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Submission #1017465

# Submission time Handle Problem Language Result Execution time Memory
1017465 2024-07-09T08:13:43 Z vjudge1 Feast (NOI19_feast) C++17
100 / 100
 154 ms 12364 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef long double ld;
#define pb push_back
#define pf push_front
#define fi first
#define se second
const ll mod = 1e9+7, mxn = 3e5+7;
ll n, a[mxn], k;
pair<ll,ll> lmb(ll x)
{
    pair<ll,ll> dp[mxn][2];
    dp[1][0] = {0,0}; dp[1][1] = {a[1]-x,1};
    for (ll i = 2; i <= n; i++)
    {
        dp[i][0] = max(dp[i-1][0],dp[i-1][1]);
        dp[i][1] = max(make_pair(dp[i-1][0].fi+a[i]-x,dp[i-1][0].se+1),
                       make_pair(dp[i-1][1].fi+a[i],dp[i-1][1].se));
    }
    return max(dp[n][0],dp[n][1]);
}
void aliens()
{
    ll l = 0, r = 1e18, ans = -1;
    while (r >= l)
    {
        ll m = (r+l)>>1;
        pair<ll,ll> opt = lmb(m);
        if (opt.se <= k)
        {
            ans = max(ans,opt.fi+m*opt.se);
            r = m-1;
        }
        else l = m+1;
    }
    cout << ans;
}
signed main()
{
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    // freopen("test.inp","r",stdin); freopen("test.out","w",stdout); freopen("test.err","w",stderr);
    cin >> n >> k;
    for (ll i = 1; i <= n; i++) cin >> a[i];
    aliens();
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 69 ms 11868 KB Output is correct
2 Correct 70 ms 12112 KB Output is correct
3 Correct 71 ms 12120 KB Output is correct
4 Correct 71 ms 12116 KB Output is correct
5 Correct 71 ms 12112 KB Output is correct
6 Correct 70 ms 12100 KB Output is correct
7 Correct 69 ms 11864 KB Output is correct
8 Correct 72 ms 12112 KB Output is correct
9 Correct 68 ms 11860 KB Output is correct
10 Correct 77 ms 12136 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 62 ms 12124 KB Output is correct
2 Correct 64 ms 12168 KB Output is correct
3 Correct 62 ms 12120 KB Output is correct
4 Correct 62 ms 12124 KB Output is correct
5 Correct 70 ms 11856 KB Output is correct
6 Correct 64 ms 12120 KB Output is correct
7 Correct 66 ms 12112 KB Output is correct
8 Correct 72 ms 12124 KB Output is correct
9 Correct 70 ms 12104 KB Output is correct
10 Correct 64 ms 12164 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 99 ms 12148 KB Output is correct
2 Correct 109 ms 12116 KB Output is correct
3 Correct 96 ms 12112 KB Output is correct
4 Correct 124 ms 12120 KB Output is correct
5 Correct 104 ms 12120 KB Output is correct
6 Correct 98 ms 12116 KB Output is correct
7 Correct 97 ms 12112 KB Output is correct
8 Correct 97 ms 12124 KB Output is correct
9 Correct 105 ms 12168 KB Output is correct
10 Correct 97 ms 12124 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 9820 KB Output is correct
2 Correct 19 ms 9820 KB Output is correct
3 Correct 20 ms 9816 KB Output is correct
4 Correct 18 ms 9820 KB Output is correct
5 Correct 18 ms 9820 KB Output is correct
6 Correct 18 ms 9776 KB Output is correct
7 Correct 18 ms 9852 KB Output is correct
8 Correct 18 ms 9624 KB Output is correct
9 Correct 20 ms 9848 KB Output is correct
10 Correct 18 ms 9816 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 9820 KB Output is correct
2 Correct 19 ms 9820 KB Output is correct
3 Correct 20 ms 9816 KB Output is correct
4 Correct 18 ms 9820 KB Output is correct
5 Correct 18 ms 9820 KB Output is correct
6 Correct 18 ms 9776 KB Output is correct
7 Correct 18 ms 9852 KB Output is correct
8 Correct 18 ms 9624 KB Output is correct
9 Correct 20 ms 9848 KB Output is correct
10 Correct 18 ms 9816 KB Output is correct
11 Correct 18 ms 9816 KB Output is correct
12 Correct 19 ms 9820 KB Output is correct
13 Correct 18 ms 9820 KB Output is correct
14 Correct 20 ms 9732 KB Output is correct
15 Correct 20 ms 9816 KB Output is correct
16 Correct 18 ms 9820 KB Output is correct
17 Correct 19 ms 9820 KB Output is correct
18 Correct 19 ms 9820 KB Output is correct
19 Correct 19 ms 9820 KB Output is correct
20 Correct 19 ms 9648 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 9820 KB Output is correct
2 Correct 19 ms 9820 KB Output is correct
3 Correct 20 ms 9816 KB Output is correct
4 Correct 18 ms 9820 KB Output is correct
