oj.uz

Submission #161919

# Submission time Handle Problem Language Result Execution time Memory
161919 2019-11-05T09:59:04 Z MvC Bigger segments (IZhO19_segments) C++11
37 / 100
 536 ms 153916 KB 
#pragma GCC target("avx2")
#pragma GCC optimization("O3")
#pragma GCC optimization("unroll-loops")
#include <bits/stdc++.h>
#define rc(x) return cout<<x<<endl,0
#define pb push_back
#define mkp make_pair
#define in insert
#define er erase
#define fd find
#define fr first
#define sc second
using namespace std;
typedef long long ll;
typedef long double ld;
const ll INF=0x3f3f3f3f3f3f3f3f;
const ll llinf=(1LL<<62);
const int inf=(1<<30);
const int nmax=3e3+50;
const int mod=1e9+7;
int n,i,nr,j,t,mx[nmax];
ll a[nmax],f[nmax][nmax],pr[nmax];
vector<pair<ll,int> >vc[nmax];
vector<pair<ll,int> >::iterator it;
int main()
{
	//freopen("sol.in","r",stdin);
	//freopen("sol.out","w",stdout);
	//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
	ios_base::sync_with_stdio(false);cin.tie(0);cerr.tie(0);cout.tie(0);
	cin>>n;
	for(i=1;i<=n;i++)
	{
		cin>>a[i];
		pr[i]=pr[i-1]+a[i];
	}
	for(i=0;i<=n;i++)for(j=0;j<=n;j++)f[i][j]=llinf;
	f[0][0]=0;
	vc[0].pb(mkp(0,0));
	for(i=1;i<=n;i++)
	{
		for(j=i;j<=n;j++)
		{
			it=(upper_bound(vc[i-1].begin(),vc[i-1].end(),mkp(pr[j],inf)));
			if(it!=vc[i-1].begin())
			{
				it--;
				t=it-vc[i-1].begin();
				f[i][j]=pr[j]-pr[mx[t]];
			}
			/*for(t=j-1;t>=0;t--)
			{
				if(f[i-1][t]<=pr[j]-pr[t])
				{
					f[i][j]=pr[j]-pr[t];
					break;
				}
			}*/
			if(f[i][j]<llinf)vc[i].pb(mkp(f[i][j]+pr[j],j));
		}
		if(!vc[i].empty())
		{
			sort(vc[i].begin(),vc[i].end());
			mx[0]=vc[i][0].sc;
		}
		for(j=1;j<(int)vc[i].size();j++)mx[j]=max(mx[j-1],vc[i][j].sc);
		if(f[i][n]<llinf)nr=max(nr,i);
	}
	cout<<nr<<endl;
	return 0;
}

Compilation message

segments.cpp:2:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
 #pragma GCC optimization("O3")
 
segments.cpp:3:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
 #pragma GCC optimization("unroll-loops")

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 492 KB Output is correct
2 Correct 3 ms 492 KB Output is correct
3 Correct 2 ms 448 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 2 ms 504 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 2 ms 496 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 504 KB Output is correct
10 Correct 2 ms 448 KB Output is correct
11 Correct 2 ms 456 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 492 KB Output is correct
14 Correct 2 ms 468 KB Output is correct
15 Correct 2 ms 504 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 492 KB Output is correct
2 Correct 3 ms 492 KB Output is correct
3 Correct 2 ms 448 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 2 ms 504 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 2 ms 496 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 504 KB Output is correct
10 Correct 2 ms 448 KB Output is correct
11 Correct 2 ms 456 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 492 KB Output is correct
14 Correct 2 ms 468 KB Output is correct
15 Correct 2 ms 504 KB Output is correct
16 Correct 6 ms 4472 KB Output is correct
17 Correct 6 ms 4440 KB Output is correct
18 Correct 8 ms 4856 KB Output is correct
19 Correct 14 ms 6648 KB Output is correct
20 Correct 17 ms 7080 KB Output is correct
21 Correct 7 ms 4672 KB Output is correct
22 Correct 5 ms 3548 KB Output is correct
23 Correct 4 ms 2536 KB Output is correct
24 Correct 7 ms 4728 KB Output is correct
25 Correct 7 ms 4728 KB Output is correct
26 Correct 19 ms 7088 KB Output is correct
27 Correct 10 ms 5596 KB Output is correct
28 Correct 8 ms 4984 KB Output is correct
29 Correct 16 ms 7076 KB Output is correct
30 Correct 17 ms 6776 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 492 KB Output is correct
2 Correct 3 ms 492 KB Output is correct
3 Correct 2 ms 448 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 2 ms 504 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 2 ms 496 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 504 KB Output is correct
10 Correct 2 ms 448 KB Output is correct
11 Correct 2 ms 456 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 492 KB Output is correct
14 Correct 2 ms 468 KB Output is correct
15 Correct 2 ms 504 KB Output is correct
16 Correct 6 ms 4472 KB Output is correct
17 Correct 6 ms 4440 KB Output is correct
18 Correct 8 ms 4856 KB Output is correct
19 Correct 14 ms 6648 KB Output is correct
20 Correct 17 ms 7080 KB Output is correct
21 Correct 7 ms 4672 KB Output is correct
22 Correct 5 ms 3548 KB Output is correct
23 Correct 4 ms 2536 KB Output is correct
24 Correct 7 ms 4728 KB Output is correct
25 Correct 7 ms 4728 KB Output is correct
26 Correct 19 ms 7088 KB Output is correct
27 Correct 10 ms 5596 KB Output is correct
28 Correct 8 ms 4984 KB Output is correct
29 Correct 16 ms 7076 KB Output is correct
30 Correct 17 ms 6776 KB Output is correct
31 Correct 74 ms 72288 KB Output is correct
32 Correct 76 ms 72468 KB Output is correct
33 Correct 107 ms 77432 KB Output is correct
34 Correct 521 ms 134260 KB Output is correct
35 Correct 531 ms 153860 KB Output is correct
36 Correct 99 ms 75896 KB Output is correct
37 Correct 81 ms 62184 KB Output is correct
38 Correct 53 ms 41976 KB Output is correct
39 Correct 98 ms 75836 KB Output is correct
40 Correct 98 ms 76024 KB Output is correct
41 Correct 536 ms 153876 KB Output is correct
42 Correct 401 ms 137308 KB Output is correct
43 Correct 176 ms 88932 KB Output is correct
44 Correct 525 ms 153916 KB Output is correct
45 Correct 505 ms 150900 KB Output is correct

