#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define FOR(i, a, b) for(int i = (a); i <= (b); i++)
#define FORD(i, b, a) for(int i = (b); i >= (a); i--)
#define pa pair<ll, ll>
#define fi first
#define se second
#define bit(mask, j) (mask & (1<<j))
const ll mod = 1e9 + 7;
const ll INF = 1e17;
const ll N = 5e5 + 10;
pa a[N];
ll s[N], dmax[N], dd[N], ans = 0;
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);cout.tie(0);
#define NAME "hbmt"
if(fopen(NAME".inp", "r")) {
freopen(NAME".inp", "r", stdin);
freopen(NAME".out", "w", stdout);
}
ll n;
cin >> n;
FOR(i, 1, n)
{
cin >> a[i].fi >> a[i].se;
}
sort(a + 1, a + n + 1);
FORD(i, n, 1)
{
s[i] = s[i + 1] + a[i].se;
dmax[i] = s[i] + a[i].fi;
}
FOR(i, 1, n)
{
dd[i] = max(dd[i - 1], dmax[i]);
}
FOR(i, 1, n)
{
ans = max(ans, dd[i] - a[i].fi - s[i + 1]);
}
cout << ans;
return 0;
}
Compilation message
art.cpp: In function 'int main()':
art.cpp:21:20: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
21 | freopen(NAME".inp", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
art.cpp:22:20: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
22 | freopen(NAME".out", "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4432 KB |
Output is correct |
2 |
Correct |
1 ms |
4432 KB |
Output is correct |
3 |
Correct |
1 ms |
4572 KB |
Output is correct |
4 |
Correct |
1 ms |
4432 KB |
Output is correct |
5 |
Correct |
1 ms |
4432 KB |
Output is correct |
6 |
Correct |
1 ms |
4432 KB |
Output is correct |
7 |
Correct |
1 ms |
4432 KB |
Output is correct |
8 |
Correct |
1 ms |
4600 KB |
Output is correct |
9 |
Correct |
1 ms |
4432 KB |
Output is correct |
10 |
Correct |
1 ms |
4432 KB |
Output is correct |
11 |
Correct |
1 ms |
4432 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4432 KB |
Output is correct |
2 |
Correct |
1 ms |
4432 KB |
Output is correct |
3 |
Correct |
1 ms |
4572 KB |
Output is correct |
4 |
Correct |
1 ms |
4432 KB |
Output is correct |
5 |
Correct |
1 ms |
4432 KB |
Output is correct |
6 |
Correct |
1 ms |
4432 KB |
Output is correct |
7 |
Correct |
1 ms |
4432 KB |
Output is correct |
8 |
Correct |
1 ms |
4600 KB |
Output is correct |
9 |
Correct |
1 ms |
4432 KB |
Output is correct |
10 |
Correct |
1 ms |
4432 KB |
Output is correct |
11 |
Correct |
1 ms |
4432 KB |
Output is correct |
12 |
Correct |
1 ms |
4432 KB |
Output is correct |
13 |
Correct |
1 ms |
4432 KB |
Output is correct |
14 |
Correct |
1 ms |
4432 KB |
Output is correct |
15 |
Correct |
1 ms |
4448 KB |
Output is correct |
16 |
Correct |
1 ms |
4432 KB |
Output is correct |
17 |
Correct |
1 ms |
4432 KB |
Output is correct |
18 |
Correct |
1 ms |
4432 KB |
Output is correct |
19 |
Correct |
1 ms |
4432 KB |
Output is correct |
20 |
Correct |
1 ms |
4432 KB |
Output is correct |
21 |
Correct |
2 ms |
4432 KB |
Output is correct |
22 |
Correct |
1 ms |
4432 KB |
Output is correct |
23 |
Correct |
1 ms |
4432 KB |
Output is correct |
24 |
Correct |
1 ms |
4432 KB |
Output is correct |
25 |
Correct |
1 ms |
4432 KB |
Output is correct |
26 |
Correct |
1 ms |
4432 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4432 KB |
