oj.uz

Submission #853388

# Submission time Handle Problem Language Result Execution time Memory
853388 2023-09-24T09:14:47 Z taitruong270 Feast (NOI19_feast) C++17
100 / 100
 128 ms 17016 KB 
/*==============================================================================================================
         __                    __                                             _____     ______    _______
        |  |                  |  |                                           /  __ \   / _____|  / ______|     
      __|  |__              __|  |__                                         |_|  | |  | |       | |  
     |__|   __|            |__|   __|                                             | |  | |____   | |_____ 
        |  |    _____   _     |  |    ____  __  __  ____    _____    _____       / /   \ ___  \  |  ___  \
        |  |   /  _  \ | |    |  |   /  _/ | | | | /  _  \ /  __ \  /  _  \     / /         | |  | |   | |
        |  |_  | |_| | | |    |  |_  | |   | |_| | | |_| | | |  | | | |_| |    / /___   ____| |  | |___| |
        \____\ \____/| |_|    \____\ |_|   \_____/ \_____/ |_|  |_| \____ |   |______| |______/  \_______/
                                                                        | |
                                                                      __/ |
                                                                     |___/  
                                        Pratice, practice, and practice
                                       Where is the bug, delete it there
                                     Try, try, try again until you succeed
I hated every minute of training, but I said, 'Don't quit. Suffer now and live the rest of your life as a champion.' - Mohamed Ali 
                              You may not be the best, but must be the most effort
     Even the things and people you like, you don't have the courage to take, you are destined to be a failure.
                                           Difficult means more time
                                          Done is better than perfect
                                         Pain + Reflection = Progress 
==============================================================================================================*/
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ld long double
#define endl '\n'
const ll mod = 1e9+7;

ll n, k, a[300005];
pair<ll, ll> dp[300005][3];  //sum doan, cnt doan
ll l, r, ans;

bool check(ll m)
{
    dp[0][0]={0, 0};
    dp[0][1]={-1e18, 0};
    for (ll i=1; i<=n; i++)
    {
        dp[i][0]=max(dp[i-1][0], dp[i-1][1]);
        dp[i][1]=max(   make_pair(dp[i-1][1].first+a[i], dp[i-1][1].second),   //them a[i] vao doan truoc do
                        make_pair(dp[i-1][0].first+a[i]-m, dp[i-1][0].second+1));  // bat dau doan moi tai vi tri a[i]
    }
    return max(dp[n][0], dp[n][1]).second>=k;
}

void solve()
{
    cin>>n>>k;
    for (ll i=1; i<=n; i++) cin>>a[i];
    l=0, r=1e15;
    while (l<=r)
    {
        ld mid=(l+r)/2;
        if (check(mid)==true) ans=mid, l=mid+1;
        else r=mid-1;
    }
    check(ans);
    cout<<llround(max(dp[n][0], dp[n][1]).first+ans*k);
}

int main()
{
    ios_base::sync_with_stdio(false); cin.tie(NULL);
    clock_t start = clock();
    //#ifndef ONLINE_JUDGE
    //freopen("_input.txt", "r", stdin);
    //freopen("_output.txt", "w", stdout);
    //#endif
    solve();
    clock_t end = clock();
    cerr<<"Time: "<<fixed<<setprecision(10)<<double(end-start)/double(CLOCKS_PER_SEC)<<"\n";
    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 16720 KB Output is correct
2 Correct 71 ms 16720 KB Output is correct
3 Correct 71 ms 16868 KB Output is correct
4 Correct 69 ms 16728 KB Output is correct
5 Correct 69 ms 16728 KB Output is correct
6 Correct 69 ms 16720 KB Output is correct
7 Correct 71 ms 16800 KB Output is correct
8 Correct 74 ms 16604 KB Output is correct
9 Correct 67 ms 16720 KB Output is correct
10 Correct 71 ms 16720 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 60 ms 16812 KB Output is correct
2 Correct 67 ms 16728 KB Output is correct
3 Correct 76 ms 16720 KB Output is correct
4 Correct 64 ms 16728 KB Output is correct
5 Correct 66 ms 16720 KB Output is correct
6 Correct 58 ms 16728 KB Output is correct
7 Correct 62 ms 16868 KB Output is correct
8 Correct 72 ms 16856 KB Output is correct
9 Correct 67 ms 16728 KB Output is correct
10 Correct 73 ms 16980 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 16852 KB Output is correct
2 Correct 85 ms 16724 KB Output is correct
3 Correct 84 ms 16840 KB Output is correct
4 Correct 84 ms 16816 KB Output is correct
5 Correct 84 ms 16832 KB Output is correct
6 Correct 86 ms 16740 KB Output is correct
7 Correct 89 ms 16720 KB Output is correct
8 Correct 93 ms 16840 KB Output is correct
9 Correct 88 ms 16976 KB Output is correct
10 Correct 94 ms 16860 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2648 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 0 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2648 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 0 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 1 ms 2648 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 1 ms 2392 KB Output is correct
16 Correct 1 ms 2392 KB Output is correct
17 Correct 1 ms 2392 KB Output is correct
18 Correct 1 ms 2392 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2392 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2648 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 0 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 1 ms 2648 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 1 ms 2392 KB Output is correct
16 Correct 1 ms 2392 KB Output is correct
17 Correct 1 ms 2392 KB Output is correct
18 Correct 1 ms 2392 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2392 KB Output is correct
21 Correct 1 ms 2392 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 2392 KB Output is correct
27 Correct 1 ms 2392 KB Output is correct
28 Correct 1 ms 2392 KB Output is correct
29 Correct 2 ms 2392 KB Output is correct
30 Correct 1 ms 2392 KB Output is correct