Subtask #4
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 492 KB Output is correct
2 Correct 3 ms 492 KB Output is correct
3 Correct 2 ms 448 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 2 ms 504 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 2 ms 496 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 504 KB Output is correct
10 Correct 2 ms 448 KB Output is correct
11 Correct 2 ms 456 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 492 KB Output is correct
14 Correct 2 ms 468 KB Output is correct
15 Correct 2 ms 504 KB Output is correct
16 Correct 6 ms 4472 KB Output is correct
17 Correct 6 ms 4440 KB Output is correct
18 Correct 8 ms 4856 KB Output is correct
19 Correct 14 ms 6648 KB Output is correct
20 Correct 17 ms 7080 KB Output is correct
21 Correct 7 ms 4672 KB Output is correct
22 Correct 5 ms 3548 KB Output is correct
23 Correct 4 ms 2536 KB Output is correct
24 Correct 7 ms 4728 KB Output is correct
25 Correct 7 ms 4728 KB Output is correct
26 Correct 19 ms 7088 KB Output is correct
27 Correct 10 ms 5596 KB Output is correct
28 Correct 8 ms 4984 KB Output is correct
29 Correct 16 ms 7076 KB Output is correct
30 Correct 17 ms 6776 KB Output is correct
31 Correct 74 ms 72288 KB Output is correct
32 Correct 76 ms 72468 KB Output is correct
33 Correct 107 ms 77432 KB Output is correct
34 Correct 521 ms 134260 KB Output is correct
35 Correct 531 ms 153860 KB Output is correct
36 Correct 99 ms 75896 KB Output is correct
37 Correct 81 ms 62184 KB Output is correct
38 Correct 53 ms 41976 KB Output is correct
39 Correct 98 ms 75836 KB Output is correct
40 Correct 98 ms 76024 KB Output is correct
41 Correct 536 ms 153876 KB Output is correct
42 Correct 401 ms 137308 KB Output is correct
43 Correct 176 ms 88932 KB Output is correct
44 Correct 525 ms 153916 KB Output is correct
45 Correct 505 ms 150900 KB Output is correct
46 Runtime error 15 ms 1144 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 492 KB Output is correct
2 Correct 3 ms 492 KB Output is correct
3 Correct 2 ms 448 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 2 ms 504 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 2 ms 496 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 504 KB Output is correct
10 Correct 2 ms 448 KB Output is correct
11 Correct 2 ms 456 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 492 KB Output is correct
14 Correct 2 ms 468 KB Output is correct
15 Correct 2 ms 504 KB Output is correct
16 Correct 6 ms 4472 KB Output is correct
17 Correct 6 ms 4440 KB Output is correct
18 Correct 8 ms 4856 KB Output is correct
19 Correct 14 ms 6648 KB Output is correct
20 Correct 17 ms 7080 KB Output is correct
21 Correct 7 ms 4672 KB Output is correct
22 Correct 5 ms 3548 KB Output is correct
23 Correct 4 ms 2536 KB Output is correct
24 Correct 7 ms 4728 KB Output is correct
25 Correct 7 ms 4728 KB Output is correct
26 Correct 19 ms 7088 KB Output is correct
27 Correct 10 ms 5596 KB Output is correct
28 Correct 8 ms 4984 KB Output is correct
29 Correct 16 ms 7076 KB Output is correct
30 Correct 17 ms 6776 KB Output is correct
31 Correct 74 ms 72288 KB Output is correct
32 Correct 76 ms 72468 KB Output is correct
33 Correct 107 ms 77432 KB Output is correct
34 Correct 521 ms 134260 KB Output is correct
35 Correct 531 ms 153860 KB Output is correct
36 Correct 99 ms 75896 KB Output is correct
37 Correct 81 ms 62184 KB Output is correct
38 Correct 53 ms 41976 KB Output is correct
39 Correct 98 ms 75836 KB Output is correct
40 Correct 98 ms 76024 KB Output is correct
41 Correct 536 ms 153876 KB Output is correct
42 Correct 401 ms 137308 KB Output is correct
43 Correct 176 ms 88932 KB Output is correct
44 Correct 525 ms 153916 KB Output is correct
45 Correct 505 ms 150900 KB Output is correct
46 Runtime error 15 ms 1144 KB Execution killed with signal 11 (could be triggered by violating memory limits)
47 Halted 0 ms 0 KB -