Submission #197040

# Submission time Handle Problem Language Result Execution time Memory
197040 2020-01-18T09:25:58 Z mario05092929 Split the sequence (APIO14_sequence) C++11
100 / 100
1673 ms 81968 KB
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int n,k,p[100005];
ll sum[100005],d[2][100005];
int go[205][100005];

void f(int now,int l,int r,int rl,int rr) {
    if(l > r) return;
    int x;
    ll t;
    x = (l + r) >> 1;
    d[now%2][x] = -1;
    for(int i = max(x,rl);i <= rr;i++) {
        t = d[(now+1) % 2][i+1]+(sum[x]-sum[i+1])*sum[i+1];
        if(t > d[now % 2][x]) {
            d[now % 2][x] = t;
            go[now][x] = i;
        }
    }
    f(now,l,x-1,rl,go[now][x]);
    f(now,x+1,r,go[now][x],rr);
}

void printTrack(int now,int x)
{
    if(now == 0) return;
    printf("%d ",go[now][x]);
    printTrack(now-1,go[now][x]+1);
}

int main() {
    scanf("%d %d",&n,&k);
    for(int i = 1;i <= n;i++) {
        scanf("%d",&p[i]);
    }
    for(int i = n;i >= 1;i--) {
        sum[i] = sum[i+1]+p[i];
    }
    for(int i = 1;i <= k;i++) {
        f(i,1,n,1,n);
    }
    printf("%lld\n",d[k%2][1]);
    printTrack(k,1);
}

