题解 | Skew数
Skew数
https://www.nowcoder.com/practice/7b6586ac8f614aafbe2e0896e82ac0c1?tpId=40&tqId=21382&rp=1&difficulty=&judgeStatus=&tags=/question-ranking
#include <cmath>
#include <iostream>
#include <string>
using namespace std;
int main() {
string str;
long long res;
while (cin >> str) {
if (str == "0") break;
res = 0;
int n = str.size();
for (int i = 0; i < n; i++) {
res += (str[i] - '0') * (pow(2, n - i) - 1);
}
cout << res << endl;
}
return 0;
}
// 64 位输出请用 printf("%lld")
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