oj.uz

Submission #328493

# Submission time Handle Problem Language Result Execution time Memory
328493 2020-11-16T18:29:11 Z ryansee Bigger segments (IZhO19_segments) C++14
37 / 100
 211 ms 117612 KB 
#include "bits/stdc++.h"
using namespace std;

#define FAST ios_base::sync_with_stdio(false); cin.tie(0);
#define pb push_back
#define eb emplace_back
#define ins insert
#define f first
#define s second
#define cbr cerr<<"hi\n"
#define mmst(x, v) memset((x), v, sizeof ((x)))
#define siz(x) ll(x.size())
#define all(x) (x).begin(), (x).end()
#define lbd(x,y) (lower_bound(all(x),y)-x.begin())
#define ubd(x,y) (upper_bound(all(x),y)-x.begin())
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());    //can be used by calling rng() or shuffle(A, A+n, rng)
inline long long rand(long long x, long long y) { return rng() % (y+1-x) + x; } //inclusivesss
string inline to_string(char c) {string s(1,c);return s;} template<typename T> inline T gcd(T a,T b){ return a==0?llabs(b):gcd(b%a,a); }

using ll=long long; 
using ld=long double;
#define FOR(i,s,e) for(ll i=s;i<=ll(e);++i)
#define DEC(i,s,e) for(ll i=s;i>=ll(e);--i)
using pi=pair<ll,ll>; using spi=pair<ll,pi>; using dpi=pair<pi,pi>; 

