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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. int na10(string dana) {
  6.     int pom = 0;
  7.     int dl = dana.length();
  8.     for (int i = 0; i < dl; i++) {
  9.     	int x = int(dana[dl-i-1]) - 48;
  10.     	pom = pom + x * pow(2, i);
  11.   }
  12.   return pom;
  13. }
  14.  
  15.  int main() {
  16.    	cout << na10("101010") << endl;
  17.    	cout << na10("110101") << endl;
  18.    	return 0;
  19. }
Success #stdin #stdout 0.01s 5308KB
comments (?)
stdin 
1
2
10
42
11
stdout 
42
53
https://ideone.com/DuHfOU
language:
C++ 4.3.2 (gcc-4.3.2)
created:
7 days ago
visibility:
public

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