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void     dec_to_bin(int dec, char *c){    int poids_fort;    int taille_int;    int flag_1 = 0;    taille_int = 8 * sizeof(int);    poids_fort = 1 << taille_int -1;    while ( ( poids_fort > 0 ) )	{		if ( ( ( dec/poids_fort ) > 0 ) )		{			printf("1");			dec = dec - poids_fort;			flag_1 = 1;        }		else		{			if ( flag_1 )                printtf("0");		}		poids_fort = poids_fort / 2;	}}