제출 #105816

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
105816		Kastanda	Bali Sculptures (APIO15_sculpture)	C++11	100 / 100	144 ms	512 KiB

sculpture

#include<bits/stdc++.h>
using namespace std;
const int N = 2020, N2 = 109;
int n, a, b, A[N], dp[N];
bitset < N2 > pd[N2];
inline bool Solve(long long Mask, int tp)
{
    if (!tp)
    {
        dp[0] = 0;
        for (int i = 1; i <= n; i++)
        {
            long long sum = A[i]; dp[i] = n + 1;
            for (int j = i - 1; j >= 0; sum += A[j], j --)
                if ((Mask & sum) == sum)
                    dp[i] = min(dp[i], dp[j] + 1);
        }
        return (dp[n] <= b);
    }
    pd[0][0] = 1;
    for (int i = 1; i <= n; i++)
    {
        long long sum = A[i]; pd[i] = 0;
        for (int j = i - 1; j >= 0; sum += A[j], j --)
            if ((Mask & sum) == sum)
                pd[i] |= (pd[j] << 1);
    }
    for (int i = a; i <= b; i++)
        if (pd[n][i])
            return 1;
    return 0;
}
int main()
{
    scanf("%d%d%d", &n, &a, &b);
    for (int i = 1; i <= n; i++)
        scanf("%d", &A[i]);
    long long Mn = 0;
    for (int i = 45; ~ i; i --)
        if (!Solve(Mn | ((1LL << i) - 1), a > 1))
            Mn |= 1LL << i;
    return !printf("%lld\n", Mn);
}

컴파일 시 표준 에러 (stderr) 메시지

sculpture.cpp: In function 'int main()':
sculpture.cpp:35:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d", &n, &a, &b);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~
sculpture.cpp:37:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &A[i]);
         ~~~~~^~~~~~~~~~~~~

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