Submission #259160

# Submission time Handle Problem Language Result Execution time Memory
259160 2020-08-07T09:14:11 Z pure_mem Split the sequence (APIO14_sequence) C++14
100 / 100
1408 ms 81496 KB
#include <bits/stdc++.h>

#define ll long long
#define X first
#define Y second
#define MP make_pair
 
using namespace std;
 
const int N = 1e5 + 12;

int n, k, T, IT;
int gr[220][N];
ll pr[N], dp[2][N];

void rec(int tl, int tr, int tpl = 1, int tpr = n){
	if(tl > tr)
		return;
	int tm = (tl + tr) / 2, tp = 0;
	ll curs = -1;
	for(int i = max(tpl, IT - 1);i <= min(tm - 1, tpr);i++){
		if(dp[1 - T][i] + pr[i] * (pr[tm] - pr[i]) > curs)	
			curs = dp[1 - T][i] + pr[i] * (pr[tm] - pr[i]), tp = i;	
	}
	dp[T][tm] = curs, gr[IT][tm] = tp;
	rec(tl, tm - 1, tpl, tp);
	rec(tm + 1, tr, tp, tpr);
}

int main () {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
 
    cin >> n >> k;
    for(int i = 1;i <= n;i++){
    	cin >> pr[i];
    	pr[i] += pr[i - 1];
    }
    k += 1;
    for(int i = 2;i <= k;i++){
    	T = i & 1, IT = i;
    	rec(1, n);	
    }
    cout << dp[k & 1][n] << "\n";
    for(int j = k, pos = n;j > 1;j--){
    	cout << gr[j][pos] << " ";
    	pos = gr[j][pos];	
    }
}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB contestant found the optimal answer: 108 == 108
2 Correct 1 ms 384 KB contestant found the optimal answer: 999 == 999
3 Correct 1 ms 384 KB contestant found the optimal answer: 0 == 0
4 Correct 1 ms 384 KB contestant found the optimal answer: 1542524 == 1542524
5 Correct 1 ms 384 KB contestant found the optimal answer: 4500000000 == 4500000000
6 Correct 1 ms 384 KB contestant found the optimal answer: 1 == 1
7 Correct 0 ms 384 KB contestant found the optimal answer: 1 == 1
8 Correct 1 ms 384 KB contestant found the optimal answer: 1 == 1
9 Correct 0 ms 384 KB contestant found the optimal answer: 100400096 == 100400096
10 Correct 0 ms 384 KB contestant found the optimal answer: 900320000 == 900320000
11 Correct 1 ms 384 KB contestant found the optimal answer: 3698080248 == 3698080248
12 Correct 0 ms 384 KB contestant found the optimal answer: 3200320000 == 3200320000
13 Correct 0 ms 384 KB contestant found the optimal answer: 140072 == 140072
14 Correct 1 ms 384 KB contestant found the optimal answer: 376041456 == 376041456
15 Correct 0 ms 384 KB contestant found the optimal answer: 805 == 805
16 Correct 1 ms 384 KB contestant found the optimal answer: 900189994 == 900189994
17 Correct 0 ms 384 KB contestant found the optimal answer: 999919994 == 999919994
# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB contestant found the optimal answer: 1093956 == 1093956
2 Correct 0 ms 384 KB contestant found the optimal answer: 302460000 == 302460000
3 Correct 1 ms 640 KB contestant found the optimal answer: 122453454361 == 122453454361
4 Correct 1 ms 384 KB contestant found the optimal answer: 93663683509 == 93663683509
5 Correct 1 ms 384 KB contestant found the optimal answer: 1005304678 == 1005304678
6 Correct 1 ms 384 KB contestant found the optimal answer: 933702 == 933702
7 Correct 1 ms 512 KB contestant found the optimal answer: 25082842857 == 25082842857
8 Correct 1 ms 384 KB contestant found the optimal answer: 687136 == 687136
9 Correct 1 ms 384 KB contestant found the optimal answer: 27295930079 == 27295930079
10 Correct 1 ms 384 KB contestant found the optimal answer: 29000419931 == 29000419931
# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB contestant found the optimal answer: 610590000 == 610590000
2 Correct 0 ms 384 KB contestant found the optimal answer: 311760000 == 311760000
