oj.uz

Submission #945476

# Submission time Handle Problem Language Result Execution time Memory
945476 2024-03-14T00:00:11 Z SirCovidThe19th Feast (NOI19_feast) C++17
100 / 100
 230 ms 14164 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define ll long long

const int MAX = 3e5 + 5;

int n, k, A[MAX]; pair<ll, ll> dp[MAX][2];
 
pair<ll, ll> better(pair<ll, ll> a, pair<ll, ll> b){
    if (a.first == b.first) 
        return (a.second < b.second ? a : b);

    return (a.first > b.first ? a : b);
}

bool solve(ll lmb){
    dp[0][0] = {0, 0}; 
    dp[0][1] = {-1e18, 0};
 
    for (int i = 1; i <= n; i++){
        dp[i][0] = better(dp[i - 1][0], dp[i - 1][1]);

        dp[i][1] = better(
            {dp[i - 1][0].first + A[i] - lmb, dp[i - 1][0].second + 1}, 
            {dp[i - 1][1].first + A[i], dp[i - 1][1].second}
        );
    }
    return better(dp[n][0], dp[n][1]).second <= k;
}
 
int main(){
    ios_base::sync_with_stdio; cin.tie(0);
    cin >> n >> k;

    for (int i = 1; i <= n; i++) 
        cin >> A[i];
 
    ll L = 0, H = 1e15;

    while (L < H){
        ll M = (L + H) / 2;
        solve(M) ? H = M : L = M + 1;
    }
    solve(L);
    
    cout << better(dp[n][0], dp[n][1]).first + L * k << "\n";
}

Compilation message

feast.cpp: In function 'int main()':
feast.cpp:33:15: warning: statement is a reference, not call, to function 'std::ios_base::sync_with_stdio' [-Waddress]
   33 |     ios_base::sync_with_stdio; cin.tie(0);
      |     ~~~~~~~~~~^~~~~~~~~~~~~~~
feast.cpp:33:15: warning: statement has no effect [-Wunused-value]

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 219 ms 13588 KB Output is correct
2 Correct 220 ms 13712 KB Output is correct
3 Correct 230 ms 13652 KB Output is correct
4 Correct 219 ms 13652 KB Output is correct
5 Correct 229 ms 13652 KB Output is correct
6 Correct 213 ms 13744 KB Output is correct
7 Correct 213 ms 13748 KB Output is correct
8 Correct 217 ms 13652 KB Output is correct
9 Correct 219 ms 13752 KB Output is correct
10 Correct 217 ms 13652 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 172 ms 12116 KB Output is correct
2 Correct 178 ms 12124 KB Output is correct
3 Correct 175 ms 11860 KB Output is correct
4 Correct 178 ms 12088 KB Output is correct
5 Correct 212 ms 13652 KB Output is correct
6 Correct 189 ms 11856 KB Output is correct
7 Correct 184 ms 12120 KB Output is correct
8 Correct 216 ms 13840 KB Output is correct
9 Correct 218 ms 13736 KB Output is correct
10 Correct 178 ms 11860 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 218 ms 13752 KB Output is correct
2 Correct 212 ms 13912 KB Output is correct
3 Correct 214 ms 13908 KB Output is correct
4 Correct 214 ms 13944 KB Output is correct
5 Correct 222 ms 13904 KB Output is correct
6 Correct 215 ms 13984 KB Output is correct
7 Correct 221 ms 14160 KB Output is correct
8 Correct 212 ms 13908 KB Output is correct
9 Correct 214 ms 14028 KB Output is correct
10 Correct 225 ms 13856 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 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 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 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 2392 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 2480 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 2548 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2488 KB Output is correct
20 Correct 1 ms 2396 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 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 2392 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 2480 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 2548 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2488 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 2 ms 2404 KB Output is correct
22 Correct 2 ms 2396 KB Output is correct
23 Correct 2 ms 2396 KB Output is correct
24 Correct 2 ms 2396 KB Output is correct
25 Correct 2 ms 2396 KB Output is correct
26 Correct 2 ms 2396 KB Output is correct
27 Correct 2 ms 2508 KB Output is correct
28 Correct 2 ms 2392 KB Output is correct
29 Correct 2 ms 2392 KB Output is correct
30 Correct 2 ms 2396 KB Output is correct

