unsigned Matrice [CstSz] [CstSz];
        
        Matrice [CstSz / 2] [CstSz / 2] = 1; //On positionne le centre à 1
        
        for (unsigned N (1), Li (CstSz / 2), Col (CstSz / 2), NbParTour (2) ; N < CstSz * CstSz ; )
        {
            ++Li;
            ++Col;
            
            for (unsigned i = 0 ; i < NbParTour ; ++i) // droite
                
                Matrice [--Li] [Col] = ++N;
            
            for (unsigned i = 0 ; i < NbParTour ; ++i) // haut
                
                Matrice [Li] [--Col] = ++N;
            
            for (unsigned i = 0 ; i < NbParTour ; ++i) //gauche 
                
                Matrice [++Li] [Col] = ++N;
            for (unsigned i = 0 ; i < NbParTour ; ++o)//bas
                
                Matrice [Li] [++Col] = ++N;
            
            NbParTour +=2;
        }