Submission #423043

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
423043	2021-06-10T16:24:20 Z	errorgorn	Cigle (COI21_cigle)	C++17	100 / 100	340 ms	67396 KB

cigle

//雪花飄飄北風嘯嘯
//天地一片蒼茫

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>
using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;
#define ll long long
#define ii pair<ll,ll>
#define iii pair<ii,ll>
#define fi first
#define se second
#define endl '\n'
#define debug(x) cout << #x << " is " << x << endl

#define pub push_back
#define pob pop_back
#define puf push_front
#define pof pop_front
#define lb lower_bound
#define ub upper_bound

#define rep(x,start,end) for(auto x=(start)-((start)>(end));x!=(end)-((start)>(end));((start)<(end)?x++:x--))
#define all(x) (x).begin(),(x).end()
#define sz(x) (int)(x).size()

#define indexed_set tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update>
//change less to less_equal for non distinct pbds, but erase will bug

mt19937 rng(chrono::system_clock::now().time_since_epoch().count());

int n;
int arr[5005];

int memo[5005][5005];

int temp[5005];
int ptemp[5005];

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin.exceptions(ios::badbit | ios::failbit);
	
	cin>>n;
	rep(x,1,n+1) cin>>arr[x];
	
	temp[0]=ptemp[0]=-1e9;
	
	rep(x,2,n){
		rep(y,1,x) temp[y]=memo[y][x-1];
		rep(y,1,x) ptemp[y]=max(ptemp[y-1],temp[y]);
		
		int b=x-1;
		int bs=0;
		int fs=0;
		int curr=0;
		int add=0;
		rep(y,x,n+1){
			if (y!=x) fs+=arr[y-1];
			while (bs<fs){
				if (b){
					curr=max(curr,temp[b]);
					bs+=arr[b--];
				}
				else break;
			}
			
			//cout<<x<<" "<<y<<" "<<b<<" "<<bs<<" "<<fs<<endl;
			if (y!=x && bs==fs){
				curr--;
				add++;
			}
			
			memo[x][y]=ptemp[b]+add;
			memo[x][y]=max(memo[x][y],curr+add);
			
			//cout<<x<<" "<<y<<" "<<memo[x][y]<<endl;
		}
	}
	
	int ans=0;
	rep(x,1,n+1) ans=max(ans,memo[x][n]);
	cout<<ans<<endl;
}

Subtask #1
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	324 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	324 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct

Subtask #2
11.0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	324 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	324 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	580 KB	Output is correct
11	Correct	1 ms	588 KB	Output is correct
12	Correct	1 ms	588 KB	Output is correct
13	Correct	1 ms	588 KB	Output is correct
14	Correct	1 ms	588 KB	Output is correct
15	Correct	1 ms	588 KB	Output is correct
16	Correct	1 ms	588 KB	Output is correct
17	Correct	1 ms	588 KB	Output is correct
18	Correct	1 ms	588 KB	Output is correct
19	Correct	1 ms	588 KB	Output is correct
20	Correct	1 ms	588 KB	Output is correct

Subtask #3
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	2764 KB	Output is correct
2	Correct	3 ms	2764 KB	Output is correct
3	Correct	3 ms	2764 KB	Output is correct
4	Correct	3 ms	2756 KB	Output is correct
5	Correct	3 ms	2764 KB	Output is correct
6	Correct	4 ms	2764 KB	Output is correct
7	Correct	4 ms	2776 KB	Output is correct
8	Correct	4 ms	2760 KB	Output is correct
9	Correct	4 ms	2764 KB	Output is correct
10	Correct	3 ms	2764 KB	Output is correct
11	Correct	4 ms	2764 KB	Output is correct
12	Correct	3 ms	2764 KB	Output is correct

Subtask #4
15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	324 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	324 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	580 KB	Output is correct
11	Correct	1 ms	588 KB	Output is correct
12	Correct	1 ms	588 KB	Output is correct
13	Correct	1 ms	588 KB	Output is correct
14	Correct	1 ms	588 KB	Output is correct
15	Correct	1 ms	588 KB	Output is correct
16	Correct	1 ms	588 KB	Output is correct
17	Correct	1 ms	588 KB	Output is correct
18	Correct	1 ms	588 KB	Output is correct
19	Correct	1 ms	588 KB	Output is correct
20	Correct	1 ms	588 KB	Output is correct
21	Correct	3 ms	2764 KB	Output is correct
22	Correct	3 ms	2764 KB	Output is correct
23	Correct	3 ms	2764 KB	Output is correct
24	Correct	3 ms	2756 KB	Output is correct
25	Correct	3 ms	2764 KB	Output is correct
26	Correct	4 ms	2764 KB	Output is correct
27	Correct	4 ms	2776 KB	Output is correct
28	Correct	4 ms	2760 KB	Output is correct
29	Correct	4 ms	2764 KB	Output is correct
30	Correct	3 ms	2764 KB	Output is correct
31	Correct	4 ms	2764 KB	Output is correct
32	Correct	3 ms	2764 KB	Output is correct
33	Correct	3 ms	2764 KB	Output is correct
34	Correct	3 ms	2764 KB	Output is correct
35	Correct	3 ms	2756 KB	Output is correct
36	Correct	4 ms	2764 KB	Output is correct
37	Correct	4 ms	2764 KB	Output is correct
38	Correct	4 ms	2764 KB	Output is correct
39	Correct	4 ms	2764 KB	Output is correct
40	Correct	4 ms	2764 KB	Output is correct
41	Correct	3 ms	2728 KB	Output is correct
42	Correct	3 ms	2764 KB	Output is correct
43	Correct	3 ms	2764 KB	Output is correct
44	Correct	4 ms	2764 KB	Output is correct
45	Correct	3 ms	2764 KB	Output is correct
46	Correct	4 ms	2764 KB	Output is correct
47	Correct	4 ms	2764 KB	Output is correct
48	Correct	4 ms	2764 KB	Output is correct
49	Correct	3 ms	2764 KB	Output is correct

