#include #include using namespace std; using LL = long long; using ULL = unsigned long long; #define rep(i,n) for(int i=0; i<(n); i++) int N,K; LL A[300]; LL dp[301][301][301]; int main(){ cin>>N>>K; rep(i,N) cin>>A[i]; rep(i,K+1) rep(l,N+1) rep(r,N+1) dp[i][l][r]=-1000000000000; rep(i,N) dp[K][i+1][i]=dp[K][i][i+1]=A[i]*K; for(int k=K; k>=1; k--) for(int l=0; l<=N; l++) for(int r=0; r<=N; r++){ if(k>=2) if(abs(l-r)>=2) dp[k-2][l][r] = max(dp[k-2][l][r],dp[k][l][r]); if(l<=r){ if(r!=N) dp[k-1][l][r+1] = max(dp[k-1][l][r+1],dp[k][l][r]+A[r]*(k-1)); } else{ if(r!=0) dp[k-1][l][r-1] = max(dp[k-1][l][r-1],dp[k][l][r]+A[r-1]*(k-1)); } if(abs(r-l)>=2) if(k>=abs(r-l)-1) dp[k-abs(r-l)+1][r][l] = max(dp[k-abs(r-l)+1][r][l], dp[k][l][r]); } rep(i,N){ LL ans=-1000000000000; for(int k=0; k<=K; k++){ if(i+k=0) for(int r=i+1; r<=N; r++) ans = max(ans,dp[k][r][i-k]); } cout<