Submission #72710

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
72710	2018-08-26 18:48:10	Pajaraja	Bali Sculptures (APIO15_sculpture)	C++17	100 / 100	628 ms	31720 KiB

sculpture

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#include <bits/stdc++.h>
#define MAXN 2007
using namespace std;
long long s[MAXN][MAXN],arr[MAXN];
bool g[MAXN][MAXN],ag[MAXN][MAXN],dp[MAXN][MAXN];
int dpl[MAXN];
int main()
{
  int n,a,b;
  scanf("%d%d%d",&n,&a,&b);
  for(int i=0;i<n;i++) scanf("%lld",&arr[i]);
  for(int i=0;i<n;i++) s[i][i]=arr[i];
  for(int i=0;i<n;i++) for(int j=i+1;j<=n;j++) {ag[i][j]=true; s[i][j]=s[i][j-1]+arr[j];}
  long long rez=0;
  for(int x=40;x>=0;x--)
  {
    for(int i=0;i<n;i++) for(int j=i+1;j<=n;j++) g[i][j]=(((1LL<<x)|s[i][j-1])!=s[i][j-1]) && ag[i][j];
    bool ra=false;
    if(n<=200)
    {
      for(int i=1;i<=n;i++) for(int j=1;j<=n;j++) dp[i][j]=false;
      dp[0][0]=true;
      for(int i=0;i<n;i++) for(int j=i+1;j<=n;j++) if(g[i][j]) for(int r=1;r<=n;r++) dp[j][r]=dp[j][r]||dp[i][r-1];
      for(int i=a;i<=b;i++) if(dp[n][i]) ra=true;
    }
    else
    {
      for(int i=1;i<=n;i++) dpl[i]=MAXN;
      dpl[0]=0;
      for(int i=0;i<n;i++) for(int j=i+1;j<=n;j++) if(g[i][j]) dpl[j]=min(dpl[j],dpl[i]+1);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

sculpture.cpp: In function 'int main()':
sculpture.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d",&n,&a,&b);
  ~~~~~^~~~~~~~~~~~~~~~~~~
sculpture.cpp:11:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=0;i<n;i++) scanf("%lld",&arr[i]);
                       ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 16 / 16
• Subtask 3: 21 / 21
• Subtask 4: 25 / 25
• Subtask 5: 29 / 29