oj.uz

Submission #164085

# Submission time Handle Problem Language Result Execution time Memory
164085 2019-11-17T12:01:21 Z dandrozavr Bigger segments (IZhO19_segments) C++14
37 / 100
 1174 ms 146152 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("output1.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];
    ll nac[n + 2] = {};
    fill(nac, nac + n + 1, 1e9);
    nac[1] = 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 (nac[j - 1] == 1e9) continue;
            int l = nac[j - 1], r = i - 1;
            while(l < r)
            {
                int mid = ((l + r) >> 1) + 1;
                if (pref[i] - pref[mid] >= dp[mid][j - 1])
                    l = mid; else
                    r = mid - 1;
            }
            for (int l2 = max(0, l - 50); l2 <= min(i - 1, l + 50); ++l2)
            if (pref[i] - pref[l2] >= dp[l2][j - 1])
            {
                dp[i][j] = min(dp[i][j], pref[i] - pref[l2]);
                nac[j] = min(nac[j], 1ll * i);
////                cout<<i<<" "<<j<<" "<<l<<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
segments.cpp: In function 'int main()':
segments.cpp:91:14: warning: unused variable 'byl' [-Wunused-variable]
         bool byl = 1;
              ^~~

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 504 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 3 ms 504 KB Output is correct
10 Correct 2 ms 504 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 424 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 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 504 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 3 ms 504 KB Output is correct
10 Correct 2 ms 504 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 424 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 6 ms 4348 KB Output is correct
17 Correct 7 ms 4344 KB Output is correct
18 Correct 11 ms 4344 KB Output is correct
19 Correct 30 ms 4412 KB Output is correct
20 Correct 29 ms 4344 KB Output is correct
21 Correct 9 ms 4348 KB Output is correct
22 Correct 7 ms 3144 KB Output is correct
23 Correct 5 ms 2296 KB Output is correct
24 Correct 10 ms 4368 KB Output is correct
25 Correct 9 ms 4316 KB Output is correct
26 Correct 37 ms 4348 KB Output is correct
27 Correct 22 ms 4344 KB Output is correct
28 Correct 11 ms 4344 KB Output is correct
29 Correct 28 ms 4344 KB Output is correct
30 Correct 29 ms 4344 KB Output is correct

Subtask #3
10.0 / 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 504 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 3 ms 504 KB Output is correct
10 Correct 2 ms 504 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 424 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 6 ms 4348 KB Output is correct
17 Correct 7 ms 4344 KB Output is correct
18 Correct 11 ms 4344 KB Output is correct
19 Correct 30 ms 4412 KB Output is correct
20 Correct 29 ms 4344 KB Output is correct
21 Correct 9 ms 4348 KB Output is correct
22 Correct 7 ms 3144 KB Output is correct
23 Correct 5 ms 2296 KB Output is correct
24 Correct 10 ms 4368 KB Output is correct
25 Correct 9 ms 4316 KB Output is correct
26 Correct 37 ms 4348 KB Output is correct
27 Correct 22 ms 4344 KB Output is correct
28 Correct 11 ms 4344 KB Output is correct
29 Correct 28 ms 4344 KB Output is correct
30 Correct 29 ms 4344 KB Output is correct
31 Correct 77 ms 70904 KB Output is correct
32 Correct 82 ms 71048 KB Output is correct
33 Correct 172 ms 70952 KB Output is correct
34 Correct 1174 ms 70956 KB Output is correct
35 Correct 1085 ms 70944 KB Output is correct
36 Correct 139 ms 70904 KB Output is correct
37 Correct 111 ms 59232 KB Output is correct
38 Correct 78 ms 39800 KB Output is correct
39 Correct 149 ms 71032 KB Output is correct
40 Correct 140 ms 71032 KB Output is correct
41 Correct 1138 ms 70964 KB Output is correct
42 Correct 1065 ms 71032 KB Output is correct
43 Correct 367 ms 70936 KB Output is correct
44 Correct 1079 ms 71032 KB Output is correct
45 Correct 1153 ms 70932 KB Output is correct