Output is correct |
2 |
Correct |
1 ms |
4432 KB |
Output is correct |
3 |
Correct |
1 ms |
4572 KB |
Output is correct |
4 |
Correct |
1 ms |
4432 KB |
Output is correct |
5 |
Correct |
1 ms |
4432 KB |
Output is correct |
6 |
Correct |
1 ms |
4432 KB |
Output is correct |
7 |
Correct |
1 ms |
4432 KB |
Output is correct |
8 |
Correct |
1 ms |
4600 KB |
Output is correct |
9 |
Correct |
1 ms |
4432 KB |
Output is correct |
10 |
Correct |
1 ms |
4432 KB |
Output is correct |
11 |
Correct |
1 ms |
4432 KB |
Output is correct |
12 |
Correct |
1 ms |
4432 KB |
Output is correct |
13 |
Correct |
1 ms |
4432 KB |
Output is correct |
14 |
Correct |
1 ms |
4432 KB |
Output is correct |
15 |
Correct |
1 ms |
4448 KB |
Output is correct |
16 |
Correct |
1 ms |
4432 KB |
Output is correct |
17 |
Correct |
1 ms |
4432 KB |
Output is correct |
18 |
Correct |
1 ms |
4432 KB |
Output is correct |
19 |
Correct |
1 ms |
4432 KB |
Output is correct |
20 |
Correct |
1 ms |
4432 KB |
Output is correct |
21 |
Correct |
2 ms |
4432 KB |
Output is correct |
22 |
Correct |
1 ms |
4432 KB |
Output is correct |
23 |
Correct |
1 ms |
4432 KB |
Output is correct |
24 |
Correct |
1 ms |
4432 KB |
Output is correct |
25 |
Correct |
1 ms |
4432 KB |
Output is correct |
26 |
Correct |
1 ms |
4432 KB |
Output is correct |
27 |
Correct |
2 ms |
4432 KB |
Output is correct |
28 |
Correct |
2 ms |
4432 KB |
Output is correct |
29 |
Correct |
2 ms |
4432 KB |
Output is correct |
30 |
Correct |
2 ms |
4432 KB |
Output is correct |
31 |
Correct |
2 ms |
4568 KB |
Output is correct |
32 |
Correct |
2 ms |
4432 KB |
Output is correct |
33 |
Correct |
2 ms |
4432 KB |
Output is correct |
34 |
Correct |
2 ms |
4432 KB |
Output is correct |
35 |
Correct |
2 ms |
4432 KB |
Output is correct |
36 |
Correct |
2 ms |
4432 KB |
Output is correct |
37 |
Correct |
2 ms |
4432 KB |
Output is correct |
38 |
Correct |
2 ms |
4432 KB |
Output is correct |
39 |
Correct |
3 ms |
4432 KB |
Output is correct |
40 |
Correct |
2 ms |
4444 KB |
Output is correct |
41 |
Correct |
2 ms |
4432 KB |
Output is correct |
42 |
Correct |
2 ms |
4432 KB |
Output is correct |
43 |
Correct |
2 ms |
4432 KB |
Output is correct |
44 |
Correct |
2 ms |
4432 KB |
Output is correct |
45 |
Correct |
2 ms |
4600 KB |
Output is correct |
46 |
Correct |
2 ms |
4432 KB |
Output is correct |
47 |
Correct |
2 ms |
4604 KB |
Output is correct |
48 |
Correct |
2 ms |
4432 KB |
Output is correct |
49 |
Correct |
2 ms |
4432 KB |
Output is correct |
50 |
Correct |
2 ms |
4432 KB |
Output is correct |
51 |
Correct |
3 ms |
4432 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4432 KB |
Output is correct |
2 |
Correct |
1 ms |
4432 KB |
Output is correct |
3 |
Correct |
1 ms |
4572 KB |
Output is correct |
4 |
Correct |
1 ms |
4432 KB |
Output is correct |
5 |
Correct |
1 ms |
4432 KB |
Output is correct |
6 |
Correct |
1 ms |
4432 KB |
Output is correct |
7 |
Correct |
1 ms |
4432 KB |
Output is correct |
8 |
Correct |
1 ms |
4600 KB |
Output is correct |
9 |
Correct |
1 ms |
4432 KB |
Output is correct |
10 |
Correct |
