답안 #1082368

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1082368	2024-08-31T08:25:38 Z	cpptowin	Bigger segments (IZhO19_segments)	C++17	100 / 100	100 ms	59988 KB

segments

#include <bits/stdc++.h>
#define fo(i, d, c) for (int i = d; i <= c; i++)
#define fod(i, c, d) for (int i = c; i >= d; i--)
#define maxn 1000010
#define N 1010
#define fi first
#define se second
#define pb emplace_back
#define en cout << "\n";
#define int long long
#define inf (int)1e18
#define bitcount(x) __builtin_popcountll(x)
#define pii pair<int, int>
#define vii vector<pii>
#define lb(x) x & -x
#define bit(i, j) ((i >> j) & 1)
#define offbit(i, j) (i ^ (1LL << j))
#define onbit(i, j) (i | (1LL << j))
#define vi vector<int>
#define all(x) x.begin(), x.end()
#define ss(x) (int)x.size()
template <typename T1, typename T2>
bool minimize(T1 &a, T2 b)
{
    if (a > b)
    {
        a = b;
        return true;
    }
    return false;
}
template <typename T1, typename T2>
bool maximize(T1 &a, T2 b)
{
    if (a < b)
    {
        a = b;
        return true;
    }
    return false;
}
using namespace std;
const int nsqrt = 450;
const int mod = 1e9 + 7;
void add(int &x, int k)
{
    x += k;
    x %= mod;
    if(x < 0) x += mod;
}
void del(int &x, int k)
{
    x -= k;
    x %= mod;
    if(x < 0) x += mod;
}
int n,a[maxn],p[maxn];
pii f[maxn];
vii ke[maxn];
main()
{
#define name "TASK"
    if (fopen(name ".inp", "r"))
    {
        freopen(name ".inp", "r", stdin);
        freopen(name ".out", "w", stdout);
    }
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n;
    fo(i,1,n) cin >> a[i],p[i] = p[i - 1] + a[i];
    pii now = {1,0};
    ke[1].pb(now);
    fo(i,1,n) 
    {
        for(auto it : ke[i]) maximize(now,it);
        f[i] = now;
        int lb = lower_bound(p + 1,p + n + 1,2 * p[i] - p[f[i].se]) - p;
        ke[lb].pb(f[i].fi + 1,i);
    }
    cout << f[n].fi;
}