long long LLINF = 1e18;
int INF = 1e9+1e6;
#define MAXN (3006)
ll dp[MAXN][MAXN], n, A[MAXN], ans, mx[MAXN][MAXN];
int main() {
	FAST
	cin>>n;
	FOR(i,1,n) cin>>A[i];
	FOR(i,1,n) A[i] += A[i-1];
	for(auto&i:mx)for(auto&j:i)j=-INF;
	FOR(i,1,n) {
		FOR(j,1,i) {
			mx[i][j] = max(mx[i][j],mx[i-1][j]);
			dp[i][j] = max((ll)(j == 1 ? 1 : -INF), mx[i][j-1]+1);
			ans=max(ans,dp[i][j]);
		}
		FOR(j,1,i){
			ll more = lower_bound(A+1,A+n+1,2*A[i]-A[j-1]) - A;
			mx[more][i]=max(mx[more][i], dp[i][j]);
		}
	}
	cout<<ans<<'\n';
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 71148 KB Output is correct
2 Correct 41 ms 71148 KB Output is correct
3 Correct 41 ms 71148 KB Output is correct
4 Correct 42 ms 71148 KB Output is correct
5 Correct 47 ms 71148 KB Output is correct
6 Correct 41 ms 71148 KB Output is correct
7 Correct 42 ms 71148 KB Output is correct
8 Correct 42 ms 71148 KB Output is correct
9 Correct 41 ms 71148 KB Output is correct
10 Correct 41 ms 71148 KB Output is correct
11 Correct 41 ms 71148 KB Output is correct
12 Correct 42 ms 71148 KB Output is correct
13 Correct 43 ms 71276 KB Output is correct
14 Correct 41 ms 71148 KB Output is correct
15 Correct 46 ms 71148 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 71148 KB Output is correct
2 Correct 41 ms 71148 KB Output is correct
3 Correct 41 ms 71148 KB Output is correct
4 Correct 42 ms 71148 KB Output is correct
5 Correct 47 ms 71148 KB Output is correct
6 Correct 41 ms 71148 KB Output is correct
7 Correct 42 ms 71148 KB Output is correct
8 Correct 42 ms 71148 KB Output is correct
9 Correct 41 ms 71148 KB Output is correct
10 Correct 41 ms 71148 KB Output is correct
11 Correct 41 ms 71148 KB Output is correct
12 Correct 42 ms 71148 KB Output is correct
13 Correct 43 ms 71276 KB Output is correct
14 Correct 41 ms 71148 KB Output is correct
15 Correct 46 ms 71148 KB Output is correct
16 Correct 47 ms 74092 KB Output is correct
17 Correct 50 ms 74092 KB Output is correct
18 Correct 46 ms 74092 KB Output is correct
19 Correct 45 ms 74092 KB Output is correct
20 Correct 45 ms 74092 KB Output is correct
21 Correct 45 ms 74092 KB Output is correct
22 Correct 45 ms 73324 KB Output is correct
23 Correct 43 ms 72684 KB Output is correct
24 Correct 45 ms 74092 KB Output is correct
25 Correct 47 ms 74092 KB Output is correct
26 Correct 46 ms 74092 KB Output is correct
27 Correct 47 ms 74220 KB Output is correct
28 Correct 54 ms 74092 KB Output is correct
29 Correct 46 ms 74092 KB Output is correct
30 Correct 46 ms 74092 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 71148 KB Output is correct
2 Correct 41 ms 71148 KB Output is correct
3 Correct 41 ms 71148 KB Output is correct
4 Correct 42 ms 71148 KB Output is correct
5 Correct 47 ms 71148 KB Output is correct
6 Correct 41 ms 71148 KB Output is correct
7 Correct 42 ms 71148 KB Output is correct
8 Correct 42 ms 71148 KB Output is correct
9 Correct 41 ms 71148 KB Output is correct
10 Correct 41 ms 71148 KB Output is correct
11 Correct 41 ms 71148 KB Output is correct
12 Correct 42 ms 71148 KB Output is correct
13 Correct 43 ms 71276 KB Output is correct
14 Correct 41 ms 71148 KB Output is correct
15 Correct 46 ms 71148 KB Output is correct
16 Correct 47 ms 74092 KB Output is correct
17 Correct 50 ms 74092 KB Output is correct
18 Correct 46 ms 74092 KB Output is correct
19 Correct 45 ms 74092 KB Output is correct
20 Correct 45 ms 74092 KB Output is correct
21 Correct 45 ms 74092 KB Output is correct
22 Correct 45 ms 73324 KB Output is correct
23 Correct 43 ms 72684 KB Output is correct
24 Correct 45 ms 74092 KB Output is correct
25 Correct 47 ms 74092 KB Output is correct
26 Correct 46 ms 74092 KB Output is correct
27 Correct 47 ms 74220 KB Output is correct
28 Correct 54 ms 74092 KB Output is correct
29 Correct 46 ms 74092 KB Output is correct
30 Correct 46 ms 74092 KB Output is correct
31 Correct 209 ms 117356 KB Output is correct
32 Correct 156 ms 117356 KB Output is correct
33 Correct 183 ms 117356 KB Output is correct
34 Correct 173 ms 117356 KB Output is correct
35 Correct 211 ms 117356 KB Output is correct
36 Correct 210 ms 117356 KB Output is correct
37 Correct 157 ms 105708 KB Output is correct
38 Correct 112 ms 94828 KB Output is correct
39 Correct 206 ms 117484 KB Output is correct
40 Correct 211 ms 117516 KB Output is correct
41 Correct 181 ms 117356 KB Output is correct
42 Correct 169 ms 117516 KB Output is correct
43 Correct 187 ms 117484 KB Output is correct
44 Correct 187 ms 117412 KB Output is correct
45 Correct 187 ms 117612 KB Output is correct

