oj.uz

Submission #105963

# Submission time Handle Problem Language Result Execution time Memory
105963 2019-04-16T02:54:19 Z xiaowuc1 Hacker (BOI15_hac) C++14
100 / 100
 672 ms 18396 KB 
#include <algorithm>
#include <cassert>
#include <cstring>
#include <iomanip>
#include <iostream>
#include <map>
#include <queue>
#include <random>
#include <set>
#include <vector>

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<int, pii> pipii;
typedef vector<vector<ll>> matrix;

int l[1000000];
int maxV[1000000];

void solve() {
	int n;
	cin >> n;
	for(int i = 0; i < n; i++) {
		cin >> l[i];
	}
	int sz = (n+1)/2;
	int curr = 0;
	for(int i = 0; true; i++) {
		curr += l[i%n];
		if(i >= sz) {
			curr -= l[i-sz];
		}
		if(maxV[i%n]) break;
		if(i >= sz-1) {
			maxV[i%n] = curr;
		}
	}
	int ret = 0;
	multiset<int> all;
	for(int i = 0; true; i++) {
		if(i > sz-1 && i%n == sz-1) break;
		all.insert(maxV[i%n]);
		if(i >= sz) {
			auto x = all.find(maxV[(i-sz)]);
			all.erase(x);
		}
		if(all.size() == sz) {
			ret = max(ret, *all.begin());
		}
	}
	cout << ret << endl;
}

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL); cout.tie(NULL);
	/*
  int t;
  cin >> t;
  for(int i = 1; i <= t; i++) {
    cout << "Case #" << i << ": ";
    solve();
  }
	*/
	solve();
}

Compilation message

hac.cpp: In function 'void solve()':
hac.cpp:49:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if(all.size() == sz) {
      ~~~~~~~~~~~^~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 3 ms 384 KB Output is correct
17 Correct 3 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 3 ms 384 KB Output is correct
17 Correct 3 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 3 ms 384 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 4 ms 512 KB Output is correct
23 Correct 5 ms 512 KB Output is correct
24 Correct 5 ms 512 KB Output is correct
25 Correct 6 ms 512 KB Output is correct
26 Correct 4 ms 512 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 3 ms 384 KB Output is correct
29 Correct 2 ms 384 KB Output is correct
30 Correct 4 ms 512 KB Output is correct
31 Correct 4 ms 512 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 5 ms 512 KB Output is correct
4 Correct 50 ms 2816 KB Output is correct
5 Correct 178 ms 6748 KB Output is correct
6 Correct 298 ms 8188 KB Output is correct
7 Correct 257 ms 9848 KB Output is correct
8 Correct 672 ms 16012 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 3 ms 384 KB Output is correct
17 Correct 3 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 3 ms 384 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 4 ms 512 KB Output is correct
23 Correct 5 ms 512 KB Output is correct
24 Correct 5 ms 512 KB Output is correct
25 Correct 6 ms 512 KB Output is correct
26 Correct 4 ms 512 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 3 ms 384 KB Output is correct
29 Correct 2 ms 384 KB Output is correct
30 Correct 4 ms 512 KB Output is correct
31 Correct 4 ms 512 KB Output is correct
32 Correct 3 ms 384 KB Output is correct
33 Correct 3 ms 384 KB Output is correct
34 Correct 5 ms 512 KB Output is correct
35 Correct 50 ms 2816 KB Output is correct
36 Correct 178 ms 6748 KB Output is correct
37 Correct 298 ms 8188 KB Output is correct
38 Correct 257 ms 9848 KB Output is correct
39 Correct 672 ms 16012 KB Output is correct
40 Correct 8 ms 768 KB Output is correct
41 Correct 17 ms 1152 KB Output is correct
42 Correct 20 ms 1416 KB Output is correct
43 Correct 200 ms 7672 KB Output is correct
44 Correct 600 ms 18172 KB Output is correct
45 Correct 76 ms 3832 KB Output is correct
46 Correct 277 ms 11228 KB Output is correct
47 Correct 635 ms 18256 KB Output is correct
48 Correct 324 ms 18396 KB Output is correct
49 Correct 281 ms 17692 KB Output is correct
50 Correct 285 ms 17656 KB Output is correct