Compilation message

sequence.cpp: In function 'int main()':
sequence.cpp:33:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&n,&k);
     ~~~~~^~~~~~~~~~~~~~~
sequence.cpp:35:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&p[i]);
         ~~~~~^~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 0 ms 376 KB contestant found the optimal answer: 108 == 108
2 Correct 2 ms 380 KB contestant found the optimal answer: 999 == 999
3 Correct 2 ms 376 KB contestant found the optimal answer: 0 == 0
4 Correct 2 ms 376 KB contestant found the optimal answer: 1542524 == 1542524
5 Correct 2 ms 376 KB contestant found the optimal answer: 4500000000 == 4500000000
6 Correct 4 ms 380 KB contestant found the optimal answer: 1 == 1
7 Correct 2 ms 504 KB contestant found the optimal answer: 1 == 1
8 Correct 0 ms 376 KB contestant found the optimal answer: 1 == 1
9 Correct 1 ms 376 KB contestant found the optimal answer: 100400096 == 100400096
10 Correct 1 ms 376 KB contestant found the optimal answer: 900320000 == 900320000
11 Correct 2 ms 376 KB contestant found the optimal answer: 3698080248 == 3698080248
12 Correct 2 ms 376 KB contestant found the optimal answer: 3200320000 == 3200320000
13 Correct 2 ms 380 KB contestant found the optimal answer: 140072 == 140072
14 Correct 2 ms 376 KB contestant found the optimal answer: 376041456 == 376041456
15 Correct 2 ms 376 KB contestant found the optimal answer: 805 == 805
16 Correct 2 ms 376 KB contestant found the optimal answer: 900189994 == 900189994
17 Correct 2 ms 376 KB contestant found the optimal answer: 999919994 == 999919994
# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB contestant found the optimal answer: 1093956 == 1093956
2 Correct 3 ms 376 KB contestant found the optimal answer: 302460000 == 302460000
3 Correct 2 ms 504 KB contestant found the optimal answer: 122453454361 == 122453454361
4 Correct 2 ms 376 KB contestant found the optimal answer: 93663683509 == 93663683509
5 Correct 2 ms 376 KB contestant found the optimal answer: 1005304678 == 1005304678
6 Correct 7 ms 376 KB contestant found the optimal answer: 933702 == 933702
7 Correct 2 ms 504 KB contestant found the optimal answer: 25082842857 == 25082842857
8 Correct 2 ms 376 KB contestant found the optimal answer: 687136 == 687136
9 Correct 2 ms 376 KB contestant found the optimal answer: 27295930079 == 27295930079
10 Correct 2 ms 376 KB contestant found the optimal answer: 29000419931 == 29000419931
# Verdict Execution time Memory Grader output
1 Correct 2 ms 404 KB contestant found the optimal answer: 610590000 == 610590000
2 Correct 2 ms 376 KB contestant found the optimal answer: 311760000 == 311760000
3 Correct 3 ms 1400 KB contestant found the optimal answer: 1989216017013 == 1989216017013
4 Correct 2 ms 376 KB contestant found the optimal answer: 1499437552673 == 1499437552673
5 Correct 3 ms 1144 KB contestant found the optimal answer: 1019625819 == 1019625819
6 Correct 4 ms 1272 KB contestant found the optimal answer: 107630884 == 107630884
7 Correct 4 ms 1400 KB contestant found the optimal answer: 475357671774 == 475357671774
8 Correct 3 ms 632 KB contestant found the optimal answer: 193556962 == 193556962
9 Correct 2 ms 504 KB contestant found the optimal answer: 482389919803 == 482389919803
10 Correct 3 ms 504 KB contestant found the optimal answer: 490686959791 == 490686959791
# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB contestant found the optimal answer: 21503404 == 21503404
2 Correct 1 ms 504 KB contestant found the optimal answer: 140412195 == 140412195
3 Correct 11 ms 2168 KB contestant found the optimal answer: 49729674225461 == 49729674225461
4 Correct 3 ms 404 KB contestant found the optimal answer: 37485571387523 == 37485571387523
5 Correct 14 ms 2168 KB contestant found the optimal answer: 679388326 == 679388326
6 Correct 12 ms 1912 KB contestant found the optimal answer: 4699030287 == 4699030287
7 Correct 12 ms 2040 KB contestant found the optimal answer: 12418819758185 == 12418819758185
8 Correct 10 ms 2040 KB contestant found the optimal answer: 31093317350 == 31093317350
9 Correct 4 ms 760 KB contestant found the optimal answer: 12194625429236 == 12194625429236
10 Correct 7 ms 1144 KB contestant found the optimal answer: 12345131038664 == 12345131038664
# Verdict Execution time Memory Grader output
1 Correct 6 ms 760 KB contestant found the optimal answer: 1818678304 == 1818678304
2 Correct 1 ms 760 KB contestant found the optimal answer: 1326260195 == 1326260195
3 Correct 92 ms 9404 KB contestant found the optimal answer: 4973126687469639 == 4973126687469639
4 Correct 6 ms 760 KB contestant found the optimal answer: 3748491676694116 == 3748491676694116
5 Correct 98 ms 5816 KB contestant found the optimal answer: 1085432199 == 1085432199
6 Correct 87 ms 6776 KB contestant found the optimal answer: 514790755404 == 514790755404
7 Correct 93 ms 7260 KB contestant found the optimal answer: 1256105310476641 == 1256105310476641
8 Correct 67 ms 6084 KB contestant found the optimal answer: 3099592898816 == 3099592898816
9 Correct 86 ms 6776 KB contestant found the optimal answer: 1241131419367412 == 1241131419367412
10 Correct 108 ms 8628 KB contestant found the optimal answer: 1243084101967798 == 1243084101967798
# Verdict Execution time Memory Grader output
1 Correct 43 ms 4480 KB contestant found the optimal answer: 19795776960 == 19795776960
2 Correct 43 ms 4452 KB contestant found the optimal answer: 19874432173 == 19874432173
3 Correct 1022 ms 81968 KB contestant found the optimal answer: 497313449256899208 == 497313449256899208
4 Correct 33 ms 4728 KB contestant found the optimal answer: 374850090734572421 == 374850090734572421
5 Correct 1673 ms 81704 KB contestant found the optimal answer: 36183271951 == 36183271951
6 Correct 1046 ms 58176 KB contestant found the optimal answer: 51629847150471 == 51629847150471
7 Correct 1028 ms 62380 KB contestant found the optimal answer: 124074747024496432 == 124074747024496432
8 Correct 758 ms 51248 KB contestant found the optimal answer: 309959349080800 == 309959349080800
9 Correct 935 ms 58356 KB contestant found the optimal answer: 124113525649823701 == 124113525649823701
10 Correct 1183 ms 73904 KB contestant found the optimal answer: 124309619349406845 == 124309619349406845