Submission #37576

# Submission time Handle Problem Language Result Execution time Memory
37576 2017-12-26T07:51:45 Z mirbek01 Split the sequence (APIO14_sequence) C++14
100 / 100
1166 ms 82880 KB
# include <bits/stdc++.h>

# define pb push_back
# define fr first
# define sc second
# define mk make_pair

using namespace std;

const int inf = 1e9 + 7;
const int N = 1e5 + 5;

typedef long long ll;

int n, k, p[201][N];
ll pref[N];
ll dp[2][N];

ll get(int l, int r)
{
      return pref[l] * (pref[r] - pref[l]);
}

void dv(int k, int l, int r, int opl, int opr)
{
      if(l > r) return ;

      int md = (l + r) >> 1, kk = 1 - (k % 2);
      p[k][md] = opl;
      for(int i = opl; i <= min(md - 1, opr); i ++)
      {
            ll now = dp[kk][i] + get(i, md);
            if(dp[k % 2][md] <= now)
            {
                  dp[k % 2][md] = now;
                  p[k][md] = i;
            }
      }

      dv(k, l, md - 1, opl, p[k][md]);
      dv(k, md + 1, r, p[k][md], opr);
}

int main()
{
      scanf("%d %d", &n, &k);

      for(int i = 1; i <= n; i ++)
      {
            scanf("%lld", &pref[i]);
            pref[i] += pref[i - 1];
      }

      for(int i = 1; i <= k; i ++)
            dv(i, i, n, i, n);

      cout << dp[k % 2][n] << endl;

      for(int i = k; i >= 1; i --)
      {
            printf("%d ", p[i][n]);
            n = p[i][n];
      }
}

