题解 | 求最大连续bit数
#include <bitset>
#include <iostream>
using namespace std;
int main() {
int n;
cin >> n;
bitset<32> bs(n);
string n_str = bs.to_string();
// 双指针，贪心
int left = 0;
int right = 0;
int max_num1 = 0;
for (int i = 0; i < n_str.size(); i ++) {
if (n_str[i] == '0') {
continue;
} else {
left = i;
right = i;
while (n_str[right] != '0' && right < n_str.size()) {
right ++;
}
int len = right - left;
if (len >= max_num1) {
max_num1 = len;
}
i = right;
}
}
cout << max_num1 << endl;
}
// 64 位输出请用 printf("%lld")
