q11p1.cp

#include <iostream>
#include <cstdlib>
#include <string>
#include <fstream>
#include <cmath>
#include <vector>
using namespace std;

float desviacion( vector<int> v, int tam, int suma){
  float desviacion;
  int i;
  float Suma_dif =0.0;
    float prom = promedio(suma, tam);
  for (i=0; i < tam;i++ ){
    Suma_dif += ((v[i] -prom) *(v[i] - prom));
  }
  desviacion = sqrt(Suma_dif/tam);
  return desviacion;
}

float promedio(float sum, int lines){
  float promedio;
  promedio=sum/(lines);
  return promedio;
}

void readNumbers(string namefile){
  ifstream file (namefile); 
  string line;
  vector<int> number;
  int line_number=0, suma =0;
  if (file.is_open()){
    while (getline(file, line)){
      int x = atoi(line.c_str());
      number.push_back(x); 
      suma += number [line_number];
      line_number++;
    }
  }
  cout << "The total of the values is "<< suma << endl;
  cout << "La suma total es:  "<< line_number << endl;
  cout << "El promedio es:  "<< promedio(suma,line_number) << endl;
  cout << "La desviacion estandar es " << desviacion(number, line_number, suma) <<  endl;
}

int main(){
  readNumbers("random_numbers.txt");
  return 0;
}