UVA - 575 Skew Binary

UVA - 575 Skew Binary

题目大意: 按照题目要求输出即可

Sample Input

10120

200000000000000000000000000000

10

1000000000000000000000000000000

11

100

11111000001110000101101102000

0

Sample Output

44

2147483646

3

2147483647

4

7

1041110737

解题思路：

#include <iostream>
#include <cmath>
#include <cstring>
#include <cstdio>
using namespace std;

int main() {
char s[100];
int sum;
while (scanf("%s",s) != EOF && strcmp(s,"0") != 0) {
int l = strlen(s);
sum = 0;
for (int i = 0; i < l; i++) {
sum = sum + (s[i] - '0') * (pow (2, l - i) - 1);
}
printf("%d\n",sum);
}
return 0;
}