Subtask #4
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 71148 KB Output is correct
2 Correct 41 ms 71148 KB Output is correct
3 Correct 41 ms 71148 KB Output is correct
4 Correct 42 ms 71148 KB Output is correct
5 Correct 47 ms 71148 KB Output is correct
6 Correct 41 ms 71148 KB Output is correct
7 Correct 42 ms 71148 KB Output is correct
8 Correct 42 ms 71148 KB Output is correct
9 Correct 41 ms 71148 KB Output is correct
10 Correct 41 ms 71148 KB Output is correct
11 Correct 41 ms 71148 KB Output is correct
12 Correct 42 ms 71148 KB Output is correct
13 Correct 43 ms 71276 KB Output is correct
14 Correct 41 ms 71148 KB Output is correct
15 Correct 46 ms 71148 KB Output is correct
16 Correct 47 ms 74092 KB Output is correct
17 Correct 50 ms 74092 KB Output is correct
18 Correct 46 ms 74092 KB Output is correct
19 Correct 45 ms 74092 KB Output is correct
20 Correct 45 ms 74092 KB Output is correct
21 Correct 45 ms 74092 KB Output is correct
22 Correct 45 ms 73324 KB Output is correct
23 Correct 43 ms 72684 KB Output is correct
24 Correct 45 ms 74092 KB Output is correct
25 Correct 47 ms 74092 KB Output is correct
26 Correct 46 ms 74092 KB Output is correct
27 Correct 47 ms 74220 KB Output is correct
28 Correct 54 ms 74092 KB Output is correct
29 Correct 46 ms 74092 KB Output is correct
30 Correct 46 ms 74092 KB Output is correct
31 Correct 209 ms 117356 KB Output is correct
32 Correct 156 ms 117356 KB Output is correct
33 Correct 183 ms 117356 KB Output is correct
34 Correct 173 ms 117356 KB Output is correct
35 Correct 211 ms 117356 KB Output is correct
36 Correct 210 ms 117356 KB Output is correct
37 Correct 157 ms 105708 KB Output is correct
38 Correct 112 ms 94828 KB Output is correct
39 Correct 206 ms 117484 KB Output is correct
40 Correct 211 ms 117516 KB Output is correct
41 Correct 181 ms 117356 KB Output is correct
42 Correct 169 ms 117516 KB Output is correct
43 Correct 187 ms 117484 KB Output is correct
44 Correct 187 ms 117412 KB Output is correct
45 Correct 187 ms 117612 KB Output is correct
46 Correct 43 ms 72428 KB Output is correct
47 Incorrect 126 ms 99068 KB Output isn't correct
48 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 71148 KB Output is correct
2 Correct 41 ms 71148 KB Output is correct
3 Correct 41 ms 71148 KB Output is correct
4 Correct 42 ms 71148 KB Output is correct
5 Correct 47 ms 71148 KB Output is correct
6 Correct 41 ms 71148 KB Output is correct
7 Correct 42 ms 71148 KB Output is correct
8 Correct 42 ms 71148 KB Output is correct
9 Correct 41 ms 71148 KB Output is correct
10 Correct 41 ms 71148 KB Output is correct
11 Correct 41 ms 71148 KB Output is correct
12 Correct 42 ms 71148 KB Output is correct
13 Correct 43 ms 71276 KB Output is correct
14 Correct 41 ms 71148 KB Output is correct
15 Correct 46 ms 71148 KB Output is correct
16 Correct 47 ms 74092 KB Output is correct
17 Correct 50 ms 74092 KB Output is correct
18 Correct 46 ms 74092 KB Output is correct
19 Correct 45 ms 74092 KB Output is correct
20 Correct 45 ms 74092 KB Output is correct
21 Correct 45 ms 74092 KB Output is correct
22 Correct 45 ms 73324 KB Output is correct
23 Correct 43 ms 72684 KB Output is correct
24 Correct 45 ms 74092 KB Output is correct
25 Correct 47 ms 74092 KB Output is correct
26 Correct 46 ms 74092 KB Output is correct
27 Correct 47 ms 74220 KB Output is correct
28 Correct 54 ms 74092 KB Output is correct
29 Correct 46 ms 74092 KB Output is correct
30 Correct 46 ms 74092 KB Output is correct
31 Correct 209 ms 117356 KB Output is correct
32 Correct 156 ms 117356 KB Output is correct
33 Correct 183 ms 117356 KB Output is correct
34 Correct 173 ms 117356 KB Output is correct
35 Correct 211 ms 117356 KB Output is correct
36 Correct 210 ms 117356 KB Output is correct
37 Correct 157 ms 105708 KB Output is correct
38 Correct 112 ms 94828 KB Output is correct
39 Correct 206 ms 117484 KB Output is correct
40 Correct 211 ms 117516 KB Output is correct
41 Correct 181 ms 117356 KB Output is correct
42 Correct 169 ms 117516 KB Output is correct
43 Correct 187 ms 117484 KB Output is correct
44 Correct 187 ms 117412 KB Output is correct
45 Correct 187 ms 117612 KB Output is correct
46 Correct 43 ms 72428 KB Output is correct
47 Incorrect 126 ms 99068 KB Output isn't correct
48 Halted 0 ms 0 KB -