Compilation message

sequence.cpp: In function 'int main()':
sequence.cpp:46:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
       scanf("%d %d", &n, &k);
                             ^
sequence.cpp:50:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%lld", &pref[i]);
                                    ^
# Verdict Execution time Memory Grader output
1 Correct 0 ms 82880 KB contestant found the optimal answer: 108 == 108
2 Correct 0 ms 82880 KB contestant found the optimal answer: 999 == 999
3 Correct 0 ms 82880 KB contestant found the optimal answer: 0 == 0
4 Correct 0 ms 82880 KB contestant found the optimal answer: 1542524 == 1542524
5 Correct 0 ms 82880 KB contestant found the optimal answer: 4500000000 == 4500000000
6 Correct 0 ms 82880 KB contestant found the optimal answer: 1 == 1
7 Correct 0 ms 82880 KB contestant found the optimal answer: 1 == 1
8 Correct 0 ms 82880 KB contestant found the optimal answer: 1 == 1
9 Correct 0 ms 82880 KB contestant found the optimal answer: 100400096 == 100400096
10 Correct 0 ms 82880 KB contestant found the optimal answer: 900320000 == 900320000
11 Correct 0 ms 82880 KB contestant found the optimal answer: 3698080248 == 3698080248
12 Correct 0 ms 82880 KB contestant found the optimal answer: 3200320000 == 3200320000
13 Correct 0 ms 82880 KB contestant found the optimal answer: 140072 == 140072
14 Correct 0 ms 82880 KB contestant found the optimal answer: 376041456 == 376041456
15 Correct 0 ms 82880 KB contestant found the optimal answer: 805 == 805
16 Correct 0 ms 82880 KB contestant found the optimal answer: 900189994 == 900189994
17 Correct 0 ms 82880 KB contestant found the optimal answer: 999919994 == 999919994
# Verdict Execution time Memory Grader output
1 Correct 0 ms 82880 KB contestant found the optimal answer: 1093956 == 1093956
2 Correct 0 ms 82880 KB contestant found the optimal answer: 302460000 == 302460000
3 Correct 0 ms 82880 KB contestant found the optimal answer: 122453454361 == 122453454361
4 Correct 0 ms 82880 KB contestant found the optimal answer: 93663683509 == 93663683509
5 Correct 0 ms 82880 KB contestant found the optimal answer: 1005304678 == 1005304678
6 Correct 0 ms 82880 KB contestant found the optimal answer: 933702 == 933702
7 Correct 0 ms 82880 KB contestant found the optimal answer: 25082842857 == 25082842857
8 Correct 0 ms 82880 KB contestant found the optimal answer: 687136 == 687136
9 Correct 0 ms 82880 KB contestant found the optimal answer: 27295930079 == 27295930079
10 Correct 0 ms 82880 KB contestant found the optimal answer: 29000419931 == 29000419931
# Verdict Execution time Memory Grader output
1 Correct 0 ms 82880 KB contestant found the optimal answer: 610590000 == 610590000
2 Correct 0 ms 82880 KB contestant found the optimal answer: 311760000 == 311760000
3 Correct 0 ms 82880 KB contestant found the optimal answer: 1989216017013 == 1989216017013
4 Correct 0 ms 82880 KB contestant found the optimal answer: 1499437552673 == 1499437552673
5 Correct 0 ms 82880 KB contestant found the optimal answer: 1019625819 == 1019625819
6 Correct 0 ms 82880 KB contestant found the optimal answer: 107630884 == 107630884
7 Correct 0 ms 82880 KB contestant found the optimal answer: 475357671774 == 475357671774
8 Correct 0 ms 82880 KB contestant found the optimal answer: 193556962 == 193556962
9 Correct 0 ms 82880 KB contestant found the optimal answer: 482389919803 == 482389919803
10 Correct 0 ms 82880 KB contestant found the optimal answer: 490686959791 == 490686959791
# Verdict Execution time Memory Grader output
1 Correct 0 ms 82880 KB contestant found the optimal answer: 21503404 == 21503404
2 Correct 0 ms 82880 KB contestant found the optimal answer: 140412195 == 140412195
3 Correct 6 ms 82880 KB contestant found the optimal answer: 49729674225461 == 49729674225461
4 Correct 0 ms 82880 KB contestant found the optimal answer: 37485571387523 == 37485571387523
5 Correct 9 ms 82880 KB contestant found the optimal answer: 679388326 == 679388326
6 Correct 6 ms 82880 KB contestant found the optimal answer: 4699030287 == 4699030287
7 Correct 9 ms 82880 KB contestant found the optimal answer: 12418819758185 == 12418819758185
8 Correct 6 ms 82880 KB contestant found the optimal answer: 31093317350 == 31093317350
9 Correct 0 ms 82880 KB contestant found the optimal answer: 12194625429236 == 12194625429236
10 Correct 3 ms 82880 KB contestant found the optimal answer: 12345131038664 == 12345131038664
# Verdict Execution time Memory Grader output
1 Correct 0 ms 82880 KB contestant found the optimal answer: 1818678304 == 1818678304
2 Correct 3 ms 82880 KB contestant found the optimal answer: 1326260195 == 1326260195
3 Correct 63 ms 82880 KB contestant found the optimal answer: 4973126687469639 == 4973126687469639
4 Correct 3 ms 82880 KB contestant found the optimal answer: 3748491676694116 == 3748491676694116
5 Correct 59 ms 82880 KB contestant found the optimal answer: 1085432199 == 1085432199
6 Correct 63 ms 82880 KB contestant found the optimal answer: 514790755404 == 514790755404
7 Correct 89 ms 82880 KB contestant found the optimal answer: 1256105310476641 == 1256105310476641
8 Correct 56 ms 82880 KB contestant found the optimal answer: 3099592898816 == 3099592898816
9 Correct 59 ms 82880 KB contestant found the optimal answer: 1241131419367412 == 1241131419367412
10 Correct 69 ms 82880 KB contestant found the optimal answer: 1243084101967798 == 1243084101967798
# Verdict Execution time Memory Grader output
1 Correct 29 ms 82880 KB contestant found the optimal answer: 19795776960 == 19795776960
2 Correct 26 ms 82880 KB contestant found the optimal answer: 19874432173 == 19874432173
3 Correct 833 ms 82880 KB contestant found the optimal answer: 497313449256899208 == 497313449256899208
4 Correct 26 ms 82880 KB contestant found the optimal answer: 374850090734572421 == 374850090734572421
5 Correct 1166 ms 82880 KB contestant found the optimal answer: 36183271951 == 36183271951
6 Correct 703 ms 82880 KB contestant found the optimal answer: 51629847150471 == 51629847150471
7 Correct 853 ms 82880 KB contestant found the optimal answer: 124074747024496432 == 124074747024496432
8 Correct 596 ms 82880 KB contestant found the optimal answer: 309959349080800 == 309959349080800
9 Correct 706 ms 82880 KB contestant found the optimal answer: 124113525649823701 == 124113525649823701
10 Correct 819 ms 82880 KB contestant found the optimal answer: 124309619349406845 == 124309619349406845