Compilation message

segments.cpp:60:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   60 | main()
      | ^~~~
segments.cpp: In function 'int main()':
segments.cpp:65:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |         freopen(name ".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
segments.cpp:66:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   66 |         freopen(name ".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	23900 KB	Output is correct
2	Correct	12 ms	23872 KB	Output is correct
3	Correct	12 ms	23900 KB	Output is correct
4	Correct	11 ms	23900 KB	Output is correct
5	Correct	11 ms	23900 KB	Output is correct
6	Correct	11 ms	23900 KB	Output is correct
7	Correct	11 ms	23728 KB	Output is correct
8	Correct	11 ms	23968 KB	Output is correct
9	Correct	12 ms	23840 KB	Output is correct
10	Correct	11 ms	23896 KB	Output is correct
11	Correct	11 ms	23968 KB	Output is correct
12	Correct	11 ms	23900 KB	Output is correct
13	Correct	11 ms	23900 KB	Output is correct
14	Correct	11 ms	23736 KB	Output is correct
15	Correct	11 ms	23900 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	23900 KB	Output is correct
2	Correct	12 ms	23872 KB	Output is correct
3	Correct	12 ms	23900 KB	Output is correct
4	Correct	11 ms	23900 KB	Output is correct
5	Correct	11 ms	23900 KB	Output is correct
6	Correct	11 ms	23900 KB	Output is correct
7	Correct	11 ms	23728 KB	Output is correct
8	Correct	11 ms	23968 KB	Output is correct
9	Correct	12 ms	23840 KB	Output is correct
10	Correct	11 ms	23896 KB	Output is correct
11	Correct	11 ms	23968 KB	Output is correct
12	Correct	11 ms	23900 KB	Output is correct
13	Correct	11 ms	23900 KB	Output is correct
14	Correct	11 ms	23736 KB	Output is correct
15	Correct	11 ms	23900 KB	Output is correct
16	Correct	12 ms	23896 KB	Output is correct
17	Correct	11 ms	23896 KB	Output is correct
18	Correct	12 ms	23952 KB	Output is correct
19	Correct	11 ms	23900 KB	Output is correct
20	Correct	11 ms	23956 KB	Output is correct
21	Correct	11 ms	23896 KB	Output is correct
22	Correct	10 ms	23896 KB	Output is correct
23	Correct	11 ms	23900 KB	Output is correct
24	Correct	11 ms	23900 KB	Output is correct
25	Correct	11 ms	23868 KB	Output is correct
26	Correct	11 ms	23900 KB	Output is correct
27	Correct	11 ms	23900 KB	Output is correct
28	Correct	11 ms	23896 KB	Output is correct
29	Correct	11 ms	23892 KB	Output is correct
30	Correct	12 ms	23796 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	23900 KB	Output is correct
2	Correct	12 ms	23872 KB	Output is correct
3	Correct	12 ms	23900 KB	Output is correct
4	Correct	11 ms	23900 KB	Output is correct
5	Correct	11 ms	23900 KB	Output is correct
6	Correct	11 ms	23900 KB	Output is correct
7	Correct	11 ms	23728 KB	Output is correct
8	Correct	11 ms	23968 KB	Output is correct
9	Correct	12 ms	23840 KB	Output is correct
10	Correct	11 ms	23896 KB	Output is correct
11	Correct	11 ms	23968 KB	Output is correct
12	Correct	11 ms	23900 KB	Output is correct
13	Correct	11 ms	23900 KB	Output is correct
14	Correct	11 ms	23736 KB	Output is correct
15	Correct	11 ms	23900 KB	Output is correct
16	Correct	12 ms	23896 KB	Output is correct
17	Correct	11 ms	23896 KB	Output is correct
18	Correct	12 ms	23952 KB	Output is correct
19	Correct	11 ms	23900 KB	Output is correct
20	Correct	11 ms	23956 KB	Output is correct
21	Correct	11 ms	23896 KB	Output is correct
22	Correct	10 ms	23896 KB	Output is correct
23	Correct	11 ms	23900 KB	Output is correct
24	Correct	11 ms	23900 KB	Output is correct
25	Correct	11 ms	23868 KB	Output is correct
26	Correct	11 ms	23900 KB	Output is correct
27	Correct	11 ms	23900 KB	Output is correct
28	Correct	11 ms	23896 KB	Output is correct
29	Correct	11 ms	23892 KB	Output is correct
30	Correct	12 ms	23796 KB	Output is correct
31	Correct	12 ms	24168 KB	Output is correct
32	Correct	11 ms	24156 KB	Output is correct
33	Correct	12 ms	23932 KB	Output is correct
34	Correct	10 ms	24156 KB	Output is correct
35	Correct	10 ms	24156 KB	Output is correct
36	Correct	12 ms	24168 KB	Output is correct
37	Correct	11 ms	24016 KB	Output is correct
38	Correct	11 ms	23900 KB	Output is correct
39	Correct	10 ms	23900 KB	Output is correct
40	Correct	11 ms	24156 KB	Output is correct
41	Correct	13 ms	23936 KB	Output is correct
42	Correct	11 ms	23900 KB	Output is correct
43	Correct	11 ms	23948 KB	Output is correct
44	Correct	11 ms	23968 KB	Output is correct
45	Correct	11 ms	24152 KB	Output is correct

