oj.uz

Submission #122748

# Submission time Handle Problem Language Result Execution time Memory
122748 2019-06-29T08:30:11 Z arnold518 Art Exhibition (JOI18_art) C++14
100 / 100
 274 ms 26848 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 5e5;

struct Art
{
    ll a, b, d;
};

int n;
Art arr[MAXN+10];
ll ans;

int main()
{
    int i, j;

    scanf("%d", &n);
    for(i=1; i<=n; i++) scanf("%lld%lld", &arr[i].a, &arr[i].b);

    sort(arr+1, arr+n+1, [&](Art p, Art q) { return p.a<q.a; });
    for(i=1; i<=n; i++) arr[i].b+=arr[i-1].b, arr[i].d=arr[i].b-arr[i].a;

    vector<int> S;
    for(i=n; i>=1; i--)
    {
        if(S.empty() || arr[S.back()].d<arr[i].d) S.push_back(i);
    }

    for(i=1; i<=n; i++)
    {
        ans=max(ans, arr[i].a+arr[S.back()].d-arr[i-1].b);
        if(S.back()==i) S.pop_back();
    }
    printf("%lld", ans);
}

Compilation message

art.cpp: In function 'int main()':
art.cpp:21:12: warning: unused variable 'j' [-Wunused-variable]
     int i, j;
            ^
art.cpp:23:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
art.cpp:24:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(i=1; i<=n; i++) scanf("%lld%lld", &arr[i].a, &arr[i].b);
                         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 248 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 248 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 504 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 380 KB Output is correct
26 Correct 2 ms 376 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 248 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 504 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 380 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 4 ms 632 KB Output is correct
28 Correct 4 ms 632 KB Output is correct
29 Correct 4 ms 632 KB Output is correct
30 Correct 4 ms 632 KB Output is correct
31 Correct 4 ms 652 KB Output is correct
32 Correct 4 ms 632 KB Output is correct
33 Correct 4 ms 504 KB Output is correct
34 Correct 4 ms 504 KB Output is correct
35 Correct 4 ms 632 KB Output is correct
36 Correct 4 ms 632 KB Output is correct
37 Correct 4 ms 504 KB Output is correct
38 Correct 4 ms 504 KB Output is correct
39 Correct 4 ms 632 KB Output is correct
40 Correct 4 ms 632 KB Output is correct
41 Correct 4 ms 632 KB Output is correct
42 Correct 4 ms 632 KB Output is correct
43 Correct 4 ms 632 KB Output is correct
44 Correct 4 ms 632 KB Output is correct
45 Correct 4 ms 632 KB Output is correct
46 Correct 4 ms 632 KB Output is correct
47 Correct 4 ms 632 KB Output is correct
48 Correct 4 ms 504 KB Output is correct
49 Correct 4 ms 632 KB Output is correct
50 Correct 4 ms 504 KB Output is correct
51 Correct 4 ms 632 KB Output is correct

Subtask #4
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 248 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 504 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 380 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 4 ms 632 KB Output is correct
28 Correct 4 ms 632 KB Output is correct
29 Correct 4 ms 632 KB Output is correct
30 Correct 4 ms 632 KB Output is correct
31 Correct 4 ms 652 KB Output is correct
32 Correct 4 ms 632 KB Output is correct
33 Correct 4 ms 504 KB Output is correct
34 Correct 4 ms 504 KB Output is correct
35 Correct 4 ms 632 KB Output is correct
36 Correct 4 ms 632 KB Output is correct
37 Correct 4 ms 504 KB Output is correct
38 Correct 4 ms 504 KB Output is correct
39 Correct 4 ms 632 KB Output is correct
40 Correct 4 ms 632 KB Output is correct
41 Correct 4 ms 632 KB Output is correct
42 Correct 4 ms 632 KB Output is correct
43 Correct 4 ms 632 KB Output is correct
44 Correct 4 ms 632 KB Output is correct
45 Correct 4 ms 632 KB Output is correct
46 Correct 4 ms 632 KB Output is correct
47 Correct 4 ms 632 KB Output is correct
48 Correct 4 ms 504 KB Output is correct
49 Correct 4 ms 632 KB Output is correct
50 Correct 4 ms 504 KB Output is correct
51 Correct 4 ms 632 KB Output is correct
52 Correct 266 ms 26848 KB Output is correct
53 Correct 262 ms 25940 KB Output is correct
54 Correct 258 ms 25032 KB Output is correct
55 Correct 256 ms 24824 KB Output is correct
56 Correct 254 ms 24696 KB Output is correct
57 Correct 258 ms 24804 KB Output is correct
58 Correct 259 ms 24724 KB Output is correct
59 Correct 257 ms 24720 KB Output is correct
60 Correct 253 ms 24736 KB Output is correct
61 Correct 256 ms 24568 KB Output is correct
62 Correct 256 ms 24680 KB Output is correct
63 Correct 256 ms 24772 KB Output is correct
64 Correct 257 ms 24728 KB Output is correct
65 Correct 256 ms 24624 KB Output is correct
66 Correct 274 ms 24708 KB Output is correct
67 Correct 256 ms 24696 KB Output is correct
68 Correct 251 ms 24696 KB Output is correct