Submission #213178

#	Time	Username	Problem	Language	Result	Execution time	Memory
213178		KoalaMuch	Bali Sculptures (APIO15_sculpture)	C++14	50 / 100	106 ms	512 KiB

sculpture

#include<bits/stdc++.h>
using namespace std;
const int N = 2005;
long long dp[N];
long long a[N];
int main()
{
    long long n,l,r,fix = 0;
    scanf("%lld %lld %lld",&n,&l,&r);
    for(long long i=1;i<=n;i++)   scanf("%lld",&a[i]);
    for(long long bit=41;bit>=0;bit--)
    {
        for(long long i=1;i<=n;i++)
        {
            dp[i] = 1e9;
            long long s = 0;
            for(long long j=i;j>=1;j--)
            {
                s+=a[j];
//                if(bit==0&&i==7&&j==7)    printf("[%lld %lld %lld %lld]\n",s,s|fix,s-(s&fix),dp[j-1]);
                if(s-(s&fix)<(1ll<<bit)&&dp[j-1]+1<=r) dp[i] = min(dp[i],dp[j-1]+1);
            }
//            if(!bit)    printf("%lld %lld\n",i,dp[i]);
        }
        if(dp[n]==1e9)  fix|=(1ll<<bit);
    }
    printf("%lld\n",fix);
    return 0;
}
/*
6 1 3
8 1 2 1 5 4

8 1 4
1 2 1 1 1 0 4 6
*/

Compilation message (stderr)

sculpture.cpp: In function 'int main()':
sculpture.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld %lld %lld",&n,&l,&r);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
sculpture.cpp:10:40: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(long long i=1;i<=n;i++)   scanf("%lld",&a[i]);
                                   ~~~~~^~~~~~~~~~~~~~

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