Submission #49403

#TimeUsernameProblemLanguageResultExecution timeMemory
49403okaybody10Bali Sculptures (APIO15_sculpture)C++11
100 / 100
148 ms2576 KiB
#include <bits/stdc++.h> using namespace std; typedef long long ll; const int N=2007; ll partsum[N]; bool dp2[N][N]; int n,A,B,dp[N],bit[60]; bool solve() { ll val=0; for(int i=0;i<44;i++) val+=bit[i]*(1LL<<i); if(A==1) { dp[0]=0; for(int i=1;i<=n;i++) { dp[i]=N; for(int j=0;j<i;j++) { if(((partsum[i]-partsum[j]) | val)== val) dp[i]=min(dp[i],dp[j]+1); } } if(dp[n]<=B) return true; return false; } dp2[0][0]=true; for(int i=1;i<=n;i++) dp2[i][0]=false; for(int i=1;i<=B;i++) dp2[0][i]=false; for(int i=1;i<=n;i++) { for(int j=1;j<=B;j++) { dp2[i][j]=false; for(int k=0;k<i;k++) { if(dp2[k][j-1] && ((partsum[i]-partsum[k])| val) == val) { dp2[i][j]=true; break; } } } } for(int i=A;i<=B;i++) if(dp2[n][i]) return true; return false; } int main() { cin>>n>>A>>B; for(int i=1,x;i<=n;i++) cin>>x, partsum[i]=partsum[i-1]+x; for(int i=0;i<44;i++) bit[i]=1; for(int i=43;i>=0;i--) { bit[i]=0; bool ok=solve(); if(!ok) bit[i]=1; } ll res=0; for(int i=0;i<44;i++) res+=bit[i]*(1LL<<i); cout<<res<<endl; }
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