Submission #337134

#	Time	Username	Problem	Language	Result	Execution time	Memory
337134		bigDuck	Split the sequence (APIO14_sequence)	C++14	0 / 100	48 ms	6764 KiB

sequence

#include<bits/stdc++.h>
using namespace std;
#define INIT  ios_base :: sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define mp make_pair
#define pb push_back
#define ft first
#define sc second
#define ll long long
#define pii pair<int, int>
#define count_bits __builtin_popcount


int t, n, m, k, a[300010], q, l, r;
int dp[1010][210];
int p[1010];
int dir[1010][210];
vector<int> v;


int32_t main(){
INIT
scanf("%d", &n);
scanf("%d" , &k);
for(int i=1; i<=n ;i++){
    scanf("%d", &a[i]);
    p[i]=p[i-1]+a[i];
}

dp[0][0]=0;
k++;

for(int i=1; i<=n; i++){
    for(int g=0; g<=k; g++){
        dp[i][g]=-1;
    }
    for(int j=i-1; j>=0; j--){
        for(int g=0; g<k; g++){
            if(dp[j][g]==-1){continue;}
            if(dp[i][g+1]==(-1)){
                dp[i][g+1]=dp[j][g]+(p[i]-p[j])*(p[i]-p[j]);
                dir[i][g+1]=j;
            }
            else{
                    if(  (dp[j][g]+(p[i]-p[j])*(p[i]-p[j]))<dp[i][g+1] ){
                        dir[i][g+1]=j;
                    }
                dp[i][g+1]=min(dp[i][g+1], dp[j][g]+(p[i]-p[j])*(p[i]-p[j]));
            }
        }
    }
}

cout<<( ((p[n]*p[n])-dp[n][k])/2 );
cout<<"\n";
int cnt=1, cr=n;
while(cnt<k){
    v.pb(dir[cr][k-cnt+1]);
    cnt++; cr=dir[cr][k-cnt+1];
}
for(int i=k-1-1; i>=0; i--){
    cout<<v[i]<<" ";
}



return 0;
}

Compilation message (stderr)

sequence.cpp: In function 'int32_t main()':
sequence.cpp:22:6: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   22 | scanf("%d", &n);
      | ~~~~~^~~~~~~~~~
sequence.cpp:23:6: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   23 | scanf("%d" , &k);
      | ~~~~~^~~~~~~~~~~
sequence.cpp:25:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   25 |     scanf("%d", &a[i]);
      |     ~~~~~^~~~~~~~~~~~~

• Subtask 1: 0 / 11
• Subtask 2: 0 / 11
• Subtask 3: 0 / 11
• Subtask 4: 0 / 17
• Subtask 5: 0 / 21
• Subtask 6: 0 / 29