Submission #127933

#	Time	Username	Problem	Language	Result	Execution time	Memory
127933		zoooma13	Bali Sculptures (APIO15_sculpture)	C++14	21 / 100	4 ms	504 KiB

sculpture

#include <bits/stdc++.h>
using namespace std;

#define MAX_N 102

int n ,a ,b;
int y[MAX_N];
long long sum[MAX_N];

long long dpx[MAX_N][MAX_N];
long long solve(int i ,int p)
{
    if(i > n)
        return p == 0 ? 0 : (1ull<<63)-1;
    if(p <= 0)
        return (1ull<<63)-1;
    auto&ret = dpx[i][p];
    if(~ret)
        return ret;
    ret = (1ull<<63)-1;
    for(int j=i; j<=n; j++)
        ret = min(ret ,(sum[j]-sum[i-1])|solve(j+1 ,p-1));
    return ret;
}

int main()
{
    //srand(time(NULL));
    //n = 100 ,a = 5 ,b = 100;
    scanf("%d%d%d",&n,&a,&b); assert(n < MAX_N);
    for(int i=1; i<=n; i++)
        scanf("%d",&y[i]) ,sum[i] = sum[i-1]+y[i];
        //y[i] = rand()*10000+rand() ,sum[i] = sum[i-1]+y[i];

    /*vector <long long> dp(n+1) ,curr_dp(n+1);
    long long ans = (a == 1 ? sum[n] : 1e18);
    for(int i=1; i<=n; i++)
        curr_dp[i] = sum[i];
    for(int k=2; k<=b; k++){
        swap(dp ,curr_dp);

        for(int i=k; i<=n; i++)
        {
            curr_dp[i] = 1e18;
            for(int j=k; j<=i; j++)
                curr_dp[i] = min(curr_dp[i] ,(sum[i]-sum[j-1])|dp[j-1]);
        }
        if(a <= k)
            ans = min(ans ,curr_dp[n]);
    }

    printf("%lld\n",ans);*/

    long long ans2 = 1e18;
    memset(dpx ,-1 ,sizeof dpx);
    for(int i=a; i<=b; i++)
        ans2 = min(ans2 ,solve(1 ,i));

    printf("%lld\n",ans2);

}
/**
6 1 3
8 1 2 1 5 4

5 5 5
1 2 3 4 5
*/

Compilation message (stderr)

sculpture.cpp: In function 'int main()':
sculpture.cpp:30:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d",&n,&a,&b); assert(n < MAX_N);
     ~~~~~^~~~~~~~~~~~~~~~~~~
sculpture.cpp:32:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&y[i]) ,sum[i] = sum[i-1]+y[i];
         ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

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