5 Correct 18 ms 9820 KB Output is correct
6 Correct 18 ms 9776 KB Output is correct
7 Correct 18 ms 9852 KB Output is correct
8 Correct 18 ms 9624 KB Output is correct
9 Correct 20 ms 9848 KB Output is correct
10 Correct 18 ms 9816 KB Output is correct
11 Correct 18 ms 9816 KB Output is correct
12 Correct 19 ms 9820 KB Output is correct
13 Correct 18 ms 9820 KB Output is correct
14 Correct 20 ms 9732 KB Output is correct
15 Correct 20 ms 9816 KB Output is correct
16 Correct 18 ms 9820 KB Output is correct
17 Correct 19 ms 9820 KB Output is correct
18 Correct 19 ms 9820 KB Output is correct
19 Correct 19 ms 9820 KB Output is correct
20 Correct 19 ms 9648 KB Output is correct
21 Correct 19 ms 9820 KB Output is correct
22 Correct 20 ms 9816 KB Output is correct
23 Correct 18 ms 9820 KB Output is correct
24 Correct 19 ms 9816 KB Output is correct
25 Correct 18 ms 9820 KB Output is correct
26 Correct 20 ms 9864 KB Output is correct
27 Correct 20 ms 9872 KB Output is correct
28 Correct 18 ms 9816 KB Output is correct
29 Correct 19 ms 9816 KB Output is correct
30 Correct 22 ms 9820 KB Output is correct

Subtask #7
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 69 ms 11868 KB Output is correct
2 Correct 70 ms 12112 KB Output is correct
3 Correct 71 ms 12120 KB Output is correct
4 Correct 71 ms 12116 KB Output is correct
5 Correct 71 ms 12112 KB Output is correct
6 Correct 70 ms 12100 KB Output is correct
7 Correct 69 ms 11864 KB Output is correct
8 Correct 72 ms 12112 KB Output is correct
9 Correct 68 ms 11860 KB Output is correct
10 Correct 77 ms 12136 KB Output is correct
11 Correct 62 ms 12124 KB Output is correct
12 Correct 64 ms 12168 KB Output is correct
13 Correct 62 ms 12120 KB Output is correct
14 Correct 62 ms 12124 KB Output is correct
15 Correct 70 ms 11856 KB Output is correct
16 Correct 64 ms 12120 KB Output is correct
17 Correct 66 ms 12112 KB Output is correct
18 Correct 72 ms 12124 KB Output is correct
19 Correct 70 ms 12104 KB Output is correct
20 Correct 64 ms 12164 KB Output is correct
21 Correct 99 ms 12148 KB Output is correct
22 Correct 109 ms 12116 KB Output is correct
23 Correct 96 ms 12112 KB Output is correct
24 Correct 124 ms 12120 KB Output is correct
25 Correct 104 ms 12120 KB Output is correct
26 Correct 98 ms 12116 KB Output is correct
27 Correct 97 ms 12112 KB Output is correct
28 Correct 97 ms 12124 KB Output is correct
29 Correct 105 ms 12168 KB Output is correct
30 Correct 97 ms 12124 KB Output is correct
31 Correct 18 ms 9820 KB Output is correct
32 Correct 19 ms 9820 KB Output is correct
33 Correct 20 ms 9816 KB Output is correct
34 Correct 18 ms 9820 KB Output is correct
35 Correct 18 ms 9820 KB Output is correct
36 Correct 18 ms 9776 KB Output is correct
37 Correct 18 ms 9852 KB Output is correct
38 Correct 18 ms 9624 KB Output is correct
39 Correct 20 ms 9848 KB Output is correct
40 Correct 18 ms 9816 KB Output is correct
41 Correct 18 ms 9816 KB Output is correct
42 Correct 19 ms 9820 KB Output is correct
43 Correct 18 ms 9820 KB Output is correct
44 Correct 20 ms 9732 KB Output is correct
45 Correct 20 ms 9816 KB Output is correct
46 Correct 18 ms 9820 KB Output is correct
47 Correct 19 ms 9820 KB Output is correct
48 Correct 19 ms 9820 KB Output is correct
49 Correct 19 ms 9820 KB Output is correct
50 Correct 19 ms 9648 KB Output is correct
51 Correct 19 ms 9820 KB Output is correct
52 Correct 20 ms 9816 KB Output is correct
53 Correct 18 ms 9820 KB Output is correct
54 Correct 19 ms 9816 KB Output is correct
55 Correct 18 ms 9820 KB Output is correct
56 Correct 20 ms 9864 KB Output is correct
57 Correct 20 ms 9872 KB Output is correct
58 Correct 18 ms 9816 KB Output is correct
59 Correct 19 ms 9816 KB Output is correct
60 Correct 22 ms 9820 KB Output is correct
61 Correct 123 ms 12124 KB Output is correct
62 Correct 114 ms 12120 KB Output is correct
63 Correct 110 ms 11860 KB Output is correct
64 Correct 154 ms 12160 KB Output is correct
65 Correct 132 ms 12124 KB Output is correct
66 Correct 131 ms 12364 KB Output is correct
67 Correct 134 ms 12116 KB Output is correct
68 Correct 99 ms 12124 KB Output is correct
69 Correct 96 ms 12112 KB Output is correct
70 Correct 95 ms 11860 KB Output is correct