Submission #1105555

#TimeUsernameProblemLanguageResultExecution timeMemory
1105555_rain_Bali Sculptures (APIO15_sculpture)C++14
21 / 100
151 ms32076 KiB
#include<bits/stdc++.h> using namespace std; typedef long long ll; #define name "main" const int maxlog=(int)40; const int N=(int)2000; ll arr[N+2]={}; ll ans=((ll)1<<maxlog)-1; ll dp[N+2][N+2]={}; int n,a,b; bool possible(ll limit){ memset(dp,0x3f,sizeof dp); int INF=dp[0][0]; dp[0][0]=0; for (int i=1;i<=n;++i){ ll tot=0; for (int j=i;j<=n;++j){ tot+=arr[j]; if ((tot&limit)!=tot) continue; if (a==1) dp[j][1]=min(min(dp[i-1][0],dp[i-1][1])+1,dp[j][1]); else{ for (int block=1;block<=min(i,b);++block){ dp[j][block]=min(dp[i-1][block-1]+1,dp[j][block]); } } } } if (a==1){ if (dp[n][1]<=b) return true; return false; } for (int i=a;i<=b;++i) if (dp[n][i]!=i) return false; return true; } int32_t main(){ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin>>n>>a>>b; for (int i=1;i<=n;++i) cin>>arr[i]; for (int i=maxlog-1;i>=0;--i){ if (possible(ans^((ll)1<<i))) { ans^=((ll)1<<i); } } cout<<ans; exit(0); }

Compilation message (stderr)

sculpture.cpp: In function 'bool possible(ll)':
sculpture.cpp:16:6: warning: unused variable 'INF' [-Wunused-variable]
   16 |  int INF=dp[0][0];
      |      ^~~
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