oj.uz

Submission #164074

# Submission time Handle Problem Language Result Execution time Memory
164074 2019-11-17T09:36:55 Z dandrozavr Bigger segments (IZhO19_segments) C++14
27 / 100
 1500 ms 70988 KB 
/*
Uruchamiamy samolot zwiadowczy ( + 500% do wzlamaniej )

/▄/  /█/  /🔥/   /▐/   /▌/ /▀/ /░/ /◐ / choose  your  own style

***IT'S OUR LONG WAY TO THE OIILLLL***


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*/



//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4")

#include <bits/stdc++.h>

using namespace std;
#include <ext/pb_ds/detail/standard_policies.hpp>'
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;template <typename T> using ordered_set = tree <T, null_type, less< T >, rb_tree_tag,tree_order_statistics_node_update>;

#define pb push_back
#define ll long long
#define ld long double
#define fi first
#define se second
#define pii pair < ll , int >
#define pipii pair< int, pair < int , int > >
#define siz(n) (int)(n.size())
#define TIME 1.0 * clock() / CLOCKS_PER_SEC
mt19937 gen(chrono::high_resolution_clock::now().time_since_epoch().count());

const int inf=1e9 + 7;
const ll inf18=1e18 + 7;
const int N=1e6 + 7;
const int MN = 2097152;
const int M = 1e9 + 7;

ll dp[3001][3001];

int main() {

    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    srand(time(0));
    #ifdef Estb_probitie
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif

    int n;
    cin >> n;
    int a[n];
    for (int i = 0; i < n; ++i)
        cin >> a[i];
    ll pref[n];
    pref[0] = a[0];
    for (int i = 1; i < n; ++i)
        pref[i] = pref[i - 1] + a[i];

    for (int i = 0; i < n; ++i)
        fill(dp[i], dp[i] + n + 1, 1e17);

    dp[0][1] = a[0];

    for (int i = 1; i < n; ++i)
    {
        bool byl = 1;
        for (int j = 1; j <= i + 1; ++j)
        {
            dp[i][j] = min(dp[i][j], a[i] + dp[i - 1][j]);

            if (j > 1 && byl)
            {
                byl = 0;
                for (int k = i - 1; k >= 0; --k)
                if (pref[i] - pref[k] >= dp[k][j - 1])
                {
                    dp[i][j] = min(dp[i][j], pref[i] - pref[k]);
                    byl = 1;
//                    cout<<i<<" "<<k<<endl;
                    break;
                }
//            cout<<endl;
            }
            if (dp[i][j] >= 1e17) break;
        }
//        if (i % 100 == 0)
//        cerr<<"i = "<<i<<endl;
//        cout<<endl;
    }

    int ans = 0;
    for (int j = 1; j <= n; ++j)
        if (dp[n - 1][j] < 1e16)
        {
            ans = j;
        }
    cout << ans;
}

Compilation message

segments.cpp:35:50: warning: missing terminating ' character
 #include <ext/pb_ds/detail/standard_policies.hpp>'
                                                  ^
segments.cpp:35:50: warning: extra tokens at end of #include directive

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 372 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 372 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 5 ms 4344 KB Output is correct
17 Correct 6 ms 4344 KB Output is correct
18 Correct 7 ms 4344 KB Output is correct
19 Correct 15 ms 4316 KB Output is correct
20 Correct 6 ms 4344 KB Output is correct
21 Correct 6 ms 4344 KB Output is correct
22 Correct 5 ms 3192 KB Output is correct
23 Correct 4 ms 2296 KB Output is correct
24 Correct 6 ms 4336 KB Output is correct
25 Correct 6 ms 4344 KB Output is correct
26 Correct 6 ms 4344 KB Output is correct
27 Correct 18 ms 4344 KB Output is correct
28 Correct 6 ms 4344 KB Output is correct
29 Correct 6 ms 4344 KB Output is correct
30 Correct 8 ms 4476 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 372 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 5 ms 4344 KB Output is correct
17 Correct 6 ms 4344 KB Output is correct
18 Correct 7 ms 4344 KB Output is correct
19 Correct 15 ms 4316 KB Output is correct
20 Correct 6 ms 4344 KB Output is correct
21 Correct 6 ms 4344 KB Output is correct
22 Correct 5 ms 3192 KB Output is correct
23 Correct 4 ms 2296 KB Output is correct
24 Correct 6 ms 4336 KB Output is correct
25 Correct 6 ms 4344 KB Output is correct
26 Correct 6 ms 4344 KB Output is correct
27 Correct 18 ms 4344 KB Output is correct
28 Correct 6 ms 4344 KB Output is correct
29 Correct 6 ms 4344 KB Output is correct
30 Correct 8 ms 4476 KB Output is correct
31 Correct 91 ms 70988 KB Output is correct
32 Correct 111 ms 70956 KB Output is correct
33 Correct 140 ms 70840 KB Output is correct
34 Execution timed out 1553 ms 70948 KB Time limit exceeded
35 Halted 0 ms 0 KB -

Subtask #4
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 372 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 5 ms 4344 KB Output is correct
17 Correct 6 ms 4344 KB Output is correct
18 Correct 7 ms 4344 KB Output is correct
19 Correct 15 ms 4316 KB Output is correct
20 Correct 6 ms 4344 KB Output is correct
21 Correct 6 ms 4344 KB Output is correct
22 Correct 5 ms 3192 KB Output is correct
23 Correct 4 ms 2296 KB Output is correct
24 Correct 6 ms 4336 KB Output is correct
25 Correct 6 ms 4344 KB Output is correct
26 Correct 6 ms 4344 KB Output is correct
27 Correct 18 ms 4344 KB Output is correct
28 Correct 6 ms 4344 KB Output is correct
29 Correct 6 ms 4344 KB Output is correct
30 Correct 8 ms 4476 KB Output is correct
31 Correct 91 ms 70988 KB Output is correct
32 Correct 111 ms 70956 KB Output is correct
33 Correct 140 ms 70840 KB Output is correct
34 Execution timed out 1553 ms 70948 KB Time limit exceeded
35 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 372 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 5 ms 4344 KB Output is correct
17 Correct 6 ms 4344 KB Output is correct
18 Correct 7 ms 4344 KB Output is correct
19 Correct 15 ms 4316 KB Output is correct
20 Correct 6 ms 4344 KB Output is correct
21 Correct 6 ms 4344 KB Output is correct
22 Correct 5 ms 3192 KB Output is correct
23 Correct 4 ms 2296 KB Output is correct
24 Correct 6 ms 4336 KB Output is correct
25 Correct 6 ms 4344 KB Output is correct
26 Correct 6 ms 4344 KB Output is correct
27 Correct 18 ms 4344 KB Output is correct
28 Correct 6 ms 4344 KB Output is correct
29 Correct 6 ms 4344 KB Output is correct
30 Correct 8 ms 4476 KB Output is correct
31 Correct 91 ms 70988 KB Output is correct
32 Correct 111 ms 70956 KB Output is correct
33 Correct 140 ms 70840 KB Output is correct
34 Execution timed out 1553 ms 70948 KB Time limit exceeded
35 Halted 0 ms 0 KB -