oj.uz

Submission #91741

# Submission time Handle Problem Language Result Execution time Memory
91741 2018-12-29T18:32:32 Z Mercenary Hacker (BOI15_hac) C++14
100 / 100
 72 ms 15608 KB 
#include<bits/stdc++.h>

using namespace std;
#define taskname "TEST"
#define pb	push_back
typedef long double ld;
typedef long long ll;
const int maxn = 2e6 + 5;

int n , a[maxn] , len , b[maxn];

void enter()
{
    cin >> n;
    for(int i = 1 ; i <= n ; ++i)
    {
        cin >> a[i];
        a[i + n] = a[i + n + n] = a[i];
    }
    len = n / 2 + n % 2;
    int sum = 0;
    for(int i = 1 ; i <= 3 * n ; ++i)
    {
        sum += a[i];
        if(i > len)sum -= a[i - len];
        b[i] = sum;
//        cout << b[i] << endl;
    }
}

void solve()
{
    int res = 0;
    deque<int> d;
    for(int i = 1 ; i <= n * 3 ; ++i)
    {
        while(!d.empty() && b[d.back()] >= b[i])d.pop_back();
        d.push_back(i);
        if(d.front() + len <= i)d.pop_front();
        res = max(res , b[d.front()]);
    }
    cout << res;
}

int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	if(fopen(taskname".INP","r"))
        freopen(taskname".INP", "r",stdin) ,
        freopen(taskname".OUT", "w",stdout);
    enter();solve();
}

Compilation message

hac.cpp: In function 'int main()':
hac.cpp:50:44: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen(taskname".INP", "r",stdin) ,
         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~
         freopen(taskname".OUT", "w",stdout);
         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
hac.cpp:50:44: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]

Subtask #1
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 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 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

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 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 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 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 504 KB Output is correct
24 Correct 2 ms 504 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 2 ms 504 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 504 KB Output is correct
31 Correct 2 ms 504 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 504 KB Output is correct
4 Correct 13 ms 2808 KB Output is correct
5 Correct 28 ms 6264 KB Output is correct
6 Correct 37 ms 7928 KB Output is correct
7 Correct 44 ms 9464 KB Output is correct
8 Correct 71 ms 15376 KB Output is correct

Subtask #4
40.0 / 40.0

# 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 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 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 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 504 KB Output is correct
24 Correct 2 ms 504 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 2 ms 504 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 504 KB Output is correct
31 Correct 2 ms 504 KB Output is correct
32 Correct 2 ms 504 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 3 ms 504 KB Output is correct
35 Correct 13 ms 2808 KB Output is correct
36 Correct 28 ms 6264 KB Output is correct
37 Correct 37 ms 7928 KB Output is correct
38 Correct 44 ms 9464 KB Output is correct
39 Correct 71 ms 15376 KB Output is correct
40 Correct 3 ms 760 KB Output is correct
41 Correct 4 ms 888 KB Output is correct
42 Correct 6 ms 1272 KB Output is correct
43 Correct 30 ms 6324 KB Output is correct
44 Correct 72 ms 15312 KB Output is correct
45 Correct 15 ms 3320 KB Output is correct
46 Correct 43 ms 9464 KB Output is correct
47 Correct 71 ms 15352 KB Output is correct
48 Correct 55 ms 15608 KB Output is correct
49 Correct 61 ms 14712 KB Output is correct
50 Correct 53 ms 14760 KB Output is correct