1 ms |
4432 KB |
Output is correct |
11 |
Correct |
1 ms |
4432 KB |
Output is correct |
12 |
Correct |
1 ms |
4432 KB |
Output is correct |
13 |
Correct |
1 ms |
4432 KB |
Output is correct |
14 |
Correct |
1 ms |
4432 KB |
Output is correct |
15 |
Correct |
1 ms |
4448 KB |
Output is correct |
16 |
Correct |
1 ms |
4432 KB |
Output is correct |
17 |
Correct |
1 ms |
4432 KB |
Output is correct |
18 |
Correct |
1 ms |
4432 KB |
Output is correct |
19 |
Correct |
1 ms |
4432 KB |
Output is correct |
20 |
Correct |
1 ms |
4432 KB |
Output is correct |
21 |
Correct |
2 ms |
4432 KB |
Output is correct |
22 |
Correct |
1 ms |
4432 KB |
Output is correct |
23 |
Correct |
1 ms |
4432 KB |
Output is correct |
24 |
Correct |
1 ms |
4432 KB |
Output is correct |
25 |
Correct |
1 ms |
4432 KB |
Output is correct |
26 |
Correct |
1 ms |
4432 KB |
Output is correct |
27 |
Correct |
2 ms |
4432 KB |
Output is correct |
28 |
Correct |
2 ms |
4432 KB |
Output is correct |
29 |
Correct |
2 ms |
4432 KB |
Output is correct |
30 |
Correct |
2 ms |
4432 KB |
Output is correct |
31 |
Correct |
2 ms |
4568 KB |
Output is correct |
32 |
Correct |
2 ms |
4432 KB |
Output is correct |
33 |
Correct |
2 ms |
4432 KB |
Output is correct |
34 |
Correct |
2 ms |
4432 KB |
Output is correct |
35 |
Correct |
2 ms |
4432 KB |
Output is correct |
36 |
Correct |
2 ms |
4432 KB |
Output is correct |
37 |
Correct |
2 ms |
4432 KB |
Output is correct |
38 |
Correct |
2 ms |
4432 KB |
Output is correct |
39 |
Correct |
3 ms |
4432 KB |
Output is correct |
40 |
Correct |
2 ms |
4444 KB |
Output is correct |
41 |
Correct |
2 ms |
4432 KB |
Output is correct |
42 |
Correct |
2 ms |
4432 KB |
Output is correct |
43 |
Correct |
2 ms |
4432 KB |
Output is correct |
44 |
Correct |
2 ms |
4432 KB |
Output is correct |
45 |
Correct |
2 ms |
4600 KB |
Output is correct |
46 |
Correct |
2 ms |
4432 KB |
Output is correct |
47 |
Correct |
2 ms |
4604 KB |
Output is correct |
48 |
Correct |
2 ms |
4432 KB |
Output is correct |
49 |
Correct |
2 ms |
4432 KB |
Output is correct |
50 |
Correct |
2 ms |
4432 KB |
Output is correct |
51 |
Correct |
3 ms |
4432 KB |
Output is correct |
52 |
Correct |
125 ms |
19784 KB |
Output is correct |
53 |
Correct |
135 ms |
19784 KB |
Output is correct |
54 |
Correct |
124 ms |
19784 KB |
Output is correct |
55 |
Correct |
123 ms |
19824 KB |
Output is correct |
56 |
Correct |
123 ms |
19784 KB |
Output is correct |
57 |
Correct |
118 ms |
19784 KB |
Output is correct |
58 |
Correct |
119 ms |
19924 KB |
Output is correct |
59 |
Correct |
135 ms |
19920 KB |
Output is correct |
60 |
Correct |
127 ms |
19928 KB |
Output is correct |
61 |
Correct |
124 ms |
19924 KB |
Output is correct |
62 |
Correct |
127 ms |
20040 KB |
Output is correct |
63 |
Correct |
145 ms |
19788 KB |
Output is correct |
64 |
Correct |
121 ms |
19928 KB |
Output is correct |
65 |
Correct |
119 ms |
19784 KB |
Output is correct |
66 |
Correct |
118 ms |
19784 KB |
Output is correct |
67 |
Correct |
118 ms |
19920 KB |
Output is correct |
68 |
Correct |
120 ms |
19928 KB |
Output is correct |