Submission #1281421

#	Time	Username	Problem	Language	Result	Execution time	Memory
1281421		StefanSebez	Bali Sculptures (APIO15_sculpture)	C++20	16 / 100	2 ms	580 KiB

sculpture

#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define pb push_back
#define ll long long
#define ld long double
#define mp make_pair
void chmn(ll &x,ll y){x=min(x,y);}
void chmx(ll &x,ll y){x=max(x,y);}
void chmn(int &x,int y){x=min(x,y);}
void chmx(int &x,int y){x=max(x,y);}
const int N=2050;
const ll inf=(1LL<<60)-1;
int n,A,B,a[N];
bool dp[52][22];
int main(){
    scanf("%i%i%i",&n,&A,&B);
    for(int i=1;i<=n;i++) scanf("%i",&a[i]);
    ll ans=inf;
    /*for(int mask=0;mask<(1<<n);mask++){
        ll res=0;
        int cnt=0;
        for(ll i=0,sum=0;i<=n;i++){
            sum+=a[i];
            if(i==n||((mask>>i)&1)){
                res|=sum;
                sum=0;
                cnt++;
                if(i==n-1) break;
            }
        }
        if(A<=cnt&&cnt<=B) chmn(ans,res);
    }*/
    for(int s=0;s<(1<<9);s++){
        for(int i=0;i<=n;i++) for(int k=0;k<=B;k++) dp[i][k]=0;
        dp[0][0]=1;
        for(int i=1;i<=n;i++){
            for(int k=1;k<=B;k++){
                for(int j=i-1,sum=0;j>=0;j--){
                    sum+=a[j+1];
                    if(((sum|s)==s)&&dp[j][k-1]){dp[i][k]=1;break;}
                }
            }
        }
        for(int k=A;k<=B;k++) if(dp[n][k]){ans=s;break;}
        if(ans<inf) break;
    }
    /*for(int i=1;i<=n;i++){
        for(int k=1;k<=B;k++){
            for(int x=0;x<=512;x++){
                for(int j=i-1,sum=0;j>=0;j--){
                    sum+=a[j+1];
                    if(dp[j][k-1][x])dp[i][k][x]=1;
                }
            }
        }
    }*/
    printf("%lld\n",ans);
    return 0;
}

Compilation message (stderr)

sculpture.cpp: In function 'int main()':
sculpture.cpp:18:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |     scanf("%i%i%i",&n,&A,&B);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~
sculpture.cpp:19:32: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |     for(int i=1;i<=n;i++) scanf("%i",&a[i]);
      |                           ~~~~~^~~~~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 16 / 16
• Subtask 3: 0 / 21
• Subtask 4: 0 / 25
• Subtask 5: 0 / 29