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 504 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 3 ms 504 KB Output is correct
10 Correct 2 ms 504 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 424 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 6 ms 4348 KB Output is correct
17 Correct 7 ms 4344 KB Output is correct
18 Correct 11 ms 4344 KB Output is correct
19 Correct 30 ms 4412 KB Output is correct
20 Correct 29 ms 4344 KB Output is correct
21 Correct 9 ms 4348 KB Output is correct
22 Correct 7 ms 3144 KB Output is correct
23 Correct 5 ms 2296 KB Output is correct
24 Correct 10 ms 4368 KB Output is correct
25 Correct 9 ms 4316 KB Output is correct
26 Correct 37 ms 4348 KB Output is correct
27 Correct 22 ms 4344 KB Output is correct
28 Correct 11 ms 4344 KB Output is correct
29 Correct 28 ms 4344 KB Output is correct
30 Correct 29 ms 4344 KB Output is correct
31 Correct 77 ms 70904 KB Output is correct
32 Correct 82 ms 71048 KB Output is correct
33 Correct 172 ms 70952 KB Output is correct
34 Correct 1174 ms 70956 KB Output is correct
35 Correct 1085 ms 70944 KB Output is correct
36 Correct 139 ms 70904 KB Output is correct
37 Correct 111 ms 59232 KB Output is correct
38 Correct 78 ms 39800 KB Output is correct
39 Correct 149 ms 71032 KB Output is correct
40 Correct 140 ms 71032 KB Output is correct
41 Correct 1138 ms 70964 KB Output is correct
42 Correct 1065 ms 71032 KB Output is correct
43 Correct 367 ms 70936 KB Output is correct
44 Correct 1079 ms 71032 KB Output is correct
45 Correct 1153 ms 70932 KB Output is correct
46 Runtime error 334 ms 146152 KB Execution killed with signal 11 (could be triggered by violating memory limits)
47 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 504 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 3 ms 504 KB Output is correct
10 Correct 2 ms 504 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 424 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 6 ms 4348 KB Output is correct
17 Correct 7 ms 4344 KB Output is correct
18 Correct 11 ms 4344 KB Output is correct
19 Correct 30 ms 4412 KB Output is correct
20 Correct 29 ms 4344 KB Output is correct
21 Correct 9 ms 4348 KB Output is correct
22 Correct 7 ms 3144 KB Output is correct
23 Correct 5 ms 2296 KB Output is correct
24 Correct 10 ms 4368 KB Output is correct
25 Correct 9 ms 4316 KB Output is correct
26 Correct 37 ms 4348 KB Output is correct
27 Correct 22 ms 4344 KB Output is correct
28 Correct 11 ms 4344 KB Output is correct
29 Correct 28 ms 4344 KB Output is correct
30 Correct 29 ms 4344 KB Output is correct
31 Correct 77 ms 70904 KB Output is correct
32 Correct 82 ms 71048 KB Output is correct
33 Correct 172 ms 70952 KB Output is correct
34 Correct 1174 ms 70956 KB Output is correct
35 Correct 1085 ms 70944 KB Output is correct
36 Correct 139 ms 70904 KB Output is correct
37 Correct 111 ms 59232 KB Output is correct
38 Correct 78 ms 39800 KB Output is correct
39 Correct 149 ms 71032 KB Output is correct
40 Correct 140 ms 71032 KB Output is correct
41 Correct 1138 ms 70964 KB Output is correct
42 Correct 1065 ms 71032 KB Output is correct
43 Correct 367 ms 70936 KB Output is correct
44 Correct 1079 ms 71032 KB Output is correct
45 Correct 1153 ms 70932 KB Output is correct
46 Runtime error 334 ms 146152 KB Execution killed with signal 11 (could be triggered by violating memory limits)
47 Halted 0 ms 0 KB -