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bitset效率低点。。水果。。#include <stdio.h>
#include <string.h>
#include <algorithm>
#include <bitset>
using namespace std;
int main()
{
int i, cnt, n;
while (scanf("%d", &n), n)
{
bitset<32> b1(n);
cnt = b1.count(); // 二进制位为1的个数
for (i = n+1; ; i++)
{
bitset<32> b2(i);
if (cnt == b2.count())
break;
}
printf("%d\n", i);
}
return 0;
}
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