3 Correct 3 ms 1536 KB contestant found the optimal answer: 1989216017013 == 1989216017013
4 Correct 0 ms 384 KB contestant found the optimal answer: 1499437552673 == 1499437552673
5 Correct 2 ms 1152 KB contestant found the optimal answer: 1019625819 == 1019625819
6 Correct 2 ms 1408 KB contestant found the optimal answer: 107630884 == 107630884
7 Correct 2 ms 1536 KB contestant found the optimal answer: 475357671774 == 475357671774
8 Correct 1 ms 640 KB contestant found the optimal answer: 193556962 == 193556962
9 Correct 1 ms 512 KB contestant found the optimal answer: 482389919803 == 482389919803
10 Correct 1 ms 768 KB contestant found the optimal answer: 490686959791 == 490686959791
# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB contestant found the optimal answer: 21503404 == 21503404
2 Correct 1 ms 384 KB contestant found the optimal answer: 140412195 == 140412195
3 Correct 7 ms 2048 KB contestant found the optimal answer: 49729674225461 == 49729674225461
4 Correct 1 ms 384 KB contestant found the optimal answer: 37485571387523 == 37485571387523
5 Correct 11 ms 2048 KB contestant found the optimal answer: 679388326 == 679388326
6 Correct 8 ms 1792 KB contestant found the optimal answer: 4699030287 == 4699030287
7 Correct 8 ms 2176 KB contestant found the optimal answer: 12418819758185 == 12418819758185
8 Correct 7 ms 2048 KB contestant found the optimal answer: 31093317350 == 31093317350
9 Correct 2 ms 768 KB contestant found the optimal answer: 12194625429236 == 12194625429236
10 Correct 4 ms 1024 KB contestant found the optimal answer: 12345131038664 == 12345131038664
# Verdict Execution time Memory Grader output
1 Correct 3 ms 768 KB contestant found the optimal answer: 1818678304 == 1818678304
2 Correct 2 ms 768 KB contestant found the optimal answer: 1326260195 == 1326260195
3 Correct 67 ms 9344 KB contestant found the optimal answer: 4973126687469639 == 4973126687469639
4 Correct 2 ms 896 KB contestant found the optimal answer: 3748491676694116 == 3748491676694116
5 Correct 77 ms 6008 KB contestant found the optimal answer: 1085432199 == 1085432199
6 Correct 74 ms 6904 KB contestant found the optimal answer: 514790755404 == 514790755404
7 Correct 68 ms 7288 KB contestant found the optimal answer: 1256105310476641 == 1256105310476641
8 Correct 47 ms 6008 KB contestant found the optimal answer: 3099592898816 == 3099592898816
9 Correct 69 ms 6776 KB contestant found the optimal answer: 1241131419367412 == 1241131419367412
10 Correct 88 ms 8556 KB contestant found the optimal answer: 1243084101967798 == 1243084101967798
# Verdict Execution time Memory Grader output
1 Correct 28 ms 3832 KB contestant found the optimal answer: 19795776960 == 19795776960
2 Correct 24 ms 3840 KB contestant found the optimal answer: 19874432173 == 19874432173
3 Correct 730 ms 81496 KB contestant found the optimal answer: 497313449256899208 == 497313449256899208
4 Correct 23 ms 4352 KB contestant found the optimal answer: 374850090734572421 == 374850090734572421
5 Correct 1408 ms 81344 KB contestant found the optimal answer: 36183271951 == 36183271951
6 Correct 865 ms 57720 KB contestant found the optimal answer: 51629847150471 == 51629847150471
7 Correct 744 ms 61816 KB contestant found the optimal answer: 124074747024496432 == 124074747024496432
8 Correct 526 ms 50792 KB contestant found the optimal answer: 309959349080800 == 309959349080800
9 Correct 721 ms 57848 KB contestant found the optimal answer: 124113525649823701 == 124113525649823701
10 Correct 954 ms 73632 KB contestant found the optimal answer: 124309619349406845 == 124309619349406845