oj.uz

Submission #164072

# Submission time Handle Problem Language Result Execution time Memory
164072 2019-11-17T09:20:09 Z dandrozavr Bigger segments (IZhO19_segments) C++14
27 / 100
 1500 ms 70788 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;


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];

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

            if (j > 1)
                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]);
                    break;
                }
//            cout<<i<<" "<<j<<" "<<dp[i][j]<<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 428 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 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 380 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 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 376 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 428 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 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 380 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 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 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 137 ms 2352 KB Output is correct
17 Correct 131 ms 2296 KB Output is correct
18 Correct 124 ms 2296 KB Output is correct
19 Correct 78 ms 2344 KB Output is correct
20 Correct 50 ms 2296 KB Output is correct
21 Correct 130 ms 2424 KB Output is correct
22 Correct 67 ms 1528 KB Output is correct
23 Correct 27 ms 1016 KB Output is correct
24 Correct 132 ms 2296 KB Output is correct
25 Correct 128 ms 2380 KB Output is correct
26 Correct 46 ms 2296 KB Output is correct
27 Correct 117 ms 2296 KB Output is correct
28 Correct 121 ms 2296 KB Output is correct
29 Correct 92 ms 2424 KB Output is correct
30 Correct 64 ms 2296 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 428 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 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 380 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 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 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 137 ms 2352 KB Output is correct
17 Correct 131 ms 2296 KB Output is correct
18 Correct 124 ms 2296 KB Output is correct
19 Correct 78 ms 2344 KB Output is correct
20 Correct 50 ms 2296 KB Output is correct
21 Correct 130 ms 2424 KB Output is correct
22 Correct 67 ms 1528 KB Output is correct
23 Correct 27 ms 1016 KB Output is correct
24 Correct 132 ms 2296 KB Output is correct
25 Correct 128 ms 2380 KB Output is correct
26 Correct 46 ms 2296 KB Output is correct
27 Correct 117 ms 2296 KB Output is correct
28 Correct 121 ms 2296 KB Output is correct
29 Correct 92 ms 2424 KB Output is correct
30 Correct 64 ms 2296 KB Output is correct
31 Execution timed out 1531 ms 70788 KB Time limit exceeded
32 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 428 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 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 380 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 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 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 137 ms 2352 KB Output is correct
17 Correct 131 ms 2296 KB Output is correct
18 Correct 124 ms 2296 KB Output is correct
19 Correct 78 ms 2344 KB Output is correct
20 Correct 50 ms 2296 KB Output is correct
21 Correct 130 ms 2424 KB Output is correct
22 Correct 67 ms 1528 KB Output is correct
23 Correct 27 ms 1016 KB Output is correct
24 Correct 132 ms 2296 KB Output is correct
25 Correct 128 ms 2380 KB Output is correct
26 Correct 46 ms 2296 KB Output is correct
27 Correct 117 ms 2296 KB Output is correct
28 Correct 121 ms 2296 KB Output is correct
29 Correct 92 ms 2424 KB Output is correct
30 Correct 64 ms 2296 KB Output is correct
31 Execution timed out 1531 ms 70788 KB Time limit exceeded
32 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 428 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 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 380 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 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 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 137 ms 2352 KB Output is correct
17 Correct 131 ms 2296 KB Output is correct
18 Correct 124 ms 2296 KB Output is correct
19 Correct 78 ms 2344 KB Output is correct
20 Correct 50 ms 2296 KB Output is correct
21 Correct 130 ms 2424 KB Output is correct
22 Correct 67 ms 1528 KB Output is correct
23 Correct 27 ms 1016 KB Output is correct
24 Correct 132 ms 2296 KB Output is correct
25 Correct 128 ms 2380 KB Output is correct
26 Correct 46 ms 2296 KB Output is correct
27 Correct 117 ms 2296 KB Output is correct
28 Correct 121 ms 2296 KB Output is correct
29 Correct 92 ms 2424 KB Output is correct
30 Correct 64 ms 2296 KB Output is correct
31 Execution timed out 1531 ms 70788 KB Time limit exceeded
32 Halted 0 ms 0 KB -