Submission #96946

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
96946	2019-02-12 20:01:28	Kastanda	Swap (BOI16_swap)	C++11	68 / 100	1163 ms	160308 KiB

swap

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// Borrowed.
#include<bits/stdc++.h>
using namespace std;
const int N = 4e5 + 10;
int n, l, r, A[N], R[N], rev[N];
set < int > S[N], B[N];
bitset < N > M;
inline bool Check(int id, int val)
{
    if (M[val])
        return (1);
    while (id)
    {
        if (B[id].count(val))
            return (1);
        id >>= 1;
    }
    return (0);
}
inline bool Sub(int id, int pr)
{
    while (id)
    {
        if (id == pr)
            return (1);
        id >>= 1;
    }
    return (0);
}
int main()
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

swap.cpp: In function 'int main()':
swap.cpp:32:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
swap.cpp:35:46: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &A[i]), S[i].insert(A[i]), rev[A[i]] = i;
         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 11 / 11
• Subtask 3: 27 / 27
• Subtask 4: 20 / 20
• Subtask 5: 0 / 32