Subtask #4
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	23900 KB	Output is correct
2	Correct	12 ms	23872 KB	Output is correct
3	Correct	12 ms	23900 KB	Output is correct
4	Correct	11 ms	23900 KB	Output is correct
5	Correct	11 ms	23900 KB	Output is correct
6	Correct	11 ms	23900 KB	Output is correct
7	Correct	11 ms	23728 KB	Output is correct
8	Correct	11 ms	23968 KB	Output is correct
9	Correct	12 ms	23840 KB	Output is correct
10	Correct	11 ms	23896 KB	Output is correct
11	Correct	11 ms	23968 KB	Output is correct
12	Correct	11 ms	23900 KB	Output is correct
13	Correct	11 ms	23900 KB	Output is correct
14	Correct	11 ms	23736 KB	Output is correct
15	Correct	11 ms	23900 KB	Output is correct
16	Correct	12 ms	23896 KB	Output is correct
17	Correct	11 ms	23896 KB	Output is correct
18	Correct	12 ms	23952 KB	Output is correct
19	Correct	11 ms	23900 KB	Output is correct
20	Correct	11 ms	23956 KB	Output is correct
21	Correct	11 ms	23896 KB	Output is correct
22	Correct	10 ms	23896 KB	Output is correct
23	Correct	11 ms	23900 KB	Output is correct
24	Correct	11 ms	23900 KB	Output is correct
25	Correct	11 ms	23868 KB	Output is correct
26	Correct	11 ms	23900 KB	Output is correct
27	Correct	11 ms	23900 KB	Output is correct
28	Correct	11 ms	23896 KB	Output is correct
29	Correct	11 ms	23892 KB	Output is correct
30	Correct	12 ms	23796 KB	Output is correct
31	Correct	12 ms	24168 KB	Output is correct
32	Correct	11 ms	24156 KB	Output is correct
33	Correct	12 ms	23932 KB	Output is correct
34	Correct	10 ms	24156 KB	Output is correct
35	Correct	10 ms	24156 KB	Output is correct
36	Correct	12 ms	24168 KB	Output is correct
37	Correct	11 ms	24016 KB	Output is correct
38	Correct	11 ms	23900 KB	Output is correct
39	Correct	10 ms	23900 KB	Output is correct
40	Correct	11 ms	24156 KB	Output is correct
41	Correct	13 ms	23936 KB	Output is correct
42	Correct	11 ms	23900 KB	Output is correct
43	Correct	11 ms	23948 KB	Output is correct
44	Correct	11 ms	23968 KB	Output is correct
45	Correct	11 ms	24152 KB	Output is correct
46	Correct	17 ms	29144 KB	Output is correct
47	Correct	23 ms	29944 KB	Output is correct
48	Correct	26 ms	30476 KB	Output is correct
49	Correct	25 ms	31104 KB	Output is correct
50	Correct	26 ms	30996 KB	Output is correct
51	Correct	27 ms	30664 KB	Output is correct
52	Correct	18 ms	27228 KB	Output is correct
53	Correct	16 ms	25948 KB	Output is correct
54	Correct	25 ms	29880 KB	Output is correct
55	Correct	25 ms	30812 KB	Output is correct
56	Correct	25 ms	30552 KB	Output is correct
57	Correct	20 ms	29784 KB	Output is correct
58	Correct	21 ms	30164 KB	Output is correct
59	Correct	23 ms	30628 KB	Output is correct
60	Correct	24 ms	30760 KB	Output is correct

