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Submission #956098

# Submission time Handle Problem Language Result Execution time Memory
956098 2024-04-01T05:06:06 Z vjudge1 Bigger segments (IZhO19_segments) C++17
100 / 100
 115 ms 47188 KB 
#include <bits/stdc++.h>
#define gsn "Bigger segments"
#define ll long long
#define pii pair<int, ll>
#define gb(i, j) ((i >> j) & 1)
#define fi(i, a, b) for(int i = a; i <= b; i++)
#define fid(i, a, b) for(int i = a; i >= b; i--)

using namespace std;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
ll GetRandom(ll l, ll r)
{
    return uniform_int_distribution<ll> (l, r) (rng);
}

const int maxn = 500005;

int n;
ll a[maxn], s[maxn];
pii dp[maxn];

void solve()
{
    cin >> n;
    fi(i, 1, n) cin >> a[i], s[i] = s[i - 1] + a[i];

    multiset<pair<ll, pii>> se;
    pii ma = {1, s[0]};

    fi(i, 1, n)
    {
        dp[i] = {ma.first, s[i] - ma.second};
        se.insert({ dp[i].second + s[i], make_pair(dp[i].first + 1, s[i]) });

        while(se.size())
        {
            auto it = se.begin();
            if(it->first <= s[i + 1])
            {
                se.erase(it);
                ma = max(ma, it->second);
            }
            else break;
        }
    }

    cout << dp[n].first;
}


int main()
{
    if(fopen(gsn".inp", "r"))
    {
        freopen(gsn".inp", "r", stdin);
        freopen(gsn".out", "w", stdout);
    }

    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);

    int nTest = 1;
//    cin >> nTest;

    while(nTest --)
    {
        solve();
    }




    /// ------------------check time!-----------------///
    cerr << "\n" << "\nTime elapsed: " << 1000 * clock() / CLOCKS_PER_SEC << "ms\n";
    return 0;
}

Compilation message

segments.cpp: In function 'int main()':
segments.cpp:56:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   56 |         freopen(gsn".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
segments.cpp:57:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   57 |         freopen(gsn".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 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 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 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 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 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 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 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 2392 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2404 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 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 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 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 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 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 2392 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2404 KB Output is correct
31 Correct 2 ms 2660 KB Output is correct
32 Correct 1 ms 2404 KB Output is correct
33 Correct 1 ms 2404 KB Output is correct
34 Correct 1 ms 2660 KB Output is correct
35 Correct 1 ms 2400 KB Output is correct
36 Correct 1 ms 2404 KB Output is correct
37 Correct 1 ms 2400 KB Output is correct
38 Correct 1 ms 2408 KB Output is correct
39 Correct 1 ms 2408 KB Output is correct
40 Correct 1 ms 2408 KB Output is correct
41 Correct 1 ms 2396 KB Output is correct
42 Correct 1 ms 2652 KB Output is correct
43 Correct 1 ms 2396 KB Output is correct
44 Correct 1 ms 2392 KB Output is correct
45 Correct 1 ms 2396 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 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 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 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 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 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 2392 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2404 KB Output is correct
31 Correct 2 ms 2660 KB Output is correct
32 Correct 1 ms 2404 KB Output is correct
33 Correct 1 ms 2404 KB Output is correct
34 Correct 1 ms 2660 KB Output is correct
35 Correct 1 ms 2400 KB Output is correct
36 Correct 1 ms 2404 KB Output is correct
37 Correct 1 ms 2400 KB Output is correct
38 Correct 1 ms 2408 KB Output is correct
39 Correct 1 ms 2408 KB Output is correct
40 Correct 1 ms 2408 KB Output is correct
41 Correct 1 ms 2396 KB Output is correct
42 Correct 1 ms 2652 KB Output is correct
43 Correct 1 ms 2396 KB Output is correct
44 Correct 1 ms 2392 KB Output is correct
45 Correct 1 ms 2396 KB Output is correct
46 Correct 27 ms 15680 KB Output is correct
47 Correct 16 ms 9820 KB Output is correct
48 Correct 14 ms 9564 KB Output is correct
49 Correct 15 ms 9792 KB Output is correct
50 Correct 12 ms 9308 KB Output is correct
51 Correct 19 ms 9356 KB Output is correct
52 Correct 8 ms 5152 KB Output is correct
53 Correct 5 ms 4956 KB Output is correct
54 Correct 14 ms 9428 KB Output is correct
55 Correct 15 ms 9308 KB Output is correct
56 Correct 10 ms 9192 KB Output is correct
57 Correct 14 ms 11868 KB Output is correct
58 Correct 13 ms 11248 KB Output is correct
59 Correct 9 ms 9308 KB Output is correct
60 Correct 12 ms 9308 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 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 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 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 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 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 2392 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2404 KB Output is correct
31 Correct 2 ms 2660 KB Output is correct
32 Correct 1 ms 2404 KB Output is correct
33 Correct 1 ms 2404 KB Output is correct
34 Correct 1 ms 2660 KB Output is correct
35 Correct 1 ms 2400 KB Output is correct
36 Correct 1 ms 2404 KB Output is correct
37 Correct 1 ms 2400 KB Output is correct
38 Correct 1 ms 2408 KB Output is correct
39 Correct 1 ms 2408 KB Output is correct
40 Correct 1 ms 2408 KB Output is correct
41 Correct 1 ms 2396 KB Output is correct
42 Correct 1 ms 2652 KB Output is correct
43 Correct 1 ms 2396 KB Output is correct
44 Correct 1 ms 2392 KB Output is correct
45 Correct 1 ms 2396 KB Output is correct
46 Correct 27 ms 15680 KB Output is correct
47 Correct 16 ms 9820 KB Output is correct
48 Correct 14 ms 9564 KB Output is correct
49 Correct 15 ms 9792 KB Output is correct
50 Correct 12 ms 9308 KB Output is correct
51 Correct 19 ms 9356 KB Output is correct
52 Correct 8 ms 5152 KB Output is correct
53 Correct 5 ms 4956 KB Output is correct
54 Correct 14 ms 9428 KB Output is correct
55 Correct 15 ms 9308 KB Output is correct
56 Correct 10 ms 9192 KB Output is correct
57 Correct 14 ms 11868 KB Output is correct
58 Correct 13 ms 11248 KB Output is correct
59 Correct 9 ms 9308 KB Output is correct
60 Correct 12 ms 9308 KB Output is correct
61 Correct 115 ms 47188 KB Output is correct
62 Correct 94 ms 31568 KB Output is correct
63 Correct 76 ms 21816 KB Output is correct
64 Correct 61 ms 15872 KB Output is correct
65 Correct 51 ms 15868 KB Output is correct
66 Correct 76 ms 15952 KB Output is correct
67 Correct 63 ms 13868 KB Output is correct
68 Correct 31 ms 11356 KB Output is correct
69 Correct 64 ms 15920 KB Output is correct
70 Correct 76 ms 15984 KB Output is correct
71 Correct 39 ms 15952 KB Output is correct
72 Correct 73 ms 28496 KB Output is correct
73 Correct 53 ms 20560 KB Output is correct
74 Correct 47 ms 15964 KB Output is correct
75 Correct 48 ms 16136 KB Output is correct