/*
Author: ArifKraw
Rating: 1379
Goal#1: Beat I_Love_Trott ))))
Goal#2: Not to allow FractalFrog beat myself
*/
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define pf push_front
#define ppf pop_front
#define ppb pop_back
#define mp make_pair
#define ff first
#define ss second
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define ll long long
#define ld long double
#define nl '\n'
const ll N = 5e5 + 7;
const ll mod = 1e9 + 7;
const ll inf = 1e18;
const ld pi = 3.141592653589793;
const ld eps = 1e-12;
const ll zero = 0;
const int MAX = 1e6+5;
const int A = 1e9 + 5;
/*if you cant solve the problem:
try optimized(clever) brute-force;
try prefix sums with/or binary search
try dp
try dfs
try to solve in reversed orderr
try math
try to sort(sort(a+1,a+1+n)
int overflow, array bounds
think about special cases( n=1?)
*/
ll xx1[8]={0, 0,-1, 1, 1,-1, 1,-1};
ll xx2[8]={1,-1, 0, 0, 1, 1,-1,-1};
pair<ll,ll> a[N];
void egoist(){
ll n;
cin>>n;
for(int i=1;i<=n;i++){
cin>>a[i].ff>>a[i].ss;
}
sort(a+1,a+n+1);
ll mx=0;
ll val=0,pos2=0,val2=0;
for(int i=1;i<=n;i++){
val=a[i].ff;
val2-=a[i-1].ss;
pos2=i;
val2=a[pos2].ss;
while(pos2<i){
val2+=a[pos2+1].ss;
pos2++;
}
mx=max(val2+val-a[pos2].ff,mx);
while(pos2<n){
if(val+val2+a[pos2+1].ss-a[pos2+1].ff>=0){
mx=max(val2+val-a[pos2].ff,mx);
val2+=a[pos2+1].ss;
pos2++;
mx=max(val2+val-a[pos2].ff,mx);
}
else{
break;
}
}
mx=max(val2+val-a[pos2].ff,mx);
}
mx=max(val+val2-a[n].ff,mx);
cout<<mx;
}
int main(){
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
//freopen("sparse.in", "r", stdin);
//freopen("sparse.out", "w", stdout);
egoist();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
604 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
604 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
604 KB |
Output is correct |
28 |
Correct |
1 ms |
604 KB |
Output is correct |
29 |
Correct |
1 ms |
608 KB |
Output is correct |
30 |
Correct |
1 ms |
604 KB |
Output is correct |
31 |
Correct |
1 ms |
604 KB |
Output is correct |
32 |
Correct |
1 ms |
604 KB |
Output is correct |
33 |
Correct |
1 ms |
604 KB |
Output is correct |
34 |
Correct |
1 ms |
604 KB |
Output is correct |
35 |
Correct |
1 ms |
664 KB |
Output is correct |
36 |
Correct |
1 ms |
604 KB |
Output is correct |
37 |
Correct |
1 ms |
480 KB |
Output is correct |
38 |
Correct |
1 ms |
604 KB |
Output is correct |
39 |
Correct |
2 ms |
600 KB |
Output is correct |
40 |
Correct |
2 ms |
604 KB |
Output is correct |
41 |
Correct |
3 ms |
664 KB |
Output is correct |
42 |
Correct |
5 ms |
476 KB |
Output is correct |
43 |
Correct |
7 ms |
604 KB |
Output is correct |
44 |
Correct |
6 ms |
580 KB |
Output is correct |
45 |
Correct |
8 ms |
604 KB |
Output is correct |
46 |
Correct |
15 ms |
664 KB |
Output is correct |
47 |
Correct |
12 ms |
672 KB |
Output is correct |
48 |
Correct |
14 ms |
604 KB |
Output is correct |
49 |
Correct |
15 ms |
672 KB |
Output is correct |
50 |
Correct |
15 ms |
604 KB |
Output is correct |
51 |
Correct |
1 ms |
604 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
604 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
604 KB |
Output is correct |
28 |
Correct |
1 ms |
604 KB |
Output is correct |
29 |
Correct |
1 ms |
608 KB |
Output is correct |
30 |
Correct |
1 ms |
604 KB |
Output is correct |
31 |
Correct |
1 ms |
604 KB |
Output is correct |
32 |
Correct |
1 ms |
604 KB |
Output is correct |
33 |
Correct |
1 ms |
604 KB |
Output is correct |
34 |
Correct |
1 ms |
604 KB |
Output is correct |
35 |
Correct |
1 ms |
664 KB |
Output is correct |
36 |
Correct |
1 ms |
604 KB |
Output is correct |
37 |
Correct |
1 ms |
480 KB |
Output is correct |
38 |
Correct |
1 ms |
604 KB |
Output is correct |
39 |
Correct |
2 ms |
600 KB |
Output is correct |
40 |
Correct |
2 ms |
604 KB |
Output is correct |
41 |
Correct |
3 ms |
664 KB |
Output is correct |
42 |
Correct |
5 ms |
476 KB |
Output is correct |
43 |
Correct |
7 ms |
604 KB |
Output is correct |
44 |
Correct |
6 ms |
580 KB |
Output is correct |
45 |
Correct |
8 ms |
604 KB |
Output is correct |
46 |
Correct |
15 ms |
664 KB |
Output is correct |
47 |
Correct |
12 ms |
672 KB |
Output is correct |
48 |
Correct |
14 ms |
604 KB |
Output is correct |
49 |
Correct |
15 ms |
672 KB |
Output is correct |
50 |
Correct |
15 ms |
604 KB |
Output is correct |
51 |
Correct |
1 ms |
604 KB |
Output is correct |
52 |
Correct |
96 ms |
20816 KB |
Output is correct |
53 |
Correct |
99 ms |
20736 KB |
Output is correct |
54 |
Correct |
105 ms |
20708 KB |
Output is correct |
55 |
Correct |
153 ms |
20716 KB |
Output is correct |
56 |
Correct |
475 ms |
20904 KB |
Output is correct |
57 |
Correct |
549 ms |
20724 KB |
Output is correct |
58 |
Execution timed out |
1037 ms |
20824 KB |
Time limit exceeded |
59 |
Halted |
0 ms |
0 KB |
- |