Subtask #7
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 16720 KB Output is correct
2 Correct 71 ms 16720 KB Output is correct
3 Correct 71 ms 16868 KB Output is correct
4 Correct 69 ms 16728 KB Output is correct
5 Correct 69 ms 16728 KB Output is correct
6 Correct 69 ms 16720 KB Output is correct
7 Correct 71 ms 16800 KB Output is correct
8 Correct 74 ms 16604 KB Output is correct
9 Correct 67 ms 16720 KB Output is correct
10 Correct 71 ms 16720 KB Output is correct
11 Correct 60 ms 16812 KB Output is correct
12 Correct 67 ms 16728 KB Output is correct
13 Correct 76 ms 16720 KB Output is correct
14 Correct 64 ms 16728 KB Output is correct
15 Correct 66 ms 16720 KB Output is correct
16 Correct 58 ms 16728 KB Output is correct
17 Correct 62 ms 16868 KB Output is correct
18 Correct 72 ms 16856 KB Output is correct
19 Correct 67 ms 16728 KB Output is correct
20 Correct 73 ms 16980 KB Output is correct
21 Correct 86 ms 16852 KB Output is correct
22 Correct 85 ms 16724 KB Output is correct
23 Correct 84 ms 16840 KB Output is correct
24 Correct 84 ms 16816 KB Output is correct
25 Correct 84 ms 16832 KB Output is correct
26 Correct 86 ms 16740 KB Output is correct
27 Correct 89 ms 16720 KB Output is correct
28 Correct 93 ms 16840 KB Output is correct
29 Correct 88 ms 16976 KB Output is correct
30 Correct 94 ms 16860 KB Output is correct
31 Correct 1 ms 2392 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct
33 Correct 1 ms 2648 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 1 ms 2392 KB Output is correct
36 Correct 0 ms 2392 KB Output is correct
37 Correct 1 ms 2392 KB Output is correct
38 Correct 1 ms 2392 KB Output is correct
39 Correct 1 ms 2392 KB Output is correct
40 Correct 1 ms 2392 KB Output is correct
41 Correct 1 ms 2392 KB Output is correct
42 Correct 1 ms 2648 KB Output is correct
43 Correct 1 ms 2392 KB Output is correct
44 Correct 1 ms 2392 KB Output is correct
45 Correct 1 ms 2392 KB Output is correct
46 Correct 1 ms 2392 KB Output is correct
47 Correct 1 ms 2392 KB Output is correct
48 Correct 1 ms 2392 KB Output is correct
49 Correct 1 ms 2392 KB Output is correct
50 Correct 1 ms 2392 KB Output is correct
51 Correct 1 ms 2392 KB Output is correct
52 Correct 1 ms 2396 KB Output is correct
53 Correct 1 ms 2396 KB Output is correct
54 Correct 1 ms 2396 KB Output is correct
55 Correct 1 ms 2392 KB Output is correct
56 Correct 1 ms 2392 KB Output is correct
57 Correct 1 ms 2392 KB Output is correct
58 Correct 1 ms 2392 KB Output is correct
59 Correct 2 ms 2392 KB Output is correct
60 Correct 1 ms 2392 KB Output is correct
61 Correct 118 ms 16820 KB Output is correct
62 Correct 119 ms 16872 KB Output is correct
63 Correct 97 ms 16808 KB Output is correct
64 Correct 123 ms 16856 KB Output is correct
65 Correct 126 ms 17016 KB Output is correct
66 Correct 128 ms 16976 KB Output is correct
67 Correct 119 ms 16720 KB Output is correct
68 Correct 91 ms 16976 KB Output is correct
69 Correct 92 ms 16808 KB Output is correct
70 Correct 87 ms 16728 KB Output is correct