oj.uz

Submission #497563

# Submission time Handle Problem Language Result Execution time Memory
497563 2021-12-23T09:43:48 Z kingline Bigger segments (IZhO19_segments) C++17
100 / 100
 67 ms 16452 KB 
/*#pragma GCC optimize("O3")
#pragma GCC target ("avx2")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize("unroll-loops")*/
#include <bits/stdc++.h>
#pragma GCC optimize ("unroll-loops,Ofast,O3")
#pragma GCC target("avx,avx2,fma")
//#define file(data) freopen(data".in", "r", stdin); freopen(data".out", "w", stdout);
#define pb push_back
//#define ios ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define all(data) data.begin() , data.end()
#define endl '\n'
//freopen("nenokku_easy.in", "r", stdin);
//freopen("nenokku_easy.out", "w", stdout);
#define int long long
#define pii pair < int, int >
#define pll pair < long long, long long >

using namespace std;

typedef long long ll;
const int N = 1e6 + 5;
const int M = 3005;
const int mod = 1e9 + 7;

int n, a[N], pref[N];
pair < int, int > dp[N];

main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    //file("pieaters");
    cin >> n;
    for(int i = 1; i <= n; i++) {
        cin >> a[i];
        pref[i] = pref[i - 1] + a[i];
    }
    for(int i = 1; i <= n; i++) {
        dp[i].second = max(dp[i - 1].second, dp[i].second);
        dp[i].first = dp[dp[i].second].first + 1;
        int l = i + 1, r = n;
        while(l < r) {
            int md = (l + r) / 2;
            if(pref[md] >= 2 * pref[i] - pref[dp[i].second]) {
                r = md;
            } else {
                l = md + 1;
            }
        }
        if(pref[l] >= 2 * pref[i] - pref[dp[i].second]) dp[l].second = max(dp[l].second, i);
    }
    cout << dp[n].first;
}

Compilation message

segments.cpp:30:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   30 | main() {
      | ^~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 320 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 328 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 324 KB Output is correct
15 Correct 1 ms 324 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 320 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 328 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 324 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 0 ms 324 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 0 ms 304 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 1 ms 324 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 320 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 328 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 324 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 0 ms 324 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 0 ms 304 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 1 ms 324 KB Output is correct
31 Correct 1 ms 324 KB Output is correct
32 Correct 1 ms 328 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 328 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 324 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 332 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 320 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 328 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 324 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 0 ms 324 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 0 ms 304 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 1 ms 324 KB Output is correct
31 Correct 1 ms 324 KB Output is correct
32 Correct 1 ms 328 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 328 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 324 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 332 KB Output is correct
46 Correct 10 ms 3400 KB Output is correct
47 Correct 13 ms 3720 KB Output is correct
48 Correct 14 ms 3788 KB Output is correct
49 Correct 14 ms 3816 KB Output is correct
50 Correct 13 ms 3824 KB Output is correct
51 Correct 14 ms 3788 KB Output is correct
52 Correct 8 ms 2244 KB Output is correct
53 Correct 5 ms 1476 KB Output is correct
54 Correct 12 ms 3680 KB Output is correct
55 Correct 13 ms 3776 KB Output is correct
56 Correct 10 ms 3724 KB Output is correct
57 Correct 11 ms 3800 KB Output is correct
58 Correct 11 ms 3780 KB Output is correct
59 Correct 10 ms 3788 KB Output is correct
60 Correct 10 ms 3760 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 320 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 328 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 324 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 0 ms 324 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 0 ms 304 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 1 ms 324 KB Output is correct
31 Correct 1 ms 324 KB Output is correct
32 Correct 1 ms 328 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 328 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 324 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 332 KB Output is correct
46 Correct 10 ms 3400 KB Output is correct
47 Correct 13 ms 3720 KB Output is correct
48 Correct 14 ms 3788 KB Output is correct
49 Correct 14 ms 3816 KB Output is correct
50 Correct 13 ms 3824 KB Output is correct
51 Correct 14 ms 3788 KB Output is correct
52 Correct 8 ms 2244 KB Output is correct
53 Correct 5 ms 1476 KB Output is correct
54 Correct 12 ms 3680 KB Output is correct
55 Correct 13 ms 3776 KB Output is correct
56 Correct 10 ms 3724 KB Output is correct
57 Correct 11 ms 3800 KB Output is correct
58 Correct 11 ms 3780 KB Output is correct
59 Correct 10 ms 3788 KB Output is correct
60 Correct 10 ms 3760 KB Output is correct
61 Correct 49 ms 16328 KB Output is correct
62 Correct 57 ms 16452 KB Output is correct
63 Correct 60 ms 16332 KB Output is correct
64 Correct 65 ms 16324 KB Output is correct
65 Correct 58 ms 16332 KB Output is correct
66 Correct 67 ms 16312 KB Output is correct
67 Correct 55 ms 13224 KB Output is correct
68 Correct 28 ms 6992 KB Output is correct
69 Correct 48 ms 16352 KB Output is correct
70 Correct 64 ms 16324 KB Output is correct
71 Correct 43 ms 16324 KB Output is correct
72 Correct 52 ms 16372 KB Output is correct
73 Correct 54 ms 16340 KB Output is correct
74 Correct 52 ms 16352 KB Output is correct
75 Correct 53 ms 16320 KB Output is correct