Subtask #5
52.0 / 52.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	324 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	324 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	580 KB	Output is correct
11	Correct	1 ms	588 KB	Output is correct
12	Correct	1 ms	588 KB	Output is correct
13	Correct	1 ms	588 KB	Output is correct
14	Correct	1 ms	588 KB	Output is correct
15	Correct	1 ms	588 KB	Output is correct
16	Correct	1 ms	588 KB	Output is correct
17	Correct	1 ms	588 KB	Output is correct
18	Correct	1 ms	588 KB	Output is correct
19	Correct	1 ms	588 KB	Output is correct
20	Correct	1 ms	588 KB	Output is correct
21	Correct	3 ms	2764 KB	Output is correct
22	Correct	3 ms	2764 KB	Output is correct
23	Correct	3 ms	2764 KB	Output is correct
24	Correct	3 ms	2756 KB	Output is correct
25	Correct	3 ms	2764 KB	Output is correct
26	Correct	4 ms	2764 KB	Output is correct
27	Correct	4 ms	2776 KB	Output is correct
28	Correct	4 ms	2760 KB	Output is correct
29	Correct	4 ms	2764 KB	Output is correct
30	Correct	3 ms	2764 KB	Output is correct
31	Correct	4 ms	2764 KB	Output is correct
32	Correct	3 ms	2764 KB	Output is correct
33	Correct	3 ms	2764 KB	Output is correct
34	Correct	3 ms	2764 KB	Output is correct
35	Correct	3 ms	2756 KB	Output is correct
36	Correct	4 ms	2764 KB	Output is correct
37	Correct	4 ms	2764 KB	Output is correct
38	Correct	4 ms	2764 KB	Output is correct
39	Correct	4 ms	2764 KB	Output is correct
40	Correct	4 ms	2764 KB	Output is correct
41	Correct	3 ms	2728 KB	Output is correct
42	Correct	3 ms	2764 KB	Output is correct
43	Correct	3 ms	2764 KB	Output is correct
44	Correct	4 ms	2764 KB	Output is correct
45	Correct	3 ms	2764 KB	Output is correct
46	Correct	4 ms	2764 KB	Output is correct
47	Correct	4 ms	2764 KB	Output is correct
48	Correct	4 ms	2764 KB	Output is correct
49	Correct	3 ms	2764 KB	Output is correct
50	Correct	256 ms	67232 KB	Output is correct
51	Correct	261 ms	67376 KB	Output is correct
52	Correct	267 ms	67312 KB	Output is correct
53	Correct	287 ms	67392 KB	Output is correct
54	Correct	273 ms	67300 KB	Output is correct
55	Correct	262 ms	67340 KB	Output is correct
56	Correct	335 ms	67224 KB	Output is correct
57	Correct	330 ms	67272 KB	Output is correct
58	Correct	332 ms	67316 KB	Output is correct
59	Correct	326 ms	67396 KB	Output is correct
60	Correct	339 ms	67296 KB	Output is correct
61	Correct	294 ms	67232 KB	Output is correct
62	Correct	293 ms	67308 KB	Output is correct
63	Correct	324 ms	67268 KB	Output is correct
64	Correct	285 ms	67296 KB	Output is correct
65	Correct	296 ms	67300 KB	Output is correct
66	Correct	290 ms	67268 KB	Output is correct
67	Correct	278 ms	67308 KB	Output is correct
68	Correct	268 ms	67336 KB	Output is correct
69	Correct	273 ms	67244 KB	Output is correct
70	Correct	312 ms	67372 KB	Output is correct
71	Correct	340 ms	67292 KB	Output is correct
72	Correct	301 ms	67288 KB	Output is correct

Submission #423043

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 11.0 / 11.0

Subtask #3 13.0 / 13.0

Subtask #4 15.0 / 15.0

Subtask #5 52.0 / 52.0

Subtask #1
9.0 / 9.0

Subtask #2
11.0 / 11.0

Subtask #3
13.0 / 13.0

Subtask #4
15.0 / 15.0

Subtask #5
52.0 / 52.0