Subtask #5
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	23900 KB	Output is correct
2	Correct	12 ms	23872 KB	Output is correct
3	Correct	12 ms	23900 KB	Output is correct
4	Correct	11 ms	23900 KB	Output is correct
5	Correct	11 ms	23900 KB	Output is correct
6	Correct	11 ms	23900 KB	Output is correct
7	Correct	11 ms	23728 KB	Output is correct
8	Correct	11 ms	23968 KB	Output is correct
9	Correct	12 ms	23840 KB	Output is correct
10	Correct	11 ms	23896 KB	Output is correct
11	Correct	11 ms	23968 KB	Output is correct
12	Correct	11 ms	23900 KB	Output is correct
13	Correct	11 ms	23900 KB	Output is correct
14	Correct	11 ms	23736 KB	Output is correct
15	Correct	11 ms	23900 KB	Output is correct
16	Correct	12 ms	23896 KB	Output is correct
17	Correct	11 ms	23896 KB	Output is correct
18	Correct	12 ms	23952 KB	Output is correct
19	Correct	11 ms	23900 KB	Output is correct
20	Correct	11 ms	23956 KB	Output is correct
21	Correct	11 ms	23896 KB	Output is correct
22	Correct	10 ms	23896 KB	Output is correct
23	Correct	11 ms	23900 KB	Output is correct
24	Correct	11 ms	23900 KB	Output is correct
25	Correct	11 ms	23868 KB	Output is correct
26	Correct	11 ms	23900 KB	Output is correct
27	Correct	11 ms	23900 KB	Output is correct
28	Correct	11 ms	23896 KB	Output is correct
29	Correct	11 ms	23892 KB	Output is correct
30	Correct	12 ms	23796 KB	Output is correct
31	Correct	12 ms	24168 KB	Output is correct
32	Correct	11 ms	24156 KB	Output is correct
33	Correct	12 ms	23932 KB	Output is correct
34	Correct	10 ms	24156 KB	Output is correct
35	Correct	10 ms	24156 KB	Output is correct
36	Correct	12 ms	24168 KB	Output is correct
37	Correct	11 ms	24016 KB	Output is correct
38	Correct	11 ms	23900 KB	Output is correct
39	Correct	10 ms	23900 KB	Output is correct
40	Correct	11 ms	24156 KB	Output is correct
41	Correct	13 ms	23936 KB	Output is correct
42	Correct	11 ms	23900 KB	Output is correct
43	Correct	11 ms	23948 KB	Output is correct
44	Correct	11 ms	23968 KB	Output is correct
45	Correct	11 ms	24152 KB	Output is correct
46	Correct	17 ms	29144 KB	Output is correct
47	Correct	23 ms	29944 KB	Output is correct
48	Correct	26 ms	30476 KB	Output is correct
49	Correct	25 ms	31104 KB	Output is correct
50	Correct	26 ms	30996 KB	Output is correct
51	Correct	27 ms	30664 KB	Output is correct
52	Correct	18 ms	27228 KB	Output is correct
53	Correct	16 ms	25948 KB	Output is correct
54	Correct	25 ms	29880 KB	Output is correct
55	Correct	25 ms	30812 KB	Output is correct
56	Correct	25 ms	30552 KB	Output is correct
57	Correct	20 ms	29784 KB	Output is correct
58	Correct	21 ms	30164 KB	Output is correct
59	Correct	23 ms	30628 KB	Output is correct
60	Correct	24 ms	30760 KB	Output is correct
61	Correct	49 ms	49344 KB	Output is correct
62	Correct	57 ms	50508 KB	Output is correct
63	Correct	77 ms	53928 KB	Output is correct
64	Correct	93 ms	57756 KB	Output is correct
65	Correct	91 ms	59988 KB	Output is correct
66	Correct	100 ms	57460 KB	Output is correct
67	Correct	78 ms	50772 KB	Output is correct
68	Correct	46 ms	37204 KB	Output is correct
69	Correct	78 ms	53584 KB	Output is correct
70	Correct	93 ms	59008 KB	Output is correct
71	Correct	81 ms	57172 KB	Output is correct
72	Correct	65 ms	54340 KB	Output is correct
73	Correct	77 ms	57032 KB	Output is correct
74	Correct	77 ms	58452 KB	Output is correct
75	Correct	84 ms	58448 KB	Output is correct

답안 #1082368

Compilation message

Subtask #1 13.0 / 13.0

Subtask #2 14.0 / 14.0

Subtask #3 10.0 / 10.0

Subtask #4 36.0 / 36.0

Subtask #5 27.0 / 27.0

Subtask #1
13.0 / 13.0

Subtask #2
14.0 / 14.0

Subtask #3
10.0 / 10.0

Subtask #4
36.0 / 36.0

Subtask #5
27.0 / 27.0