
Correct |
5 ms |
376 KB |
Output is correct |
| 17 |
Correct |
5 ms |
376 KB |
Output is correct |
| 18 |
Correct |
5 ms |
376 KB |
Output is correct |
| 19 |
Correct |
5 ms |
376 KB |
Output is correct |
| 20 |
Correct |
5 ms |
376 KB |
Output is correct |
| 21 |
Correct |
5 ms |
376 KB |
Output is correct |
| 22 |
Correct |
5 ms |
376 KB |
Output is correct |
| 23 |
Correct |
5 ms |
376 KB |
Output is correct |
| 24 |
Correct |
5 ms |
376 KB |
Output is correct |
| 25 |
Correct |
5 ms |
376 KB |
Output is correct |
| 26 |
Correct |
5 ms |
380 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
376 KB |
Output is correct |
| 2 |
Correct |
5 ms |
376 KB |
Output is correct |
| 3 |
Correct |
5 ms |
376 KB |
Output is correct |
| 4 |
Correct |
5 ms |
376 KB |
Output is correct |
| 5 |
Correct |
5 ms |
376 KB |
Output is correct |
| 6 |
Correct |
5 ms |
376 KB |
Output is correct |
| 7 |
Correct |
5 ms |
376 KB |
Output is correct |
| 8 |
Correct |
5 ms |
376 KB |
Output is correct |
| 9 |
Correct |
5 ms |
376 KB |
Output is correct |
| 10 |
Correct |
5 ms |
376 KB |
Output is correct |
| 11 |
Correct |
5 ms |
376 KB |
Output is correct |
| 12 |
Correct |
5 ms |
376 KB |
Output is correct |
| 13 |
Correct |
5 ms |
376 KB |
Output is correct |
| 14 |
Correct |
5 ms |
376 KB |
Output is correct |
| 15 |
Correct |
5 ms |
376 KB |
Output is correct |
| 16 |
Correct |
5 ms |
376 KB |
Output is correct |
| 17 |
Correct |
5 ms |
376 KB |
Output is correct |
| 18 |
Correct |
5 ms |
376 KB |
Output is correct |
| 19 |
Correct |
5 ms |
376 KB |
Output is correct |
| 20 |
Correct |
5 ms |
376 KB |
Output is correct |
| 21 |
Correct |
5 ms |
376 KB |
Output is correct |
| 22 |
Correct |
5 ms |
376 KB |
Output is correct |
| 23 |
Correct |
5 ms |
376 KB |
Output is correct |
| 24 |
Correct |
5 ms |
376 KB |
Output is correct |
| 25 |
Correct |
5 ms |
376 KB |
Output is correct |
| 26 |
Correct |
5 ms |
380 KB |
Output is correct |
| 27 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 28 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 29 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 30 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 31 |
Correct |
10 ms |
1016 KB |
Output is correct |
| 32 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 33 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 34 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 35 |
Correct |
7 ms |
1016 KB |
Output is correct |
| 36 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 37 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 38 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 39 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 40 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 41 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 42 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 43 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 44 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 45 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 46 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 47 |
Correct |
7 ms |
1016 KB |
Output is correct |
| 48 |
Correct |
9 ms |
1016 KB |
Output is correct |
| 49 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 50 |
Correct |
8 ms |
992 KB |
Output is correct |
| 51 |
Correct |
8 ms |
1016 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
376 KB |
Output is correct |
| 2 |
Correct |
5 ms |
376 KB |
Output is correct |
| 3 |
Correct |
5 ms |
376 KB |
Output is correct |
| 4 |
Correct |
5 ms |
376 KB |
Output is correct |
| 5 |
Correct |
5 ms |
376 KB |
Output is correct |
| 6 |
Correct |
5 ms |
376 KB |
Output is correct |
| 7 |
Correct |
5 ms |
376 KB |
Output is correct |
| 8 |
Correct |
5 ms |
376 KB |
Output is correct |
| 9 |
Correct |
5 ms |
376 KB |
Output is correct |
| 10 |
Correct |
5 ms |
376 KB |
Output is correct |
| 11 |
Correct |
5 ms |
376 KB |
Output is correct |
| 12 |
Correct |
5 ms |
376 KB |
Output is correct |
| 13 |
Correct |
5 ms |
376 KB |
Output is correct |
| 14 |
Correct |
5 ms |
376 KB |
Output is correct |
| 15 |
Correct |
5 ms |
376 KB |
Output is correct |
| 16 |
Correct |
5 ms |
376 KB |
Output is correct |
| 17 |
Correct |
5 ms |
376 KB |
Output is correct |
| 18 |
Correct |
5 ms |
376 KB |
Output is correct |
| 19 |
Correct |
5 ms |
376 KB |
Output is correct |
| 20 |
Correct |
5 ms |
376 KB |
Output is correct |
| 21 |
Correct |
5 ms |
376 KB |
Output is correct |
| 22 |
Correct |
5 ms |
376 KB |
Output is correct |
| 23 |
Correct |
5 ms |
376 KB |
Output is correct |
| 24 |
Correct |
5 ms |
376 KB |
Output is correct |
| 25 |
Correct |
5 ms |
376 KB |
Output is correct |
| 26 |
Correct |
5 ms |
380 KB |
Output is correct |
| 27 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 28 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 29 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 30 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 31 |
Correct |
10 ms |
1016 KB |
Output is correct |
| 32 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 33 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 34 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 35 |
Correct |
7 ms |
1016 KB |
Output is correct |
| 36 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 37 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 38 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 39 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 40 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 41 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 42 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 43 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 44 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 45 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 46 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 47 |
Correct |
7 ms |
1016 KB |
Output is correct |
| 48 |
Correct |
9 ms |
1016 KB |
Output is correct |
| 49 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 50 |
Correct |
8 ms |
992 KB |
Output is correct |
| 51 |
Correct |
8 ms |
1016 KB |
Output is correct |
| 52 |
Correct |
316 ms |
53820 KB |
Output is correct |
| 53 |
Correct |
308 ms |
53600 KB |
Output is correct |
| 54 |
Correct |
303 ms |
53624 KB |
Output is correct |
| 55 |
Correct |
310 ms |
53624 KB |
Output is correct |
| 56 |
Correct |
303 ms |
53752 KB |
Output is correct |
| 57 |
Correct |
318 ms |
53624 KB |
Output is correct |
| 58 |
Correct |
305 ms |
53624 KB |
Output is correct |
| 59 |
Correct |
311 ms |
53716 KB |
Output is correct |
| 60 |
Correct |
313 ms |
53640 KB |
Output is correct |
| 61 |
Correct |
309 ms |
53624 KB |
Output is correct |
| 62 |
Correct |
316 ms |
53700 KB |
Output is correct |
| 63 |
Correct |
309 ms |
53624 KB |
Output is correct |
| 64 |
Correct |
306 ms |
53748 KB |
Output is correct |
| 65 |
Correct |
310 ms |
53752 KB |
Output is correct |
| 66 |
Correct |
315 ms |
53592 KB |
Output is correct |
| 67 |
Correct |
313 ms |
53664 KB |
Output is correct |
| 68 |
Correct |
304 ms |
53624 KB |
Output is correct |
