Submission #1079956

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1079956	2024-08-29T04:56:25 Z	_rain_	Art Exhibition (JOI18_art)	C++14	100 / 100	152 ms	28724 KB

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define fixbug true

void SETIO(string name = ""){
    if (name=="") return;
    freopen((name+".inp").c_str(),"r",stdin);
//    freopen((name+".out").c_str(),"w",stdout);
    return;
}

const int maxn = 500000;
const ll INF = (ll)1e18;
#define fi first
#define se second
pair<ll,ll> a[maxn+2] ;
ll pre[maxn+2] , f[maxn+2];
int n;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    SETIO("");

    cin >> n;
    for (int i = 1; i<= n; ++i) cin >> a[i].fi >> a[i].se;
    sort(a+1,a+n+1);
    for (int i = 1; i <= n; ++i) pre[i] = pre[i - 1] + a[i].se ;
    f[0] = -INF;
    ll ans = 0;
    for (int i = 1; i <= n; ++i){
        f[i] = max(f[i - 1] , -pre[i-1] + a[i].fi);
        ans = max(ans , pre[i] + f[i] - a[i].fi);

    }
    cout << ans;
}

Compilation message

art.cpp: In function 'void SETIO(std::string)':
art.cpp:8:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |     freopen((name+".inp").c_str(),"r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2392 KB	Output is correct
4	Correct	0 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2396 KB	Output is correct

Subtask #2
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2392 KB	Output is correct
4	Correct	0 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2396 KB	Output is correct
12	Correct	0 ms	2396 KB	Output is correct
13	Correct	1 ms	2392 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	1 ms	2396 KB	Output is correct
17	Correct	0 ms	2396 KB	Output is correct
18	Correct	0 ms	2396 KB	Output is correct
19	Correct	0 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	1 ms	2396 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2396 KB	Output is correct
24	Correct	1 ms	2396 KB	Output is correct
25	Correct	1 ms	2392 KB	Output is correct
26	Correct	1 ms	2396 KB	Output is correct

Subtask #3
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2392 KB	Output is correct
4	Correct	0 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2396 KB	Output is correct
12	Correct	0 ms	2396 KB	Output is correct
13	Correct	1 ms	2392 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	1 ms	2396 KB	Output is correct
17	Correct	0 ms	2396 KB	Output is correct
18	Correct	0 ms	2396 KB	Output is correct
19	Correct	0 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	1 ms	2396 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2396 KB	Output is correct
24	Correct	1 ms	2396 KB	Output is correct
25	Correct	1 ms	2392 KB	Output is correct
26	Correct	1 ms	2396 KB	Output is correct
27	Correct	2 ms	2648 KB	Output is correct
28	Correct	2 ms	2652 KB	Output is correct
29	Correct	2 ms	2652 KB	Output is correct
30	Correct	2 ms	2652 KB	Output is correct
31	Correct	2 ms	2652 KB	Output is correct
32	Correct	2 ms	2652 KB	Output is correct
33	Correct	2 ms	2520 KB	Output is correct
34	Correct	2 ms	2652 KB	Output is correct
35	Correct	2 ms	2652 KB	Output is correct
36	Correct	2 ms	2648 KB	Output is correct
37	Correct	2 ms	2652 KB	Output is correct
38	Correct	2 ms	2568 KB	Output is correct
39	Correct	2 ms	2644 KB	Output is correct
40	Correct	2 ms	2632 KB	Output is correct
41	Correct	2 ms	2648 KB	Output is correct
42	Correct	2 ms	2648 KB	Output is correct
43	Correct	2 ms	2648 KB	Output is correct
44	Correct	2 ms	2652 KB	Output is correct
45	Correct	2 ms	2652 KB	Output is correct
46	Correct	2 ms	2644 KB	Output is correct
47	Correct	2 ms	2652 KB	Output is correct
48	Correct	2 ms	2904 KB	Output is correct
49	Correct	2 ms	2628 KB	Output is correct
50	Correct	2 ms	2652 KB	Output is correct
51	Correct	2 ms	2652 KB	Output is correct

Subtask #4
50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2392 KB	Output is correct
4	Correct	0 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2396 KB	Output is correct
12	Correct	0 ms	2396 KB	Output is correct
13	Correct	1 ms	2392 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	1 ms	2396 KB	Output is correct
17	Correct	0 ms	2396 KB	Output is correct
18	Correct	0 ms	2396 KB	Output is correct
19	Correct	0 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	1 ms	2396 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2396 KB	Output is correct
24	Correct	1 ms	2396 KB	Output is correct
25	Correct	1 ms	2392 KB	Output is correct
26	Correct	1 ms	2396 KB	Output is correct
27	Correct	2 ms	2648 KB	Output is correct
28	Correct	2 ms	2652 KB	Output is correct
29	Correct	2 ms	2652 KB	Output is correct
30	Correct	2 ms	2652 KB	Output is correct
31	Correct	2 ms	2652 KB	Output is correct
32	Correct	2 ms	2652 KB	Output is correct
33	Correct	2 ms	2520 KB	Output is correct
34	Correct	2 ms	2652 KB	Output is correct
35	Correct	2 ms	2652 KB	Output is correct
36	Correct	2 ms	2648 KB	Output is correct
37	Correct	2 ms	2652 KB	Output is correct
38	Correct	2 ms	2568 KB	Output is correct
39	Correct	2 ms	2644 KB	Output is correct
40	Correct	2 ms	2632 KB	Output is correct
41	Correct	2 ms	2648 KB	Output is correct
42	Correct	2 ms	2648 KB	Output is correct
43	Correct	2 ms	2648 KB	Output is correct
44	Correct	2 ms	2652 KB	Output is correct
45	Correct	2 ms	2652 KB	Output is correct
46	Correct	2 ms	2644 KB	Output is correct
47	Correct	2 ms	2652 KB	Output is correct
48	Correct	2 ms	2904 KB	Output is correct
49	Correct	2 ms	2628 KB	Output is correct
50	Correct	2 ms	2652 KB	Output is correct
51	Correct	2 ms	2652 KB	Output is correct
52	Correct	152 ms	28472 KB	Output is correct
53	Correct	122 ms	28496 KB	Output is correct
54	Correct	125 ms	28496 KB	Output is correct
55	Correct	126 ms	28604 KB	Output is correct
56	Correct	119 ms	28496 KB	Output is correct
57	Correct	127 ms	28496 KB	Output is correct
58	Correct	115 ms	28724 KB	Output is correct
59	Correct	122 ms	28548 KB	Output is correct
60	Correct	115 ms	28600 KB	Output is correct
61	Correct	122 ms	28456 KB	Output is correct
62	Correct	131 ms	28608 KB	Output is correct
63	Correct	123 ms	28616 KB	Output is correct
64	Correct	123 ms	28496 KB	Output is correct
65	Correct	125 ms	28656 KB	Output is correct
66	Correct	122 ms	28720 KB	Output is correct
67	Correct	122 ms	28496 KB	Output is correct
68	Correct	119 ms	28496 KB	Output is correct

Submission #1079956

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 20.0 / 20.0

Subtask #3 20.0 / 20.0

Subtask #4 50.0 / 50.0

Subtask #1
10.0 / 10.0

Subtask #2
20.0 / 20.0

Subtask #3
20.0 / 20.0

Subtask #4
50.0 / 50.0