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  1. #include <iostream>
  2. 	#include <cmath>
  3. 	#include <string>
  4. 	#include <bitset>
  5.  
  6. 	using namespace std;
  7.  
  8. 	void Compress(string, int *, int);
  9. 	float calcAverage(int *, int);
  10.  
  11. 	int main(){
  12. 		const static int bitLength=8;
  13.  
  14. 		int *data = new int[int(pow(2,bitLength))];//declare memory
  15.  
  16. 		for(int i=0; i<pow(2,bitLength); i++){//cycle through each binary item
  17. 			data[i]=bitLength;
  18. 			Compress(std::bitset<bitLength>( i ).to_string(), data, i);
  19.  
  20. 			//uncomment the line underneath to see workings
  21. 			//cout << std::bitset<bitLength>( i ).to_string() << " Has Length of " << data[i] << ", ";
  22. 		}
  23.  
  24. 		int Average = calcAverage(data, int(pow(2,bitLength)));
  25.  
  26. 		cout << "Average length is " << Average << " Over " << pow(2,bitLength) << ' ' << bitLength << " bit numbers"<< endl;
  27.  
  28.  
  29. 		return 0;
  30. 	}
  31.  
  32. 	void Compress(string in, int *data, int upTo){
  33. 		char current='z';
  34. 		for(int i=0; i<in.length(); i++){
  35. 			if(in[i] == current){
  36. 				data[upTo]--;
  37. 			}else{
  38. 				data[upTo]++;
  39. 				current=in[i];
  40. 			}
  41. 		}
  42. 	}
  43.  
  44. 	float calcAverage(int *Data, int arraySize){
  45. 		int Total=0;
  46. 		for(int i=0; i<arraySize; i++){
  47. 			Total+=Data[i];
  48. 		}
  49.  
  50. 		return float(Total/arraySize);
  51. 	}
Success #stdin #stdout 0s 3228KB
comments (?)
stdin 
Standard input is empty
stdout 
Average length is 9 Over 256 8 bit numbers
https://ideone.com/Q1YlBY
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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