Subtask #7
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 219 ms 13588 KB Output is correct
2 Correct 220 ms 13712 KB Output is correct
3 Correct 230 ms 13652 KB Output is correct
4 Correct 219 ms 13652 KB Output is correct
5 Correct 229 ms 13652 KB Output is correct
6 Correct 213 ms 13744 KB Output is correct
7 Correct 213 ms 13748 KB Output is correct
8 Correct 217 ms 13652 KB Output is correct
9 Correct 219 ms 13752 KB Output is correct
10 Correct 217 ms 13652 KB Output is correct
11 Correct 172 ms 12116 KB Output is correct
12 Correct 178 ms 12124 KB Output is correct
13 Correct 175 ms 11860 KB Output is correct
14 Correct 178 ms 12088 KB Output is correct
15 Correct 212 ms 13652 KB Output is correct
16 Correct 189 ms 11856 KB Output is correct
17 Correct 184 ms 12120 KB Output is correct
18 Correct 216 ms 13840 KB Output is correct
19 Correct 218 ms 13736 KB Output is correct
20 Correct 178 ms 11860 KB Output is correct
21 Correct 218 ms 13752 KB Output is correct
22 Correct 212 ms 13912 KB Output is correct
23 Correct 214 ms 13908 KB Output is correct
24 Correct 214 ms 13944 KB Output is correct
25 Correct 222 ms 13904 KB Output is correct
26 Correct 215 ms 13984 KB Output is correct
27 Correct 221 ms 14160 KB Output is correct
28 Correct 212 ms 13908 KB Output is correct
29 Correct 214 ms 14028 KB Output is correct
30 Correct 225 ms 13856 KB Output is correct
31 Correct 1 ms 2392 KB Output is correct
32 Correct 1 ms 2396 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 ms 2396 KB Output is correct
37 Correct 1 ms 2396 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 1 ms 2396 KB Output is correct
40 Correct 1 ms 2392 KB Output is correct
41 Correct 1 ms 2396 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 1 ms 2480 KB Output is correct
44 Correct 1 ms 2396 KB Output is correct
45 Correct 1 ms 2396 KB Output is correct
46 Correct 1 ms 2396 KB Output is correct
47 Correct 1 ms 2548 KB Output is correct
48 Correct 1 ms 2396 KB Output is correct
49 Correct 1 ms 2488 KB Output is correct
50 Correct 1 ms 2396 KB Output is correct
51 Correct 2 ms 2404 KB Output is correct
52 Correct 2 ms 2396 KB Output is correct
53 Correct 2 ms 2396 KB Output is correct
54 Correct 2 ms 2396 KB Output is correct
55 Correct 2 ms 2396 KB Output is correct
56 Correct 2 ms 2396 KB Output is correct
57 Correct 2 ms 2508 KB Output is correct
58 Correct 2 ms 2392 KB Output is correct
59 Correct 2 ms 2392 KB Output is correct
60 Correct 2 ms 2396 KB Output is correct
61 Correct 216 ms 13928 KB Output is correct
62 Correct 221 ms 14036 KB Output is correct
63 Correct 229 ms 13844 KB Output is correct
64 Correct 218 ms 13908 KB Output is correct
65 Correct 226 ms 14164 KB Output is correct
66 Correct 217 ms 13908 KB Output is correct
67 Correct 214 ms 13908 KB Output is correct
68 Correct 219 ms 13976 KB Output is correct
69 Correct 212 ms 13724 KB Output is correct
70 Correct 213 ms 13908 KB Output is correct