Submission #16823

#	Time	Username	Problem	Language	Result	Execution time	Memory
16823		kdh9949	Split the sequence (APIO14_sequence)	C++98	0 / 100	0 ms	17568 KiB

sequence

#include<stdio.h>
#include<algorithm>
using namespace std;

int n,k,mxi;
int a[100010];
int sum[100010];
int dp[10001][201];
int prev[10001][201];

void init_partsum(){
    for(int i=1;i<=n;i++)sum[i]=sum[i-1]+a[i];
}

int partsum(int s,int e){
    return (sum[e]-sum[s-1]);
}

int main()
{
    scanf("%d%d",&n,&k);
    for(int i=1;i<=n;i++)scanf("%d",a+i);
    init_partsum();
    for(int i=1;i<n;i++){
        for(int j=1;j<=k;j++){
            if(i<j)break;
            for(int q=j-1;q<i;q++){
                if(dp[i][j]<dp[q][j-1]+partsum(q+1,i)*partsum(i+1,n)){
                    dp[i][j]=dp[q][j-1]+partsum(q+1,i)*partsum(i+1,n);
                    prev[i][j]=q;
                }
            }
        }
    }
    mxi=k+1;
    for(int i=k+2;i<n;i++)if(dp[i][k]>dp[mxi][k])mxi=i;
    printf("%d\n%d",dp[mxi][k],mxi);
    for(int i=k;i>1;i--){
        mxi=prev[mxi][i];
        printf(" %d",mxi);
    }
}

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