Exercice langage C corrigé arguments

#include 

using namespace std;

int main(int argc, char **argv) {
  if (argc < 3) {
    cout << "Le programme a besoin de deux arguments." << endl;
    return 0;
  }

  int a = atoi(argv[1]);
  int b = atoi(argv[2]);

  cout << a << " + " << b << " = " << a+b << endl;
  return 0;
}
#include 

using namespace std;

int main(int argc, char **argv) {
  if (argc < 3) {
    cout << "Le programme a besoin de deux arguments." << endl;
    return 0;
  }

  int a = atoi(argv[1]);
  int b = atoi(argv[2]);

  if (b == 0) {
    cout << "Erreur: division par 0" << endl;
    return 0;
  }

  cout << a << " / " << b << " = " << float(a)/b << endl;
  return 0;
}
#include 

using namespace std;

int main(int argc, char **argv) {
  if (argc < 2) {
    cout << "Le programme a besoin d'au moins un argument." << endl;
    return 0;
  }

  int somme = atoi(argv[1]);
  cout << argv[1];

  for (int i=2; i<argc; i++) {
    somme = somme + atoi(argv[i]);
    cout << " + " << argv[i];
  }

  cout << " = " << somme << endl;

  return 0;
}